A curated list of awesome Go frameworks, libraries and software.

Audio and Music

268
PortAudio - Go bindings for the PortAudio audio I/O library.
235
music-theory - Music theory models in Go.
232
waveform - Go package capable of generating waveform images from audio streams.
190
portmidi - Go bindings for PortMidi.
93
flac - Native Go FLAC encoder/decoder with support for FLAC streams.
91
id3v2 - Fast and stable ID3 parsing and writing library for Go.
90
mix - Sequence-based Go-native audio mixer for music apps.
88
go-sox - libsox bindings for go.
85
mp3 - Native Go MP3 decoder.
81
flac - No-frills native Go FLAC decoder that decodes FLAC files into byte slices.
64
taglib - Go bindings for taglib.
55
malgo - Mini audio library.
51
gaad - Native Go AAC bitstream parser.
23
go_mediainfo - libmediainfo bindings for go.
21
vorbis - "Native" Go Vorbis decoder (uses CGO, but has no dependencies).
20
minimp3 - Lightweight MP3 decoder library.
17
EasyMIDI - EasyMidi is a simple and reliable library for working with standard midi file (SMF).
8
gosamplerate - libsamplerate bindings for go.

Authentication and OAuth

5106
jwt-go - Golang implementation of JSON Web Tokens (JWT).
3935
casbin - Authorization library that supports access control models like ACL, RBAC, ABAC.
2139
oauth2 - Successor of goauth2. Generic OAuth 2.0 package that comes with JWT, Google APIs, Compute Engine and App Engine support.
2095
goth - provides a simple, clean, and idiomatic way to use OAuth and OAuth2. Handles multiple providers out of the box.
1762
authboss - Modular authentication system for the web. It tries to remove as much boilerplate and "hard things" as possible so that each time you start a new web project in Go, you can plug it in, configure, and start building your app without having to build an authentication system each time.
1509
osin - Golang OAuth2 server library.
1131
go-oauth2-server - Standalone, specification-compliant, OAuth2 server written in Golang.
1023
go-jose - Fairly complete implementation of the JOSE working group's JSON Web Token, JSON Web Signatures, and JSON Web Encryption specs.
966
gologin - chainable handlers for login with OAuth1 and OAuth2 authentication providers.
843
gorbac - provides a lightweight role-based access control (RBAC) implementation in Golang.
738
loginsrv - JWT login microservice with plugable backends such as OAuth2 (Github), htpasswd, osiam.
303
permissions2 - Library for keeping track of users, login states and permissions. Uses secure cookies and bcrypt.
199
paseto - Golang implementation of Platform-Agnostic Security Tokens (PASETO).
167
httpauth - HTTP Authentication middleware.
144
jwt-auth - JWT middleware for Golang http servers with many configuration options.
82
session - Go session management for web servers (including support for Google App Engine - GAE).
60
jwt - Clean and easy to use implementation of JSON Web Tokens (JWT).
52
branca - Golang implementation of Branca Tokens.
48
jwt - Lightweight JSON Web Token (JWT) library.
41
sessions - Dead simple, highly performant, highly customizable sessions service for go http servers.
26
securecookie - Efficient secure cookie encoding/decoding.
20
rbac - Minimalistic RBAC package for Go applications.
8
signedvalue - Signed and timestamped strings compatible with Tornado's create_signed_value, decode_signed_value, and therefore set_secure_cookie and get_secure_cookie.
7
sessiongate-go - Go session management using the SessionGate Redis module.
2
cookiestxt - provides parser of cookies.txt file format.

Bot Building

1408
telegram-bot-api - Simple and clean Telegram bot client.
834
telebot - Telegram bot framework written in Go.
419
go-chat-bot - IRC, Slack & Telegram bot written in Go.
267
slacker - Easy to use framework to create Slack bots.
185
tbot - Telegram bot server with API similar to net/http.
166
Tenyks - Service oriented IRC bot using Redis and JSON for messaging.
156
Golang CryptoTrading Bot - A golang implementation of a console-based trading bot for cryptocurrency exchanges.
113
go-sarah - Framework to build bot for desired chat services including LINE, Slack, Gitter and more.
91
hanu - Framework for writing Slack bots.
79
go-tgbot - Pure Golang Telegram Bot API wrapper, generated from swagger file, session-based router and middleware.
51
margelet - Framework for building Telegram bots.
19
govkbot - Simple Go VK bot library.
9
micha - Go Library for Telegram bot api.

Standard CLI

10974
cobra - Commander for modern Go CLI interactions.
10219
urfave/cli - Simple, fast, and fun package for building command line apps in Go (formerly codegangsta/cli).
2321
kingpin - Command line and flag parser supporting sub commands.
1311
readline - Pure golang implementation that provides most features in GNU-Readline under MIT license.
1310
go-flags - go command line option parser.
1049
docopt.go - Command-line arguments parser that will make you smile.
937
mitchellh/cli - Go library for implementing command-line interfaces.
857
cli-init - The easy way to start building Golang command line applications.
633
pflag - Drop-in replacement for Go's flag package, implementing POSIX/GNU-style --flags.
593
mow.cli - Go library for building CLI applications with sophisticated flag and argument parsing and validation.
574
go-arg - Struct-based argument parsing in Go.
550
complete - Write bash completions in Go + Go command bash completion.
542
liner - Go readline-like library for command-line interfaces.
433
cli - Feature-rich and easy to use command-line package based on golang struct tags.
414
flaggy - A robust and idiomatic flags package with excellent subcommand support.
158
climax - Alternative CLI with "human face", in spirit of Go command.
96
ukautz/clif - Small command line interface framework.
93
flag - Simple but powerful command line option parsing library for Go supporting subcommand.
77
argparse - Command line argument parser inspired by Python's argparse module.
73
commandeer - Dev-friendly CLI apps: sets up flags, defaults, and usage based on struct fields and tags.
73
sflags - Struct based flags generator for flag, urfave/cli, pflag, cobra, kingpin and other libraries.
69
wmenu - Easy to use menu structure for cli applications that prompts users to make choices.
43
cli - Simple and complete API for building command line interfaces in Go.
36
env - Tag-based environment configuration for structs.
30
wlog - Simple logging interface that supports cross-platform color and concurrency.
28
flagvar - A collection of flag argument types for Go's standard flag package.
28
gocmd - Go library for building command line applications.
26
strumt - Library to create prompt chain.
11
argv - Go library to split command line string as arguments array using the bash syntax.
11
go-commander - Go library to simplify CLI workflow.
5
go-getoptions - Go option parser inspired on the flexibility of Perl’s GetOpt::Long.
3
sand - Simple API for creating interpreters and so much more.
hiboot cli - cli application framework with auto configuration and dependency injection.

Advanced Console UIs

8414
termui - Go terminal dashboard based on termbox-go and inspired by blessed-contrib.
4008
gocui - Minimalist Go library aimed at creating Console User Interfaces.
3306
termbox-go - Termbox is a library for creating cross-platform text-based interfaces.
2876
color - Versatile package for colored terminal output.
2099
go-prompt - Library for building a powerful interactive prompt, inspired by python-prompt-toolkit.
1231
uiprogress - Flexible library to render progress bars in terminal applications.
1029
asciigraph - Go package to make lightweight ASCII line graph ╭┈╯ in command line apps with no other dependencies.
726
uilive - Library for updating terminal output in realtime.
493
progressbar - Basic thread-safe progress bar that works in every OS.
464
uitable - Library to improve readability in terminal apps using tabular data.
440
aurora - ANSI terminal colors that supports fmt.Printf/Sprintf.
429
mpb - Multi progress bar for terminal applications.
338
go-colorable - Colorable writer for windows.
304
go-isatty - isatty for golang.
289
chalk - Intuitive package for prettifying terminal/console output.
228
tabby - A tiny library for super simple Golang tables.
204
termtables - Go port of the Ruby library terminal-tables for simple ASCII table generation as well as providing markdown and HTML output.
191
go-colortext - Go library for color output in terminals.
134
gookit/color - Terminal color rendering tool library, support 16 colors, 256 colors, RGB color rendering output, compatible with Windows.
125
simpletable - Simple tables in terminal with Go.
96
termdash - Go terminal dashboard based on termbox-go and inspired by termui.
55
cfmt - Contextual fmt inspired by bootstrap color classes.
24
tabular - Print ASCII tables from command line utilities without the need to pass large sets of data to the API.
15
colourize - Go library for ANSI colour text in terminals.
8
go-ataman - Go library for rendering ANSI colored text templates in terminals.
7
ctc - The non-invasive cross-platform terminal color library does not need to modify the Print method.
gommon/color - Style terminal text.

Configuration

7816
viper - Go configuration with fangs.
2153
kelseyhightower/envconfig - Go library for managing configuration data from environment variables.
1794
godotenv - Go port of Ruby's dotenv library (Loads environment variables from .env).
1355
ini - Go package to read and write INI files.
724
env - Parse environment variables to Go structs (with defaults).
239
store - Lightweight configuration manager for Go.
212
confita - Load configuration in cascade from multiple backends into a struct.
194
joshbetz/config - Small configuration library for Go that parses environment variables, JSON files, and reloads automatically on SIGHUP.
193
config - JSON or YAML configuration wrapper with environment variables and flags parsing.
165
hjson - Human JSON, a configuration file format for humans. Relaxed syntax, fewer mistakes, more comments.
138
envconfig - Read your configuration from environment variables.
106
gcfg - read INI-style configuration files into Go structs; supports user-defined types and subsections.
95
goConfig - Parses a struct as input and populates the fields of this struct with parameters from command line, environment variables and configuration file.
92
envh - Helpers to manage environment variables.
89
envcfg - Un-marshaling environment variables to Go structs.
56
gofigure - Go application configuration made easy.
49
gookit/config - application config manage(load,get,set). support JSON, YAML, TOML, INI, HCL. multi file load, data override merge.
45
configure - Provides configuration through multiple sources, including JSON, flags and environment variables.
23
go-up - A simple configuration library with recursive placeholders resolution and no magic.
22
ingo - Flags persisted in an ini-like config file.
21
xdg - Cross platform package that follows the XDG Standard.
19
mini - Golang package for parsing ini-style configuration files.
7
envconf - Configuration from environment.
5
conflate - Library/tool to merge multiple JSON/YAML/TOML files from arbitrary URLs, validation against a JSON schema, and application of default values defined in the schema.
3
sprbox - Build-environment aware toolbox factory and agnostic config parser (YAML, TOML, JSON and Environment vars).
gone/jconf - Modular JSON configuration. Keep you config structs along with the code they configure and delegate parsing to submodules without sacrificing full config serialization.

Continuous Integration

17506
drone - Drone is a Continuous Integration platform built on Docker, written in Go.
540
goveralls - Go integration for Coveralls.io continuous code coverage tracking system.
94
overalls - Multi-Package go project coverprofile for tools like goveralls.
32
duci - A simple ci server no needs domain specific languages.
22
gomason - Test, Build, Sign, and Publish your go binaries from a clean workspace.
11
roveralls - Recursive coverage testing tool.

CSS Preprocessors

409
gcss - Pure Go CSS Preprocessor.
118
go-libsass - Go wrapper to the 100% Sass compatible libsass project.

Data Structures

5407
gods - Go Data Structures. Containers, Sets, Lists, Stacks, Maps, BidiMaps, Trees, HashSet etc.
4816
go-datastructures - Collection of useful, performant, and thread-safe data structures.
1089
boomfilters - Probabilistic data structures for processing continuous, unbounded streams.
992
golang-set - Thread-Safe and Non-Thread-Safe high-performance sets for Go.
748
gota - Implementation of dataframes, series, and data wrangling methods for Go.
635
hyperloglog - HyperLogLog implementation with Sparse, LogLog-Beta bias correction and TailCut space reduction.
591
willf/bloom - Go package implementing Bloom filters.
577
roaring - Go package implementing compressed bitsets.
450
cuckoofilter - Cuckoo filter: a good alternative to a counting bloom filter implemented in Go.
445
bitset - Go package implementing bitsets.
374
trie - Trie implementation in Go.
300
go-geoindex - In-memory geo index.
271
mafsa - MA-FSA implementation with Minimal Perfect Hashing.
179
goskiplist - Skip list implementation in Go.
171
hilbert - Go package for mapping values to and from space-filling curves, such as Hilbert and Peano curves.
158
algorithms - Algorithms and data structures.CLRS study.
126
bloom - Bloom filters implemented in Go.
125
merkletree - Implementation of a merkle tree providing an efficient and secure verification of the contents of data structures.
110
binpacker - Binary packer and unpacker helps user build custom binary stream.
92
encoding - Integer Compression Libraries for Go.
85
ring - Go implementation of a high performance, thread safe bloom filter.
82
skiplist - Very fast Go Skiplist implementation.
82
ttlcache - In-memory LRU string-interface{} map with expiration for golang.
65
go-adaptive-radix-tree - Go implementation of Adaptive Radix Tree.
61
conjungo - A small, powerful and flexible merge library.
59
skiplist - Skiplist implementation in Go.
42
levenshtein - Implementation to calculate levenshtein distance in Go.
40
count-min-log - Go implementation Count-Min-Log sketch: Approximately counting with approximate counters (Like Count-Min sketch but using less memory).
37
deque - Fast ring-buffer deque (double-ended queue).
28
bit - Golang set data structure with bonus bit-twiddling functions.
25
levenshtein - Levenshtein distance and similarity metrics with customizable edit costs and Winkler-like bonus for common prefix.
24
go-mcache - Fast in-memory key:value store/cache library. Pointer caches.
18
concurrent-writer - Highly concurrent drop-in replacement for bufio.Writer.
12
bloom - Golang Bloom filter implementation.
12
goset - A useful Set collection implementation for Go.
10
pipeline - An implementation of pipelines with fan-in and fan-out.
8
go-ef - A Go implementation of the Elias-Fano encoding.
5
set - Simple set data structure implementation in Go using LinkedHashMap.
4
hide - ID type with marshalling to/from hash to prevent sending IDs to clients.
4
mspm - Multi-String Pattern Matching Algorithm for information retrieval.
3
goconcurrentqueue - Concurrent FIFO queue.
3
null - Nullable Go types that can be marshalled/unmarshalled to/from JSON.
1
deque - A highly optimized double-ended queue.
timedmap - Map with expiring key-value pairs.
go-rquad - Region quadtrees with efficient point location and neighbour finding.

Database

22719
prometheus - Monitoring system and time series database.
17788
tidb - TiDB is a distributed SQL database. Inspired by the design of Google F1.
15818
influxdb - Scalable datastore for metrics, events, and real-time analytics.
15646
cockroach - Scalable, Geo-Replicated, Transactional Datastore.
9552
bolt - Low-level key/value database for Go.
9028
dgraph - Scalable, Distributed, Low Latency, High Throughput Graph Database.
7670
vitess - vitess provides servers and tools which facilitate scaling of MySQL databases for large scale web services.
7221
groupcache - Groupcache is a caching and cache-filling library, intended as a replacement for memcached in many cases.
5780
pgweb - Web-based PostgreSQL database browser.
5472
badger - Fast key-value store in Go.
4289
rqlite - The lightweight, distributed, relational database built on SQLite.
4236
kingshard - kingshard is a high performance proxy for MySQL powered by Golang.
2902
ledisdb - Ledisdb is a high performance NoSQL like Redis based on LevelDB.
2856
goleveldb - Implementation of the LevelDB key/value database in Go.
2641
orchestrator - MySQL replication topology manager & visualizer.
2472
go-cache - In-memory key:value store/cache (similar to Memcached) library for Go, suitable for single-machine applications.
2312
tiedot - Your NoSQL database powered by Golang.
2292
buntdb - Fast, embeddable, in-memory key/value database for Go with custom indexing and spatial support.
2068
go-mysql-elasticsearch - Sync your MySQL data into Elasticsearch automatically.
1970
xo - Generate idiomatic Go code for databases based on existing schema definitions or custom queries supporting PostgreSQL, MySQL, SQLite, Oracle, and Microsoft SQL Server.
1968
pREST - Serve a RESTful API from any PostgreSQL database.
1963
Squirrel - Go library that helps you build SQL queries.
1952
BigCache - Efficient key/value cache for gigabytes of data.
1803
migrate - Database migrations. CLI and Golang library.
1598
go-mysql - Go toolset to handle MySQL protocol and replication.
1262
sql-migrate - Database migration tool. Allows embedding migrations into the application using go-bindata.
831
cache2go - In-memory key:value cache which supports automatic invalidation based on timeouts.
704
GCache - Cache library with support for expirable Cache, LFU, LRU and ARC.
696
diskv - Home-grown disk-backed key-value store.
690
moss - Moss is a simple LSM key-value storage engine written in 100% Go.
681
nutsdb - Nutsdb is a simple, fast, embeddable, persistent key/value store written in pure Go. It supports fully serializable transactions and many data structures such as list, set, sorted set.
644
CovenantSQL - CovenantSQL is a SQL database on blockchain.
592
gendry - Non-invasive SQL builder and powerful data binder.
516
eliasdb - Dependency-free, transactional graph database with REST API, phrase search and SQL-like query language.
495
goqu - Idiomatic SQL builder and query library.
410
Dotsql - Go library that helps you keep sql files in one place and use them with ease.
405
ozzo-dbx - Powerful data retrieval methods as well as DB-agnostic query building capabilities.
369
fastcache - fast thread-safe inmemory cache for big number of entries. Minimizes GC overhead.
356
levigo - Levigo is a Go wrapper for LevelDB.
262
gormigrate - Database schema migration helper for Gorm ORM.
246
chproxy - HTTP proxy for ClickHouse database.
184
pudge - Fast and simple key/value store written using Go's standard library.
167
piladb - Lightweight RESTful database engine based on stack data structures.
146
sqrl - SQL query builder, fork of Squirrel with improved performance.
141
scaneo - Generate Go code to convert database rows into arbitrary structs.
132
myreplication - MySql binary log replication listener. Supports statement and row based replication.
125
Vasto - A distributed high-performance key-value store. On Disk. Eventual consistent. HA. Able to grow or shrink without service interruption.
103
goose - Database migration tool. You can manage your database's evolution by creating incremental SQL or Go scripts.
103
clickhouse-bulk - Collects small insterts and sends big requests to ClickHouse servers.
78
darwin - Database schema evolution library for Go.
73
slowpoke - Key-value store with persistence.
73
igor - Abstraction layer for PostgreSQL that supports advanced functionality and uses gorm-like syntax.
49
godbal - Database Abstraction Layer (dbal) for go. Support SQL builder and get result easily.
43
octillery - Go package for sharding databases ( Supports every ORM or raw SQL ).
38
couchcache - RESTful caching micro-service backed by Couchbase server.
34
Scribble - Tiny flat file JSON store.
28
dbbench - Database benchmarking tool with support for several databases and scripts.
25
clusteredBigCache - BigCache with clustering support and individual item expiration.
23
pravasan - Simple Migration tool - currently for MySQL but planning to soon support Postgres, SQLite, MongoDB, etc.
23
prep - Use prepared SQL statements without changing your code.
19
go-pg-migrations - A Go package to help write migrations with go-pg/pg.
17
go-fixtures - Django style fixtures for Golang's excellent built-in database/sql library.
13
tempdb - Key-value store for temporary items.
10
rwdb - rwdb provides read replica capability for multiple database servers setup.
6
gorocksdb - Gorocksdb is a wrapper for RocksDB written in Go.
ormlite - Lightweight package containing some ORM-like features and helpers for sqlite databases.
Squalus - Thin layer over the Go SQL package that makes it easier to perform queries.
soda - Database migration, creation, ORM, etc... for MySQL, PostgreSQL, and SQLite.

Database Drivers

12301
cayley - Graph database with support for multiple backends.
7145
go-sql-driver/mysql - MySQL driver for Go.
5611
redigo - Redigo is a Go client for the Redis database.
5260
redis - Redis client for Golang.
5041
bleve - Modern text indexing library for go.
4733
pq - Pure Go Postgres driver for database/sql.
4329
riot - Go Open Source, Distributed, Simple and efficient Search Engine.
3572
elastic - Elasticsearch client for Go.
3111
go-sqlite3 - SQLite3 driver for go that uses database/sql.
2201
mongo-go-driver - Official MongoDB driver for the Go language.
1669
pgx - PostgreSQL driver supporting features beyond those exposed by database/sql.
1452
mgo - MongoDB driver for the Go language that implements a rich and well tested selection of features under a very simple API following standard Go idioms.
1423
gorethink - Go language driver for RethinkDB.
1017
gomemcache - memcache client library for the Go programming language.
937
elastigo - Elasticsearch client library.
917
go-mssqldb - Microsoft MSSQL driver for Go.
364
go-oci8 - Oracle driver for go that uses database/sql.
350
neoism - Neo4j client for Golang.
305
elasticsql - Convert sql to elasticsearch dsl in Go.
291
aerospike-client-go - Aerospike client in Go language.
286
go-couchbase - Couchbase client in Go.
281
gocb - Official Couchbase Go SDK.
241
redis - Redis-protocol compatible TCP servers/services.
183
goracle - Oracle driver for Go, using the ODPI-C driver.
103
cachego - Golang Cache component for multiple drivers.
98
firebirdsql - Firebird RDBMS SQL driver for Go.
85
gofreetds - Microsoft MSSQL driver. Go wrapper over FreeTDS.
84
go-adodb - Microsoft ActiveX Object DataBase driver for go that uses database/sql.
72
Neo4j-GO - Neo4j REST Client in golang.
68
go-rejson - Golang client for redislabs' ReJSON module using Redigo golang client. Store and manipulate structs as JSON objects in redis with ease.
63
arangolite - Lightweight golang driver for ArangoDB.
63
dynago - Dynago is a principle of least surprise client for DynamoDB.
59
skizze - probabilistic data-structures service and storage.
51
go-couchdb - Yet another CouchDB HTTP API wrapper for Go.
51
gokv - Simple key-value store abstraction and implementations for Go (Redis, Consul, etcd, bbolt, BadgerDB, LevelDB, Memcached, DynamoDB, S3, PostgreSQL, MongoDB, CockroachDB and many more)
29
forestdb - Go bindings for ForestDB.
27
go-pilosa - Go client library for Pilosa.
26
avatica - Apache Avatica/Phoenix SQL driver for database/sql.
24
goriak - Go language driver for Riak KV.
24
neo4j - Neo4j Rest API Bindings for Golang.
24
goes - Library to interact with Elasticsearch.
11
bgc - Datastore Connectivity for BigQuery for go.
9
xredis - Typesafe, customizable, clean & easy to use Redis client.
8
dsc - Datastore connectivity for SQL, NoSQL, structured files.
4
asc - Datastore Connectivity for Aerospike for go.
4
godscache - A wrapper for the Google Cloud Platform Go Datastore package that adds caching using memcached.
gocql - Go language driver for Apache Cassandra.

Date and Time

2007
now - Now is a time toolkit for golang.
813
dateparse - Parse date's without knowing format in advance.
309
carbon - Simple Time extension with a lot of util methods, ported from PHP Carbon library.
209
durafmt - Time duration formatting library for Go.
157
timeutil - Useful extensions (Timedelta, Strftime, ...) to the golang's time package.
62
iso8601 - Efficiently parse ISO8601 date-times without regex.
60
timespan - For interacting with intervals of time, defined as a start time and a duration.
48
go-persian-calendar - The implementation of the Persian (Solar Hijri) Calendar in Go (golang).
24
date - Augments Time for working with dates, date ranges, time spans, periods, and time-of-day.
18
feiertage - Set of functions to calculate public holidays in Germany, incl. specialization on the states of Germany (Bundesländer). Things like Easter, Pentecost, Thanksgiving...
18
goweek - Library for working with week entity in golang.
10
go-sunrise - Calculate the sunrise and sunset times for a given location.
9
kair - Date and Time - Golang Formatting Library.
9
NullTime - Nullable time.Time.
7
tuesday - Ruby-compatible Strftime function.
5
strftime - C99-compatible strftime formatter.

Distributed Systems

12947
go-kit - Microservice toolkit with support for service discovery, load balancing, pluggable transports, request tracking, etc.
7706
grpc-go - The Go language implementation of gRPC. HTTP/2 based RPC.
7502
jaeger - A distributed tracing system.
5697
micro - Pluggable microservice toolkit and distributed systems platform.
5370
NATS - Lightweight, high performance messaging system for microservices, IoT, and cloud native systems.
3291
rpcx - Distributed pluggable RPC service framework like alibaba Dubbo.
2761
tendermint - High-performance middleware for transforming a state machine written in any programming language into a Byzantine Fault Tolerant replicated state machine using the Tendermint consensus and blockchain protocols.
2628
torrent - BitTorrent client package.
2540
raft - Golang implementation of the Raft consensus protocol, by HashiCorp.
2370
glow - Easy-to-Use scalable distributed big data processing, Map-Reduce, DAG execution, all in pure Go.
1864
gleam - Fast and scalable distributed map/reduce system written in pure Go and Luajit, combining Go's high concurrency with Luajit's high performance, runs standalone or distributed.
1677
emitter-io - High performance, distributed, secure and low latency publish-subscribe platform built with MQTT, Websockets and love.
1332
KrakenD - Ultra performant API Gateway framework with middlewares.
930
hprose - Very newbility RPC Library, support 25+ languages now.
533
ringpop-go - Scalable, fault-tolerant application-layer sharding for Go applications.
525
gorpc - Simple, fast and scalable RPC library for high load.
441
go-health - Library for enabling asynchronous dependency health checks in your service.
356
go-peerflix - Video streaming torrent client.
292
sleuth - Library for master-less p2p auto-discovery and RPC between HTTP services (using ZeroMQ).
273
digota - grpc ecommerce microservice.
233
go-jump - Port of Google's "Jump" Consistent Hash function.
156
consistent - Consistent hashing with bounded loads.
111
redis-lock - Simplified distributed locking implementation using Redis.
107
jsonrpc - The jsonrpc package helps implement of JSON-RPC 2.0.
81
jsonrpc - JSON-RPC 2.0 HTTP client implementation.
47
celeriac - Library for adding support for interacting and monitoring Celery workers, tasks and events in Go.
28
doublejump - A revamped Google's jump consistent hash.
23
drmaa - Job submission library for cluster schedulers based on the DRMAA standard.
11
flowgraph - flow-based programming package.
6
dynatomic - A library for using DynamoDB as an atomic counter.
1
outboxer - Outboxer is a go library that implements the outbox pattern.
dynamolock - DynamoDB-backed distributed locking implementation.
pglock - PostgreSQL-backed distributed locking implementation.
raft - Go implementation of the Raft consensus protocol, by CoreOS.
dht - BitTorrent Kademlia DHT implementation.

Email

4584
MailHog - Email and SMTP testing with web and API interface.
2151
Gomail - Gomail is a very simple and powerful package to send emails.
1484
hermes - Golang package that generates clean, responsive HTML e-mails.
1012
email - A robust and flexible email library for Go.
634
go-imap - IMAP library for clients and servers.
471
SendGrid - SendGrid's Go library for sending email.
160
Hectane - Lightweight SMTP client providing an HTTP API.
146
douceur - CSS inliner for your HTML emails.
79
go-message - Streaming library for the Internet Message Format and mail messages.
49
smtp - SMTP server protocol state machine.
47
go-dkim - DKIM library, to sign & verify email.
chasquid - SMTP server written in Go.

Embeddable Scripting Languages

4427
otto - JavaScript interpreter written in Go.
2682
gopher-lua - Lua 5.1 VM and compiler written in Go.
1548
go-lua - Port of the Lua 5.2 VM to pure Go.
1108
tengo - Bytecode compiled script language for Go.
846
anko - Scriptable interpreter written in Go.
813
go-python - naive go bindings to the CPython C-API.
632
go-duktape - Duktape JavaScript engine bindings for Go.
614
go-php - PHP bindings for Go.
424
golua - Go bindings for Lua C API.
414
gisp - Simple LISP in Go.
317
agora - Dynamically typed, embeddable programming language in Go.
305
expr - an engine that can evaluate expressions.
90
gval - A highly customizable expression language written in Go.
25
binder - Go to Lua binding library, based on gopher-lua.
25
purl - Perl 5.18.2 embedded in Go.
16
ngaro - Embeddable Ngaro VM implementation enabling scripting in Retro.
12
gentee - Embeddable scripting programming language.

Error Handling

4217
errors - Package that provides simple error handling primitives.
643
go-multierror - Go (golang) package for representing a list of errors as a single error.
514
errorx - A feature rich error package with stack traces, composition of errors and more.
394
tracerr - Golang errors with stack trace and source fragments.
10
werr - Error Wrapper creates an wrapper for the error type in Go which captures the File, Line and Stack of where it was called.

Files

1968
afero - FileSystem Abstraction System for Go.
810
pdfcpu - PDF processor.
453
notify - File system event notification library with simple API, similar to os/signal.
51
opc - Load Open Packaging Conventions (OPC) files for Go.
42
skywalker - Package to allow one to concurrently go through a filesystem with ease.
41
go-csv-tag - Load csv file using tag.
31
tarfs - Implementation of the FileSystem interface for tar files.
12
go-gtfs - Load gtfs files in go.
11
go-decent-copy - Copy files for humans.
6
vfs - A pluggable, extensible, and opinionated set of filesystem functionality for Go across a number of filesystem types such as os, S3, and GCS.

Financial

1361
decimal - Arbitrary-precision fixed-point decimal numbers.
556
go-money - Implementation of Fowler's Money pattern.
537
go-finance - Comprehensive financial markets data in Go.
446
accounting - money and currency formatting for golang.
110
techan - Technical analysis library with advanced market analysis and trading strategies.
55
vat - VAT number validation & EU VAT rates.
54
ofxgo - Query OFX servers and/or parse the responses (with example command-line client).
46
transaction - Embedded transactional database of accounts, running in multithreaded mode.
33
go-finance - Library of financial functions for time value of money (annuities), cash flow, interest rate conversions, bonds and depreciation calculations.
26
orderbook - Matching Engine for Limit Order Book in Golang.

Forms

928
nosurf - CSRF protection middleware for Go.
735
binding - Binds form and JSON data from net/http Request to struct.
373
gorilla/csrf - CSRF protection for Go web applications & services.
328
form - Decodes url.Values into Go value(s) and Encodes Go value(s) into url.Values. Dual Array and Full map support.
163
conform - Keeps user input in check. Trims, sanitizes & scrubs data based on struct tags.
111
formam - decode form's values into a struct.
97
forms - Framework-agnostic library for parsing and validating form/JSON data which supports multipart forms and files.
23
bind - Bind form data to any Go values.

Functional

1019
go-underscore - Useful collection of helpfully functional Go collection utilities.
74
fpGo - Monad, Functional Programming features for Golang.
19
fuego - Functional Experiment in Go.

Game Development

2749
Leaf - Lightweight game server framework.
2129
Pixel - Hand-crafted 2D game library in Go.
1565
Ebiten - dead simple 2D game library in Go.
1060
go-sdl2 - Go bindings for the Simple DirectMedia Layer.
1009
gonet - Game server skeleton implemented with golang.
979
termloop - Terminal-based game engine for Go, built on top of Termbox.
958
engo - Engo is an open-source 2D game engine written in Go. It follows the Entity-Component-System paradigm.
958
goworld - Scalable game server engine, featuring space-entity framework and hot-swapping.
861
nano - Lightweight, facility, high performance golang based game server framework.
618
g3n - Go 3D Game Engine.
578
Oak - Pure Go game engine.
408
Azul3D - 3D game engine written in Go.
344
raylib-go - Go bindings for raylib, a simple and easy-to-use library to learn videogames programming.
310
go-astar - Go implementation of the A* path finding algorithm.
303
GarageEngine - 2d game engine written in Go working on OpenGL.
220
Pitaya - Scalable game server framework with clustering support and client libraries for iOS, Android, Unity and others through the C SDK.
153
go3d - Performance oriented 2D/3D math package for Go.
77
glop - Glop (Game Library Of Power) is a fairly simple cross-platform game library.
12
go-collada - Go package for working with the Collada file format.

Generation and Generics

1675
go-linq - .NET LINQ-like query methods for Go.
1158
jennifer - Generate arbitrary Go code without templates.
982
gen - Code generation tool for ‘generics’-like functionality.
675
goderive - Derives functions from input types.
207
GoWrap - Generate decorators for Go interfaces using simple templates.
162
interfaces - Command line tool for generating interface definitions.
78
pkgreflect - Go preprocessor for package scoped reflection.
67
go-enum - Code generation for enums from code comments.
40
efaceconv - Code generation tool for high performance conversion from interface{} to immutable type without allocations.
19
gotype - Golang source code parsing, usage like reflect package.

Geographic

6019
Tile38 - Geolocation DB with spatial index and realtime geofencing.
810
S2 geometry - S2 geometry library in Go.
94
geocache - In-memory cache that is suitable for geolocation based applications.
42
osm - Library for reading, writing and working with OpenStreetMap data and APIs.
19
geoserver - geoserver Is a Go Package For Manipulating a GeoServer Instance via the GeoServer REST API.
11
pbf - OpenStreetMap PBF golang encoder/decoder.
10
gismanager - Publish Your GIS Data(Vector Data) to PostGIS and Geoserver.

Go Compilers

8048
gopherjs - Compiler from Go to JavaScript.
957
llgo - LLVM-based compiler for Go.
384
tardisgo - Golang to Haxe to CPP/CSharp/Java/JavaScript transpiler.
115
c4go - Transpile C code to Go code.
9
f4go - Transpile FORTRAN 77 code to Go code.

Goroutines

2141
goworker - goworker is a Go-based background worker.
1409
ants - A high-performance goroutine pool for golang.
1155
tunny - Goroutine pool for golang.
465
grpool - Lightweight Goroutine pool.
454
pool - Limited consumer goroutine or unlimited goroutine pool for easier goroutine handling and cancellation.
164
go-floc - Orchestrate goroutines with ease.
94
go-flow - Control goroutines execution order.
82
workerpool - Goroutine pool that limits the concurrency of task execution, not the number of tasks queued.
64
semaphore - Semaphore pattern implementation with timeout of lock/unlock operations based on channel and context.
63
semaphore - Fast resizable semaphore implementation based on CAS (faster than channel-based semaphore implementations).
48
gpool - manages a resizeable pool of context-aware goroutines to bound concurrency.
34
worker-pool - goworker is a Go simple async worker pool.
24
parallel-fn - Run functions in parallel.
23
cyclicbarrier - CyclicBarrier for golang.
14
async - A safe way to execute functions asynchronously, recovering them in case of panic.
14
threadpool - Golang threadpool implementation.
12
breaker - 🚧 Flexible mechanism to make your code breakable.
6
artifex - Simple in-memory job queue for Golang using worker-based dispatching.
5
stl - Software transactional locks based on Software Transactional Memory (STM) concurrency control mechanism.
4
go-trylock - TryLock support on read-write lock for Golang.
oversight - Oversight is a complete implementation of the Erlang supervision trees.
GoSlaves - Simple and Asynchronous Goroutine pool library.

GUI

6518
ui - Platform-native GUI library for Go. Cross platform.
5324
qt - Qt binding for Go (support for Windows / macOS / Linux / Android / iOS / Sailfish OS / Raspberry Pi).
4009
robotgo - Go Native cross-platform GUI system automation. Control the mouse, keyboard and other.
3983
webview - Cross-platform webview window with simple two-way JavaScript bindings (Windows / macOS / Linux).
3306
walk - Windows application library kit for Go.
2769
app - Package to create apps with GO, HTML and CSS. Supports: MacOS, Windows in progress.
2389
go-astilectron - Build cross platform GUI apps with GO and HTML/JS/CSS (powered by Electron).
1312
go-sciter - Go bindings for Sciter: the Embeddable HTML/CSS/script engine for modern desktop UI development. Cross platform.
834
fyne - Cross platform native GUIs designed for Go, rendered using EFL. Supports: Linux, macOS, Windows.
644
systray - Cross platform Go library to place an icon and menu in the notification area.
633
gotk3 - Go bindings for GTK3.
480
gosx-notifier - OSX Desktop Notifications library for Go.
178
gowd - Rapid and simple desktop UI development with GO, HTML, CSS and NW.js. Cross platform.
146
trayhost - Cross-platform Go library to place an icon in the host operating system's taskbar.
go-gtk - Go bindings for GTK.

Images

2391
ln - 3D line art rendering in Go.
2336
imaginary - Fast and simple HTTP microservice for image resizing.
2216
imaging - Simple Go image processing package.
2046
gocv - Go package for computer vision using OpenCV 3.3+.
2034
resize - Image resizing for Go with common interpolation methods.
1938
bild - Collection of image processing algorithms in pure Go.
1721
gg - 2D rendering in pure Go.
1721
pt - Path tracing engine written in Go.
1232
svgo - Go Language Library for SVG generation.
1204
smartcrop - Finds good crops for arbitrary images and crop sizes.
1161
gift - Package of image processing filters.
1032
go-opencv - Go bindings for OpenCV.
986
geopattern - Create beautiful generative image patterns from a string.
974
picfit - An image resizing server written in Go.
890
imagick - Go binding to ImageMagick's MagickWand C API.
704
bimg - Small package for fast and efficient image processing using libvips.
347
mort - Storage and image processing server written in Go.
287
stegify - Go tool for LSB steganography, capable of hiding any file within an image.
284
govatar - Library and CMD tool for generating funny avatars.
274
go-nude - Nudity detection with Go.
242
image2ascii - Convert image to ASCII.
172
goimagehash - Go Perceptual image hashing package.
157
rez - Image resizing in pure Go and SIMD.
128
img - Selection of image manipulation tools.
84
go-cairo - Go binding for the cairo graphics library.
48
go-gd - Go binding for GD library.
44
mergi - Tool & Go library for image manipulation (Merge, Crop, Resize, Watermark, Animate).
24
go-webcolors - Port of webcolors library from Python to Go.
22
tga - Package tga is a TARGA image format decoder/encoder.
19
cameron - An avatar generator for Go.
14
steganography - Pure Go Library for LSB steganography.
6
mpo - Decoder and conversion tool for MPO 3D Photos.

IoT (Internet of Things)

5251
gobot - Gobot is a framework for robotics, physical computing, and the Internet of Things.
972
flogo - Project Flogo is an Open Source Framework for IoT Edge Apps & Integration.
774
gatt - Gatt is a Go package for building Bluetooth Low Energy peripherals.
411
mainflux - Industrial IoT Messaging and Device Management Server.
222
devices - Suite of libraries for IoT devices, experimental for x/exp/io.
165
sensorbee - Lightweight stream processing engine for IoT.
154
connectordb - Open-Source Platform for Quantified Self & IoT.
88
huego - An extensive Philips Hue client library for Go.
30
eywa - Project Eywa is essentially a connection manager that keeps track of connected devices.
29
iot - IoT is a simple framework for implementing a Google IoT Core device.
periph - Peripherals I/O to interface with low-level board facilities.

Job Scheduler

553
gron - Define time-based tasks using a simple Go API and Gron’s scheduler will run them accordingly.
522
JobRunner - Smart and featureful cron job scheduler with job queuing and live monitoring built in.
442
jobs - Persistent and flexible background jobs library.
266
scheduler - Cronjobs scheduling made easy.
169
go-cron - Simple Cron library for go that can execute closures or functions at varying intervals, from once a second to once a year on a specific date and time. Primarily for web applications and long running daemons.
57
clockwork - Simple and intuitive job scheduling library in Go.
56
clockwerk - Go package to schedule periodic jobs using a simple, fluent syntax.
28
leprechaun - Job scheduler that supports webhooks, crons and classic scheduling.

JSON

4151
GJSON - Get a JSON value with one line of code.
1930
gojson - Automatically generate Go (golang) struct definitions from example JSON.
132
gojq - JSON query in Golang.
108
kazaam - API for arbitrary transformation of JSON documents.
85
jsongo - Fluent API to make it easier to create Json objects.
53
jsonf - Console tool for highlighted formatting and struct query fetching JSON.
52
gjo - Small utility to create JSON objects.
35
JayDiff - JSON diff utility written in Go.
30
mp - Simple cli email parser. It currently takes stdin and outputs JSON.
18
go-respond - Go package for handling common HTTP JSON responses.
8
jsonhal - Simple Go package to make custom structs marshal into HAL compatible JSON responses.
5
jsonapi-errors - Go bindings based on the JSON API errors reference.
JSON-to-Go - Convert JSON to Go struct.

Logging

10218
logrus - Structured logger for Go.
6249
zap - Fast, structured, leveled logging in Go.
3004
spew - Implements a deep pretty printer for Go data structures to aid in debugging.
2152
glog - Leveled execution logs for Go.
1797
zerolog - Zero-allocation JSON logger.
1371
tail - Go package striving to emulate the features of the BSD tail program.
1276
seelog - Logging functionality with flexible dispatching, filtering, and formatting.
1201
lumberjack - Simple rolling logger, implements io.WriteCloser.
846
log15 - Simple, powerful logging for Go.
677
log - Structured logging package for Go.
326
logxi - 12-factor app logger that is fast and makes you happy.
310
onelog - Onelog is a dead simple but very efficient JSON logger. It is the fastest JSON logger out there in all scenario. Also, it is one of the logger with the lowest allocation.
259
log - Simple, configurable and scalable Structured Logging for Go.
239
logutils - Utilities for slightly better logging in Go (Golang) extending the standard logger.
220
go-logger - Simple logger of Go Programs, with level handlers.
131
logger - Minimalistic logging library for Go.
126
xlog - Structured logger for net/context aware HTTP handlers with flexible dispatching.
103
ozzo-log - High performance logging supporting log severity, categorization, and filtering. Can send filtered log messages to various targets (e.g. console, network, mail).
83
log-voyage - Full-featured logging saas written in golang.
44
stdlog - Stdlog is an object-oriented library providing leveled logging. It is very useful for cron jobs.
38
gologger - Simple easy to use log lib for go, logs in Colored Console, Simple Console, File or Elasticsearch.
33
glg - glg is simple and fast leveled logging library for Go.
33
go-log - Log4j implementation in Go.
32
logex - Golang log lib, supports tracking and level, wrap by standard log lib.
25
logrusly - logrus plug-in to send errors to a Loggly.
22
go-log - Log lib supports level and multi handlers.
21
log - Structured log interface for Go cleanly separates logging facade from its implementation.
17
go-cronowriter - Simple writer that rotate log files automatically based on current date and time, like cronolog.
17
journald - Go implementation of systemd Journal's native API for logging.
16
mlog - Simple logging module for go, with 5 levels, an optional rotating logfile feature and stdout/stderr output.
15
distillog - distilled levelled logging (think of it as stdlib + log levels).
13
gomol - Multiple-output, structured logging for Go with extensible logging outputs.
8
go-log - Simple and configurable Logging in Go, with level, formatters and writers.
7
logdump - Package for multi-level logging.
6
xlog - Plugin architecture and flexible log system for Go, with level ctrl, multiple log target and custom log format.
5
glo - PHP Monolog inspired logging facility with identical severity levels.
4
logmatic - Colorized logger for Golang with dynamic log level configuration.
4
logo - Golang logger to different configurable writers.
gone/log - Fast, extendable, full-featured, std-lib source compatible log library.

Machine Learning

6350
GoLearn - General Machine Learning library for Go.
2467
gorgonia - graph-based computational library like Theano for Go that provides primitives for building various machine learning and neural network algorithms.
1085
tfgo - Easy to use Tensorflow bindings: simplifies the usage of the official Tensorflow Go bindings. Define computational graphs in Go, load and execute models trained in Python.
967
goml - On-line Machine Learning in Go.
753
gosseract - Go package for OCR (Optical Character Recognition), by using Tesseract C++ library.
626
CloudForest - Fast, flexible, multi-threaded ensembles of decision trees for machine learning in pure Go.
600
bayesian - Naive Bayesian Classification for Golang.
583
eaopt - An evolutionary optimization library.
358
gorse - A High Performance Recommender System Package based on Collaborative Filtering for Go.
337
gobrain - Neural Networks written in go.
235
regommend - Recommendation & collaborative filtering engine.
202
go-deep - A feature-rich neural network library in Go.
164
go-galib - Genetic Algorithms library written in Go / golang.
137
goRecommend - Recommendation Algorithms library written in Go.
119
shield - Bayesian text classifier with flexible tokenizers and storage backends for Go.
98
go-fann - Go bindings for Fast Artificial Neural Networks(FANN) library.
73
goga - Genetic algorithm library for Go.
60
neural-go - Multilayer perceptron network implemented in Go, with training via backpropagation.
59
libsvm - libsvm golang version derived work based on LIBSVM 3.14.
56
go-pr - Pattern recognition package in Go lang.
52
neat - Plug-and-play, parallel Go framework for NeuroEvolution of Augmenting Topologies (NEAT).
38
golinear - liblinear bindings for Go.
27
goscore - Go Scoring API for PMML.
26
fonet - A Deep Neural Network library written in Go.
22
godist - Various probability distributions, and associated methods.
21
Varis - Golang Neural Network.
18
go-cluster - Go implementation of the k-modes and k-prototypes clustering algorithms.
9
probab - Probability distribution functions. Bayesian inference. Written in pure Go.
5
evoli - Genetic Algorithm and Particle Swarm Optimization library.
5
GoMind - A simplistic Neural Network Library in Go.
4
mlgo - This project aims to provide minimalistic machine learning algorithms in Go.

Messaging

4006
sarama - Go library for Apache Kafka.
3384
Centrifugo - Real-time messaging (Websockets or SockJS) server in Go.
3323
gorush - Push notification server using APNs2 and google GCM.
2991
machinery - Asynchronous task queue/job queue based on distributed message passing.
2648
go-socket.io - socket.io library for golang, a realtime application framework.
2158
NATS Go Client - Lightweight and high performance publish-subscribe and distributed queueing messaging system - this is the Go library.
1947
APNs2 - HTTP/2 Apple Push Notification provider for Go — Send push notifications to iOS, tvOS, Safari and OSX apps.
1775
gopush-cluster - gopush-cluster is a go push server cluster.
1742
Benthos - A message streaming bridge between a range of protocols.
1521
mangos - Pure go implementation of the Nanomsg ("Scalable Protocols") with transport interoperability.
1341
melody - Minimalist framework for dealing with websocket sessions, includes broadcasting and automatic ping/pong handling.
1336
go-nsq - the official Go package for NSQ.
1147
Mercure - Server and library to dispatch server-sent updates using the Mercure protocol (built on top of Server-Sent Events).
1063
Uniqush-Push - Redis backed unified push service for server-side notifications to mobile devices.
734
zmq4 - Go interface to ZeroMQ version 4. Also available for version 3 and version 2.
658
Gollum - A n:m multiplexer that gathers messages from different sources and broadcasts them to a set of destinations.
491
EventBus - The lightweight event bus with async compatibility.
402
golongpoll - HTTP longpoll server library that makes web pub-sub simple.
323
dbus - Native Go bindings for D-Bus.
297
Glue - Robust Go and Javascript Socket Library (Alternative to Socket.io).
288
emitter - Emits events using Go way, with wildcard, predicates, cancellation possibilities and many other good wins.
251
pubsub - Simple pubsub package for go.
133
guble - Messaging server using push notifications (Google Firebase Cloud Messaging, Apple Push Notification services, SMS) as well as websockets, a REST API, featuring distributed operation and message-persistence.
94
oplog - Generic oplog/replication system for REST APIs.
58
rabtap - RabbitMQ swiss army knife cli app.
57
drone-line - Sending Line notifications using a binary, docker or Drone CI.
56
rabbus - A tiny wrapper over amqp exchanges and queues.
52
RapidMQ - RapidMQ is a lightweight and reliable library for managing of the local messages queue.
47
nsq-event-bus - A tiny wrapper around NSQ topic and channel.
44
go-notify - Native implementation of the freedesktop notification spec.
35
goose - Server Sent Events in Go.
34
messagebus - messagebus is a Go simple async message bus, perfect for using as event bus when doing event sourcing, CQRS, DDD.
21
event - Implementation of the pattern observer.
20
hub - A Message/Event Hub for Go applications, using publish/subscribe pattern with support for alias like rabbitMQ exchanges.
11
go-vitotrol - Client library to Viessmann Vitotrol web service.
7
gaurun-client - Gaurun Client written in Go.
5
jazz - A simple RabbitMQ abstraction layer for queue administration and publishing and consuming of messages.
rmqconn - RabbitMQ Reconnection. Wrapper over amqp.Connection and amqp.Dial. Allowing to do a reconnection when the connection is broken before forcing the call to the Close () method to be closed.

Microsoft Excel

3418
excelize - Golang library for reading and writing Microsoft Excel™ (XLSX) files.
3046
xlsx - Library to simplify reading the XML format used by recent version of Microsoft Excel in Go programs.
35
xlsx - Fast and safe way to read/update your existing Microsoft Excel files in Go programs.
34
go-excel - A simple and light reader to read a relate-db-like excel as a table.
11
goxlsxwriter - Golang bindings for libxlsxwriter for writing XLSX (Microsoft Excel) files.

Dependency Injection

636
dig - A reflection based dependency injection toolkit for Go.
524
fx - A dependency injection based application framework for Go (built on top of dig).
31
alice - Additive dependency injection container for Golang.
13
wire - Strict Runtime Dependency Injection for Golang.

Strings

3468
gopsutil - Cross-platform library for retrieving process and system utilization(CPU, Memory, Disks, etc).
2118
archiver - Library and command for making and extracting .zip and .tar.gz archives.
1200
gosms - Your own local SMS gateway in Go that can be used to send SMS.
770
go-resiliency - Resiliency patterns for golang.
597
go-commons-pool - Generic object pool for Golang.
556
xstrings - Collection of useful string functions ported from other languages.
497
base64Captcha - Base64captch supports digit, number, alphabet, arithmetic, audio and digit-alphabet captcha.
407
shortid - Distributed generation of super short, unique, non-sequential, URL friendly IDs.
362
llvm - Library for interacting with LLVM IR in pure Go.
346
health - Easy to use, extensible health check library.
337
gofakeit - Random data generator written in go.
335
conv - Package conv provides fast and intuitive conversions across Go types.
205
banner - Add beautiful banners into your Go applications.
196
gountries - Package that exposes country and subdivision data.
123
antch - A fast, powerful and extensible web crawling & scraping framework.
121
battery - Cross-platform, normalized battery information library.
115
stats - Monitors Go MemStats + System stats such as Memory, Swap and CPU and sends via UDP anywhere you want for logging etc...
110
ffmt - Beautify data display for Humans.
96
lk - A simple licensing library for golang.
82
bitio - Highly optimized bit-level Reader and Writer for Go.
70
turtle - Emojis for Go.
64
healthcheck - An opinionated and concurrent health-check HTTP handler for RESTful services.
61
go-unarr - Decompression library for RAR, TAR, ZIP and 7z archives.
61
gommit - Analyze git commit messages to ensure they follow defined patterns.
47
strutil - String utilities.
47
indigo - Distributed unique ID generator of using Sonyflake and encoded by Base58.
47
morse - Library to convert to and from morse code.
36
xkg - X Keyboard Grabber.
35
captcha - Package captcha provides an easy to use, unopinionated API for captcha generation.
29
persian - Some utilities for Persian language in go.
26
datacounter - Go counters for readers/writer/http.ResponseWriter.
22
autoflags - Go package to automatically define command line flags from struct fields.
22
pdfgen - HTTP service to generate PDF from Json requests.
18
ghorg - Clone all repos from a GitHub org into a single directory.
15
xdg - FreeDesktop.org (xdg) Specs implemented in Go.
13
gosh - Provide Go Statistics Handler, Struct, Measure Method.
12
url-shortener - A modern, powerful, and robust URL shortener microservice with mysql support.
9
anagent - Minimalistic, pluggable Golang evloop/timer handler with dependency-injection.
8
avgRating - Calculate average score and rating based on Wilson Score Equation.
8
sandid - Every grain of sand on earth has its own ID.
7
hostutils - A golang library for packing and unpacking FQDNs list.
5
shellwords - A Golang library to manipulate strings according to the word parsing rules of the UNIX Bourne shell.
go-openapi - Collection of packages to parse and utilize open-api schemas.
VarHandler - Generate boilerplate http input and output handling.

Natural Language Processing

1937
prose - Library for text processing that supports tokenization, part-of-speech tagging, named-entity extraction, and more.
922
gse - Go efficient text segmentation; support english, chinese, japanese and other.
910
when - Natural EN and RU language date/time parser with pluggable rules.
865
go-i18n - Package and an accompanying tool to work with localized text.
728
gojieba - This is a Go implementation of jieba which a Chinese word splitting algorithm.
456
go-pinyin - CN Hanzi to Hanyu Pinyin converter.
358
kagome - JP morphological analyzer written in pure Go.
350
nlp - Extract values from strings and fill your structs with nlp.
321
whatlanggo - Natural language detection package for Go. Supports 84 languages and 24 scripts (writing systems e.g. Latin, Cyrillic, etc).
252
sentences - Sentence tokenizer: converts text into a list of sentences.
190
nlp - Go Natural Language Processing library supporting LSA (Latent Semantic Analysis).
78
go-nlp - Utilities for working with discrete probability distributions and other tools useful for doing NLP work.
63
gounidecode - Unicode transliterator (also known as unidecode) for Go.
60
textcat - Go package for n-gram based text categorization, with support for utf-8 and raw text.
58
MMSEGO - This is a GO implementation of MMSEG which a Chinese word splitting algorithm.
56
getlang - Fast natural language detection package.
51
go-stem - Implementation of the porter stemming algorithm.
45
go-unidecode - ASCII transliterations of Unicode text.
44
segment - Go library for performing Unicode Text Segmentation as described in Unicode Standard Annex #29
43
stemmer - Stemmer packages for Go programming language. Includes English and German stemmers.
33
porter2 - Really fast Porter 2 stemmer.
30
go2vec - Reader and utility functions for word2vec embeddings.
24
paicehusk - Golang implementation of the Paice/Husk Stemming Algorithm.
23
snowball - Snowball stemmer port (cgo wrapper) for Go. Provides word stem extraction functionality Snowball native.
21
go-mystem - CGo bindings to Yandex.Mystem - russian morphology analyzer.
20
petrovich - Petrovich is the library which inflects Russian names to given grammatical case.
18
icu - Cgo binding for icu4c C library detection and conversion functions. Guaranteed compatibility with version 50.1.
15
golibstemmer - Go bindings for the snowball libstemmer library including porter 2.
10
libtextcat - Cgo binding for libtextcat C library. Guaranteed compatibility with version 2.2.
10
shamoji - The shamoji is word filtering package written in Go.
8
porter - This is a fairly straightforward port of Martin Porter's C implementation of the Porter stemming algorithm.
4
go-eco - Similarity, dissimilarity and distance matrices; diversity, equitability and inequality measures; species richness estimators; coenocline models.
4
gotokenizer - A tokenizer based on the dictionary and Bigram language models for Golang. (Now only support chinese segmentation)
RAKE.go - Go port of the Rapid Automatic Keyword Extraction Algorithm (RAKE).

Networking

9888
kcptun - Extremely simple & fast udp tunnel based on KCP protocol.
8262
fasthttp - Package fasthttp is a fast HTTP implementation for Go, up to 10 times faster than net/http.
3496
dns - Go library for working with DNS.
3309
HTTPLab - HTTPLabs let you inspect HTTP requests and forge responses.
2558
gopacket - Go library for packet processing with libpcap bindings.
2484
quic-go - An implementation of the QUIC protocol in pure Go.
1936
kcp-go - KCP - Fast and Reliable ARQ Protocol.
1565
gobgp - BGP implemented in the Go Programming Language.
1324
webrtc - A pure Go implementation of the WebRTC API.
985
ssh - Higher-level API for building SSH servers (wraps crypto/ssh).
761
water - Simple TUN/TAP library.
659
fortio - Load testing library and command line tool, advanced echo server and web UI. Allows to specify a set query-per-second load and record latency histograms and other useful stats and graph them. Tcp, Http, gRPC.
658
sftp - Package sftp implements the SSH File Transfer Protocol as described in https://filezilla-project.org/specs/draft-ietf-secsh-filexfer-02.txt.
634
go-getter - Go library for downloading files or directories from various sources using a URL.
584
NFF-Go - Framework for rapid development of performant network functions for cloud and bare-metal (former YANFF).
501
mdns - Simple mDNS (Multicast DNS) client/server library in Golang.
479
lhttp - Powerful websocket framework, build your IM server more easily.
472
grab - Go package for managing file downloads.
447
ftp - Package ftp implements a FTP client as described in RFC 959.
399
gosnmp - Native Go library for performing SNMP actions.
390
gotcp - Go package for quickly writing tcp applications.
352
cidranger - Fast IP to CIDR lookup for Go.
339
gopcap - Go wrapper for libpcap.
336
peerdiscovery - Pure Go library for cross-platform local peer discovery using UDP multicast.
297
go-stun - Go implementation of the STUN client (RFC 3489 and RFC 5389).
258
raw - Package raw enables reading and writing data at the device driver level for a network interface.
252
tcp_server - Go library for building tcp servers faster.
217
buffstreams - Streaming protocolbuffer data over TCP made easy.
196
winrm - Go WinRM client to remotely execute commands on Windows machines.
176
arp - Package arp implements the ARP protocol, as described in RFC 826.
170
ethernet - Package ethernet implements marshaling and unmarshaling of IEEE 802.3 Ethernet II frames and IEEE 802.1Q VLAN tags.
147
utp - Go uTP micro transport protocol implementation.
127
canopus - CoAP Client/Server implementation (RFC 7252).
110
sslb - It's a Super Simples Load Balancer, just a little project to achieve some kind of performance.
108
jazigo - Jazigo is a tool written in Go for retrieving configuration for multiple network devices.
84
gNxI - A collection of tools for Network Management that use the gNMI and gNOI protocols.
71
xtcp - TCP Server Framework with simultaneous full duplex communication,graceful shutdown,custom protocol.
58
ether - Cross-platform Go package for sending and receiving ethernet frames.
55
dhcp6 - Package dhcp6 implements a DHCPv6 server, as described in RFC 3315.
41
gmqtt - Gmqtt is a flexible, high-performance MQTT broker library that fully implements the MQTT protocol V3.1.1.
40
linkio - Network link speed simulation for Reader/Writer interfaces.
40
portproxy - Simple TCP proxy which adds CORS support to API's which don't support it.
23
graval - Experimental FTP server framework.
17
publicip - Package publicip returns your public facing IPv4 address (internet egress).
14
golibwireshark - Package golibwireshark use libwireshark library to decode pcap file and analyse dissection data.
12
packet - Send packets over TCP and UDP. It can buffer messages and hot-swap connections if needed.
8
goshark - Package goshark use tshark to decode IP packet and create data struct to analyse packet.
7
llb - It's a very simple but quick backend for proxy servers. Can be useful for fast redirection to predefined domain with zero memory allocation and fast response.
5
tspool - A TCP Library use worker pool to improve performance and protect your server.
mqttPaho - The Paho Go Client provides an MQTT client library for connection to MQTT brokers via TCP, TLS or WebSockets.
stun - Go implementation of RFC 5389 STUN protocol.

HTTP Clients

1305
grequests - A Go "clone" of the great and famous Requests library.
833
heimdall - An enchanced http client with retry and hystrix capabilities.
802
sling - Sling is a Go HTTP client library for creating and sending API requests.
613
gentleman - Full-featured plugin-driven HTTP client library.
303
pester - Go HTTP client calls with retries, backoff, and concurrency.
93
goreq - Enhanced simplified HTTP client based on gorequest.
25
rq - A nicer interface for golang stdlib HTTP client.

OpenGL

608
glfw - Go bindings for GLFW 3.
583
gl - Go bindings for OpenGL (generated via glow).
273
mathgl - Pure Go math package specialized for 3D math, with inspiration from GLM.
130
goxjs/gl - Go cross-platform OpenGL bindings (OS X, Linux, Windows, browsers, iOS, Android).
59
goxjs/glfw - Go cross-platform glfw library for creating an OpenGL context and receiving events.

ORM

12613
GORM - The fantastic ORM library for Golang, aims to be developer friendly.
4520
Xorm - Simple and powerful ORM for Go.
2980
gorp - Go Relational Persistence, ORM-ish library for Go.
2485
go-pg - PostgreSQL ORM with focus on PostgreSQL specific features and performance.
1961
SQLBoiler - ORM generator. Generate a featureful and blazing-fast ORM tailored to your database schema.
1671
upper.io/db - Single interface for interacting with different data sources through the use of adapters that wrap mature database drivers.
741
reform - Better ORM for Go, based on non-empty interfaces and code generation.
589
pop/soda - Database migration, creation, ORM, etc... for MySQL, PostgreSQL, and SQLite.
525
QBS - Stands for Query By Struct. A Go ORM.
404
go-queryset - 100% type-safe ORM with code generation and MySQL, PostgreSQL, Sqlite3, SQL Server support based on GORM.
230
Zoom - Blazing-fast datastore and querying engine built on Redis.
105
grimoire - Grimoire is a database access layer and validation for golang. (Support: MySQL, PostgreSQL and SQLite3).
103
go-sqlbuilder - A flexible and powerful SQL string builder library plus a zero-config ORM.
92
go-store - Simple and fast Redis backed key-value store library for Go.
62
gomodel - Lightweight, fast, orm-like library helps interactive with database.
52
Marlow - Generated ORM from project structs for compile time safety assurances.
4
lore - Simple and lightweight pseudo-ORM/pseudo-struct-mapping environment for Go.
beego orm - Powerful orm framework for go. Support: pq/mysql/sqlite3.

Package Management

11739
dep - Go dependency tool.
7529
glide - Manage your golang vendor and vendored packages with ease. Inspired by tools like Maven, Bundler, and Pip.
5605
godep - dependency tool for go, godep helps build packages reproducibly by fixing their dependencies.
4391
govendor - Go Package Manager. Go vendor tool that works with the standard vendor file.
2168
gopm - Go Package Manager.
1346
gom - Go Manager - bundle for go.
1202
gpm - Barebones dependency manager for Go.
773
goop - Simple dependency manager for Go (golang), inspired by Bundler.
248
nut - Vendor Go dependencies.
213
johnny-deps - Minimal dependency version using Git.
196
gigo - PIP-like dependency tool for golang, with support for private repositories and hashes.
115
VenGO - create and manage exportable isolated go virtual environments.
77
mvn-golang - plugin that provides way for auto-loading of Golang SDK, dependency management and start build environment in Maven project infrastructure.
50
gop - Build and manage your Go applications out of GOPATH.
vgo - Versioned Go.

Query Language

4509
graphql-go - Implementation of GraphQL for Go.
2472
graphql - GraphQL server with a focus on ease of use.
740
gojsonq - A simple Go package to Query over JSON Data.
196
jsonql - JSON query expression library in Golang.
89
rql - Resource Query Language for REST API.
50
graphql - graphql parser + utilities.
16
jsonslice - Jsonpath queries with advanced filters.

Resource Embedding

1781
statik - Embeds static files into a Go executable.
1727
packr - The simple and easy way to embed static files into Go binaries.
1519
go.rice - go.rice is a Go package that makes working with resources such as html,js,css,images and templates very easy.
503
vfsgen - Generates a vfsdata.go file that statically implements the given virtual filesystem.
412
esc - Embeds files into Go programs and provides http.FileSystem interfaces to them.
389
fileb0x - Simple tool to embed files in go with focus on "customization" and ease to use.
148
go-resources - Unfancy resources embedding with Go.
51
statics - Embeds static resources into go files for single binary compilation + works with http.FileSystem + symlinks.
15
templify - Embed external template files into Go code to create single file binaries.
13
go-embed - Generates go code to embed resource files into your library or executable.

Science and Data Analysis

2484
gonum - Gonum is a set of numeric libraries for the Go programming language. It contains libraries for matrices, statistics, optimization, and more.
1312
streamtools - general purpose, graphical tool for dealing with streams of data.
1258
stats - Statistics package with common functions missing from the Golang standard library.
1240
gosl - Go scientific library for linear algebra, FFT, geometry, NURBS, numerical methods, probabilities, optimisation, differential equations, and more.
1079
gonum/plot - gonum/plot provides an API for building and drawing plots in Go.
604
go-dsp - Digital Signal Processing for Go.
575
goraph - Pure Go graph theory library(data structure, algorith visualization).
546
chart - Simple Chart Plotting library for Go. Supports many graphs types.
255
ewma - Exponentially-weighted moving averages.
191
graph - Library of basic graph algorithms.
121
orb - 2D geometry types with clipping, GeoJSON and Mapbox Vector Tile support.
119
gohistogram - Approximate histograms for data streams.
59
TextRank - TextRank implementation in Golang with extendable features (summarization, weighting, phrase extraction) and multithreading (goroutine) support.
55
sparse - Go Sparse matrix formats for linear algebra supporting scientific and machine learning applications, compatible with gonum matrix libraries.
42
pagerank - Weighted PageRank algorithm implemented in Go.
40
geom - 2D geometry for golang.
38
evaler - Simple floating point arithmetic expression evaluator.
35
dataframe-go - Dataframes for Go for machine-learning and statistics (similar to pandas).
12
goent - GO Implementation of Entropy Measures.
11
go-fn - Mathematical functions written in Go language, that are not covered by math pkg.
9
ode - Ordinary differential equation (ODE) solver which supports extended states and channel-based iteration stop conditions.
8
GoStats - GoStats is an Open Source GoLang library for math statistics mostly used in Machine Learning domains, it covers most of the Statistical measures functions.
7
triangolatte - 2D triangulation library. Allows translating lines and polygons (both based on points) to the language of GPUs.
6
PiHex - Implementation of the "Bailey-Borwein-Plouffe" algorithm for the hexadecimal number Pi.
5
go-gt - Graph theory algorithms written in "Go" language.
5
gocomplex - Complex number library for the Go programming language.
5
piecewiselinear - Tiny linear interpolation library.
3
rootfinding - root-finding algorithms library for finding roots of quadratic functions.

Security

3203
lego - Pure Go ACME client library and CLI tool (for use with Let's Encrypt).
1660
acmetool - ACME (Let's Encrypt) client tool with automatic renewal.
1626
Cameradar - Tool and library to remotely hack RTSP streams from surveillance cameras.
1122
secure - HTTP middleware for Go that facilitates some quick security wins.
908
memguard - A pure Go library for handling sensitive values in memory.
445
nacl - Go implementation of the NaCL set of API's.
378
acra - Network encryption proxy to protect database-based applications from data leaks: strong selective encryption, SQL injections prevention, intrusion detection system.
237
BadActor - In-memory, application-driven jailer built in the spirit of fail2ban.
214
passlib - Futureproof password hashing library.
189
ssh-vault - encrypt/decrypt using ssh keys.
148
simple-scrypt - Scrypt package with a simple, obvious API and automatic cost calibration built-in.
123
go-yara - Go Bindings for YARA, the "pattern matching swiss knife for malware researchers (and everyone else)".
68
argon2pw - Argon2 password hash generation with constant-time password comparison.
25
goSecretBoxPassword - A probably paranoid package for securely hashing and encrypting passwords.
8
goArgonPass - Argon2 password hash and verification designed to be compatible with existing Python and PHP implementations.
4
jwc - JSON Web Cryptography library.
autocert - Auto provision Let's Encrypt certificates and start a TLS server.

Serialization

4533
jsoniter - High-performance 100% compatible drop-in replacement of "encoding/json".
4222
goprotobuf - Go support, in the form of a library and protocol compiler plugin, for Google's protocol buffers.
2457
gogoprotobuf - Protocol Buffers for Go with Gadgets.
2075
mapstructure - Go library for decoding generic map values into native Go structures.
1129
go-codec - High Performance, feature-Rich, idiomatic encode, decode and rpc library for msgpack, cbor and json, with runtime-based OR code-generation support.
443
colfer - Code generation for the Colfer binary format.
271
csvutil - High Performance, idiomatic CSV record encoding and decoding to native Go structures.
270
go-capnproto - Cap'n Proto library and parser for go.
115
php_session_decoder - GoLang library for working with PHP session format and PHP Serialize/Unserialize functions.
60
bambam - generator for Cap'n Proto schemas from go.
6
fwencoder - Fixed width file parser (encoding and decoding library) for Go.
1
bel - Generate TypeScript interfaces from Go structs/interfaces. Useful for JSON RPC.
asn1 - Asn.1 BER and DER encoding library for golang.
structomap - Library to easily and dynamically generate maps from static structures.

Server Applications

23572
etcd - Highly-available key value store for shared configuration and service discovery.
21051
Caddy - Caddy is an alternative, HTTP/2 web server that's easy to configure and use.
15148
minio - Minio is a distributed object storage server.
2734
devd - Local webserver for developers.
2717
RoadRunner - High-performance PHP application server, load-balancer and process manager.
684
Fider - Fider is an open platform to collect and organize customer feedback.
641
jackal - An XMPP server written in Go.
575
Flagr - Flagr is an open-source feature flagging and A/B testing service.
535
algernon - HTTP/2 web server with built-in support for Lua, Markdown, GCSS and Amber.
355
discovery - A registry for resilient mid-tier load balancing and failover.
325
flipt - A self contained feature flag solution written in Go and Vue.js
4
nginx-prometheus - Nginx log parser and exporter to Prometheus.
consul - Consul is a tool for service discovery, monitoring and configuration.
nsq - A realtime distributed messaging platform.
yakvs - Small, networked, in-memory key-value store.

Template Engines

2776
gofpdf - PDF document generator with high level support for text, drawing and images.
1400
pongo2 - Django-like template-engine for Go.
1251
quicktemplate - Fast, powerful, yet easy to use template engine. Converts templates into Go code and then compiles it.
1142
hero - Hero is a handy, fast and powerful go template engine.
956
mustache - Go implementation of the Mustache template language.
805
amber - Amber is an elegant templating engine for Go Programming Language It is inspired from HAML and Jade.
753
ace - Ace is an HTML template engine for Go, inspired by Slim and Jade. Ace is a refinement of Gold.
649
Razor - Razor view engine for Golang.
549
jet - Jet template engine.
402
ego - Lightweight templating language that lets you write templates in Go. Templates are translated into Go and compiled.
314
raymond - Complete handlebars implementation in Go.
255
fasttemplate - Simple and fast template engine. Substitutes template placeholders up to 10x faster than text/template.
140
Soy - Closure templates (aka Soy templates) for Go, following the official spec.
77
liquid - Go implementation of Shopify Liquid templates.
70
kasia.go - Templating system for HTML and other text documents - go implementation.
63
velvet - Complete handlebars implementation in Go.
20
damsel - Markup language featuring html outlining via css-selectors, extensible via pkg html/template and others.
10
extemplate - Tiny wrapper around html/template to allow for easy file-based template inheritance.

Testing

6982
Testify - Sacred extension to the standard go testing package.
4316
GoConvey - BDD-style framework with web UI and live reload.
2836
chromedp - a way to drive/test Chrome, Safari, Edge, Android Webviews, and other browsers supporting the Chrome Debugging Protocol.
2607
go-fuzz - Randomized testing system.
2226
gomock - Mocking framework for the Go programming language.
1351
go-sqlmock - Mock SQL driver for testing database interactions.
1322
hoverfly - HTTP(S) proxy for recording and simulating REST/SOAP APIs with extensible middleware and easy-to-use CLI.
1044
httpexpect - Concise, declarative, and easy to use end-to-end HTTP and REST API testing.
968
selenoid - alternative Selenium hub server that launches browsers within containers.
824
go-cmp - Package for comparing Go values in tests.
688
gock - Versatile HTTP mocking made easy.
607
baloo - Expressive and versatile end-to-end HTTP API testing made easy.
595
goblin - Mocha like testing framework fo Go.
578
godog - Cucumber or Behat like BDD framework for Go.
478
gofuzz - Library for populating go objects with random values.
321
counterfeiter - Tool for generating self-contained mock objects.
275
go-vcr - Record and replay your HTTP interactions for fast, deterministic and accurate tests.
270
cdp - Type-safe bindings for the Chrome Debugging Protocol that can be used with browsers or other debug targets that implement it.
266
testfixtures - A helper for Rails' like test fixtures to test database applications.
240
frisby - REST API testing framework.
234
gofight - API Handler Testing for Golang Router framework.
226
go-mutesting - Mutation testing for Go source code.
202
Tavor - Generic fuzzing and delta-debugging framework.
192
ggr - a lightweight server that routes and proxies Selenium Wedriver requests to multiple Selenium hubs.
190
go-carpet - Tool for viewing test coverage in terminal.
185
charlatan - Tool to generate fake interface implementations for tests.
164
minimock - Mock generator for Go interfaces.
125
go-txdb - Single transaction based database driver mainly for testing purposes.
110
GoSpec - BDD-style testing framework for the Go programming language.
87
gotest.tools - A collection of packages to augment the go testing package and support common patterns.
74
endly - Declarative end to end functional testing.
68
cupaloy - Simple snapshot testing addon for your test framework.
68
govcr - HTTP mock for Golang: record and replay HTTP interactions for offline testing.
62
dbcleaner - Clean database for testing purpose, inspired by database_cleaner in Ruby.
56
wstest - Websocket client for unit-testing a websocket http.Handler.
50
gospecify - This provides a BDD syntax for testing your Go code. It should be familiar to anybody who has used libraries such as rspec.
49
restit - Go micro framework to help writing RESTful API integration test.
43
go-testdeep - Extremely flexible golang deep comparison, extends the go testing package.
27
gomatch - library created for testing JSON against patterns.
26
Hamcrest - fluent framework for declarative Matcher objects that, when applied to input values, produce self-describing results.
24
bro - Watch files in directory and run tests for them.
22
dsunit - Datastore testing for SQL, NoSQL, structured files.
22
mockhttp - Mock object for Go http.ResponseWriter.
18
jsonassert - Package for verifying that your JSON payloads are serialized correctly.
12
assert - Basic Assertion Library used along side native go testing, with building blocks for custom assertions.
8
gocrest - Composable hamcrest-like matchers for Go assertions.
8
gosuite - Brings lightweight test suites with setup/teardown facilities to testing by leveraging Go1.7's Subtests.
7
badio - Extensions to Go's testing/iotest package.
7
gogiven - YATSPEC-like BDD testing framework for Go.
6
testsql - Generate test data from SQL files before testing and clear it after finished.
5
biff - Bifurcation testing framework, BDD compatible.
3
Tt - Simple and colorful test tools.
ginkgo - BDD Testing Framework for Go.
gocheck - More advanced testing framework alternative to gotest.
gomega - Rspec like matcher/assertion library.

Text Processing

7127
colly - Fast and Elegant Scraping Framework for Gophers.
6928
GoQuery - GoQuery brings a syntax and a set of features similar to jQuery to the Go language.
3607
blackfriday - Markdown processor in Go.
2491
toml - TOML configuration format (encoder/decoder with reflection).
1739
go-humanize - Formatters for time, numbers, and memory size to human readable format.
1726
sh - Shell parser and formatter.
1118
bluemonday - HTML Sanitizer.
1095
inject - Package inject provides a reflect based injector.
1008
gofeed - Parse RSS and Atom feeds in Go.
532
commonregex - A collection of common regular expressions for Go.
412
xurls - Extract urls from text.
328
slug - URL-friendly slugify with multiple languages support.
314
mxj - Encode / decode XML as JSON or map[string]interface{}; extract values with dot-notation paths and wildcards. Replaces x2j and j2x packages.
249
gographviz - Parses the Graphviz DOT language.
235
dataflowkit - Web scraping Framework to turn websites into structured data.
214
gotext - GNU gettext utilities for Go.
192
gotabulate - Easily pretty-print your tabular data with Go.
188
go-runewidth - Functions to get fixed width of the character or string.
130
goq - Declarative unmarshaling of HTML using struct tags with jQuery syntax (uses GoQuery).
88
htmlquery - An XPath query package for HTML, lets you extract data or evaluate from HTML documents by an XPath expression.
78
go-nmea - NMEA parser library for the Go language.
60
radix - fast string sorting algorithm.
53
sdp - SDP: Session Description Protocol [RFC 4566].
48
genex - Count and expand Regular Expressions into all matching Strings.
46
align - A general purpose application that aligns text.
41
go-zero-width - Zero-width character detection and removal for Go.
41
guesslanguage - Functions to determine the natural language of a unicode text.
34
allot - Placeholder and wildcard text parsing for CLI tools and bots.
33
goregen - Library for generating random strings from regular expressions.
31
editorconfig-core-go - Editorconfig file parser and manipulator for Go.
28
gonameparts - Parses human names into individual name parts.
27
parth - URL path segmentation parsing.
26
go-slugify - Make pretty slug with multiple languages support.
24
Slugify - Go slugify application that handles string.
19
go-vcard - Parse and format vCard.
17
did - DID (Decentralized Identifiers) Parser and Stringer in Go.
15
go-fixedwidth - Fixed-width text formatting (encoder/decoder with reflection).
15
xj2go - Convert xml or json to go struct.
12
gofuckyourself - A sanitization-based swear filter for Go.
9
kace - Common case conversions covering common initialisms.
5
bbConvert - Converts bbCode to HTML that allows you to add support for custom bbCode tags.
5
enca - Minimal cgo bindings for libenca.
4
doi - Document object identifier (doi) parser in Go.
4
syndfeed - A syndication feed for Atom 1.0 and RSS 2.0.
4
parseargs-go - string argument parser that understands quotes and backslashes.
3
encdec - Package provides a generic interface to encoders and decodersa.
github_flavored_markdown - GitHub Flavored Markdown renderer (using blackfriday) with fenced code block highlighting, clickable header anchor links.
gommon/bytes - Format bytes to string.

Third-party APIs

4597
aws-sdk-go - The official AWS SDK for the Go programming language.
4391
github - Go library for accessing the GitHub REST API v3.
2135
slack - Slack API in Go.
1753
google - Auto-generated Google APIs for Go.
1574
google-cloud - Google Cloud APIs Go Client Library.
956
anaconda - Go client library for the Twitter 1.1 API.
849
stripe - Go client for the Stripe API.
820
discordgo - Go bindings for the Discord Chat API.
724
facebook - Go Library that supports the Facebook Graph API.
635
minio-go - Minio Go Library for Amazon S3 compatible cloud storage.
624
go-twitter - Go client library for the Twitter v1.1 APIs.
418
go-jira - Go client library for Atlassian JIRA
410
githubql - Go library for accessing the GitHub GraphQL API v4.
283
geo-golang - Go Library to access Google Maps, MapQuest, Nominatim, OpenCage, Bing, Mapbox, and OpenStreetMap geocoding / reverse geocoding APIs.
282
webhooks - Webhook receiver for GitHub and Bitbucket.
270
paypal - Wrapper for PayPal payment API.
185
go-marathon - Go library for interacting with Mesosphere's Marathon PAAS.
156
ethrpc - Go bindings for Ethereum JSON RPC API.
117
gostorm - GoStorm is a Go library that implements the communications protocol required to write Storm spouts and Bolts in Go that communicate with the Storm shells.
112
hipchat (xmpp) - A golang package to communicate with HipChat over XMPP.
109
hipchat - This project implements a golang client library for the Hipchat API.
108
Medium - Golang SDK for Medium's OAuth2 API.
95
go-trending - Go library for accessing trending repositories and developers at Github.
92
Trello - Go wrapper for the Trello API.
56
clarifai - Go client library for interfacing with the Clarifai API.
56
megos - Client library for accessing an Apache Mesos cluster.
53
pushover - Go wrapper for the Pushover API.
50
igdb - Go client for the Internet Game Database API.
41
gads - Google Adwords Unofficial API.
37
go-xkcd - Go client for the xkcd API.
36
circleci - Go client library for interacting with CircleCI's API.
34
GoMusicBrainz - Go MusicBrainz WS2 client library.
32
fcm - Go library for Firebase Cloud Messaging.
31
wit-go - Go client for wit.ai HTTP API.
29
gcm - Go library for Google Cloud Messaging.
28
golyrics - Golyrics is a Go library to fetch music lyrics data from the Wikia website.
28
mixpanel - Mixpanel is a library for tracking events and sending Mixpanel profile updates to Mixpanel from your go applications.
28
uptimerobot - Go wrapper and command-line client for the Uptime Robot v2 API.
26
gami - Go library for Asterisk Manager Interface.
26
translate - Go online translation package.
19
go-unsplash - Go client library for the Unsplash.com API.
19
shopify - Go Library to make CRUD request to the Shopify API.
16
go-myanimelist - Go client library for accessing the MyAnimeList API.
16
spotify - Go Library to access Spotify WEB API.
15
brewerydb - Go library for accessing the BreweryDB API.
15
go-twitch - Go client for interacting with the Twitch v3 API.
15
patreon-go - Go library for Patreon API.
14
codeship-go - Go client library for interacting with Codeship's API v2.
13
steam - Go Library to interact with Steam game servers.
11
go-imgur - Go client library for imgur
11
google-analytics - Simple wrapper for easy google analytics reporting.
11
TheMovieDb - Simple golang package to communicate with themoviedb.org.
9
go-hacknews - Tiny Go client for HackerNews API.
9
simples3 - Simple no frills AWS S3 Library using REST with V4 Signing written in Go.
9
smite - Go package to wraps access to the Smite game API.
8
coinpaprika-go - Go client library for interacting with Coinpaprika's API.
8
go-sptrans - Go client library for the SPTrans Olho Vivo API.
8
rrdaclient - Go Library to access statdns.com API, which is in turn RRDA API. DNS Queries over HTTP.
7
ynab - Go wrapper for the YNAB API.
6
tumblr - Go wrapper for the Tumblr v2 API.
5
zooz - Go client for the Zooz API.
4
go-sophos - Go client library for the Sophos UTM REST API with zero dependencies.
3
go-chronos - Go library for interacting with the Chronos Job Scheduler
1
playlyfe - The Playlyfe Rest API Go SDK.
go-telegraph - Telegraph publishing platform API client.
textbelt - Go client for the textbelt.com txt messaging API.

Utilities

20272
fzf - Command-line fuzzy finder written in Go.
15048
hub - wrap git commands with additional functionality to interact with github from the terminal.
10810
delve - Go debugger.
8182
ctop - Top-like interface (e.g. htop) for container metrics.
7994
wuzz - Interactive cli tool for HTTP inspection.
5876
sqlx - provides a set of extensions on top of the excellent built-in database/sql package.
5212
peco - Simplistic interactive filtering tool.
4554
usql - usql is a universal command-line interface for SQL databases.
3852
goreleaser - Deliver Go binaries as fast and easily as possible.
3655
godropbox - Common libraries for writing Go services/applications from Dropbox.
3554
go-torch - Stochastic flame graph profiler for Go programs.
2342
goreporter - Golang tool that does static analysis, unit testing, code review and generate code quality report.
1835
panicparse - Groups similar goroutines and colorizes stack dump.
1721
Task - simple "Make" alternative.
1706
minify - Fast minifiers for HTML, CSS, JS, XML, JSON and SVG file formats.
1682
hystrix-go - Implements Hystrix patterns of programmer-defined fallbacks aka circuit breaker.
1614
resty - Simple HTTP and REST client for Go inspired by Ruby rest-client.
1439
mmake - Modern Make.
1265
Storm - Simple and powerful toolkit for BoltDB.
1244
mole - cli app to easily create ssh tunnels.
949
mc - Minio Client provides minimal tools to work with Amazon S3 compatible cloud storage and filesystems.
895
profile - Simple profiling support package for Go.
862
boilr - Blazingly fast CLI tool for creating projects from boilerplate templates.
856
filetype - Small package to infer the file type checking the magic numbers signature.
739
go-funk - Modern Go utility library which provides helpers (map, find, contains, filter, chunk, reverse, ...).
734
circuitbreaker - Circuit Breakers in Go.
724
mergo - Helper to merge structs and maps in Golang. Useful for configuration default values, avoiding messy if-statements.
682
spinner - Go package to easily provide a terminal spinner with options.
676
git-time-metric - Simple, seamless, lightweight time tracking for Git.
591
jump - Jump helps you navigate faster by learning your habits.
586
immortal - *nix cross-platform (OS agnostic) supervisor.
473
htcat - Parallel and Pipelined HTTP GET Utility.
419
gopencils - Small and simple package to easily consume REST APIs.
418
go-dry - DRY (don't repeat yourself) package for Go.
387
godaemon - Utility to write daemons.
339
request - Go HTTP Requests for Humans™.
279
ergo - The management of multiple local services running over different ports made easy.
277
go-rate - Timed rate limiter for Go.
263
circuit - An efficient and feature complete Hystrix like Go implementation of the circuit breaker pattern.
248
gohper - Various tools/modules help for development.
234
koazee - Library inspired in Lazy evaluation and functional programming that takes the hassle out of working with arrays.
197
clockwork - A simple fake clock for golang.
190
Deepcopier - Simple struct copying for Go.
179
serve - A static http server anywhere you need.
168
go-trigger - Go-lang global event triggerer, Register Events with an id and trigger the event from anywhere from your project.
157
go-bind-plugin - go:generate tool for wrapping symbols exported by golang plugins (1.8 only).
151
rerun - Recompiling and rerunning go apps when source changes.
148
moldova - Utility for generating random data based on an input template.
130
robustly - Runs functions resiliently, catching and restarting panics.
125
gotenv - Load environment variables from .env or any io.Reader in Go.
122
Death - Managing go application shutdown with signals.
120
apm - Process manager for Golang applications with an HTTP API.
110
util - Collection of useful utility functions. (strings, concurrency, manipulations, ...).
105
gubrak - Golang utility library with syntactic sugar. It's like lodash, but for golang.
103
chyle - Changelog generator using a git repository with multiple configuration possibilities.
103
retry - Functional mechanism based on context to perform actions repetitively until successful.
99
go-sitemap-generator - XML Sitemap generator written in Go.
98
lrserver - LiveReload server for Go.
87
onecache - Caching library with support for multiple backend stores (Redis, Memcached, filesystem etc).
67
pm - Process (i.e. goroutine) manager with an HTTP API.
67
toolbox - Slice, map, multimap, struct, function, data conversion utilities. Service router, macro evaluator, tokenizer.
67
UNIS - Common Architecture™ for String Utilities in Go.
65
xferspdy - Xferspdy provides binary diff and patch library in golang.
64
netbug - Easy remote profiling of your services.
63
mimetype - Package for MIME type detection based on magic numbers.
61
go-bsdiff - Pure Go bsdiff and bspatch libraries and CLI tools.
60
go-health - Health package simplifies the way you add health check to your services.
58
multitick - Multiplexor for aligned tickers.
53
mssqlx - Database client library, proxy for any master slave, master master structures. Lightweight and auto balancing in mind.
53
repeat - Go implementation of different backoff strategies useful for retrying operations and heartbeating.
50
abutil - Collection of often-used Golang helpers.
48
minquery - MongoDB / mgo.v2 query that supports efficient pagination (cursors to continue listing documents where we left off).
43
go-astitodo - Parse TODOs in your GO code.
42
golog - Easy and lightweight CLI tool to time track your tasks.
40
handy - Many utilities and helpers like string handlers/formatters and validators.
39
goback - Go simple exponential backoff package.
39
mimemagic - Pure Go ultra performant MIME sniffing library/utility.
37
intrinsic - Use x86 SIMD without writing any assembly code.
35
copy-pasta - Universal multi-workstation clipboard that uses S3 like backend for the storage.
34
gaper - Builds and restarts a Go project when it crashes or some watched file changes.
33
golarm - Fire alarms with system events.
33
retry - Simple and easy retry mechanism package for Go.
30
myhttp - Simple API to make HTTP GET requests with timeout support.
25
gpath - Library to simplify access struct fields with Go's expression in reflection.
24
rclient - Readable, flexible, simple-to-use client for REST APIs.
24
retry-go - Retrying made simple and easy for golang.
21
goplaceholder - a small golang lib to generate placeholder images.
19
goseaweedfs - SeaweedFS client library with almost full features.
19
ugo - ugo is slice toolbox with concise syntax for Go.
17
generate - runs go generate recursively on a specified path or environment variable and can filter by regex.
15
dlog - Compile-time controlled logger to make your release smaller without removing debug calls.
14
evaluator - Evaluate an expression dynamicly based on s-expression. It's simple and easy to extend.
14
filler - small utility to fill structs using "fill" tag.
14
go-httpheader - Go library for encoding structs into Header fields.
13
okrun - go run error steamroller.
13
pgo - Convenient functions for PHP community.
12
gostrutils - Collections of string manipulation and conversion functions.
12
rerate - Redis-based rate counter and rate limiter for Go.
12
structs - Implement simple functions to manipulate structs.
11
fastlz - Wrap over FastLz (free, open-source, portable real-time compression library) for GoLang.
9
command - Command pattern for Go with thread safe serial and parallel dispatcher.
9
filter - provide filtering, sanitizing, and conversion of Go data.
8
retry - A pretty simple library to ensure your work to be done.
7
backscanner - A scanner similar to bufio.Scanner, but it reads and returns lines in reverse order, starting at a given position and going backward.
6
ghokin - Parallelized formatter with no external dependencies for gherkin (cucumber, behat...).
4
mimesniffer - A MIME type sniffer for Go.
4
silk - Read silk netflow files.
2
retry - A simple but highly configurable retry package for Go.
2
sliceconv - Slice conversion between primitive types.
2
sslice - Create a slice which is always sorted.
1
blank - Verify or remove blanks and whitespace from strings.
1
ctxutil - A collection of utility functions for contexts.
1
olaf - Twitter Snowflake implemented in Go.
1
slicer - Makes working with slices easier.
realize - Go build system with file watchers and live reload. Run, build and watch file changes with custom paths.

UUID

450
uuid - Implementation of Universally Unique Identifier (UUID). Supports both creation and parsing of UUIDs. Actively maintained fork of satori uuid.
239
wuid - An extremely fast unique number generator, 10-135 times faster than UUID.
18
goid - Generate and Parse RFC4122 compliant V4 UUIDs.
9
uuid - Generate, encode, and decode UUIDs v1 with fast or cryptographic-quality random node identifier.

Validation

3216
govalidator - Validators and sanitizers for strings, numerics, slices and structs.
2807
validator - Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving.
920
ozzo-validation - Supports validation of various data types (structs, strings, maps, slices, etc.) with configurable and extensible validation rules specified in usual code constructs instead of struct tags.
574
govalidator - Validate Golang request data with simple rules. Highly inspired by Laravel's request validation.
43
validate - Go package for data validation and filtering. support validate Map, Struct, Request(Form, JSON, url.Values, Uploaded Files) data and more features.
13
validate - This package provides a framework for writing validations for Go applications.

Version Control

1287
git2go - Go bindings for libgit2.
67
gh - Scriptable server and net/http middleware for GitHub Webhooks.
66
go-vcs - manipulate and inspect VCS repositories in Go.
12
hgo - Hgo is a collection of Go packages providing read-access to local Mercurial repositories.

Video

630
goav - Comphrensive Go bindings for FFmpeg.
461
gmf - Go bindings for FFmpeg av* libraries.
232
go-astits - Parse and demux MPEG Transport Streams (.ts) natively in GO.
152
go-astisub - Manipulate subtitles in GO (.srt, .stl, .ttml, .webvtt, .ssa/.ass, teletext, .smi, etc.).
148
gst - Go bindings for GStreamer.
41
libvlc-go - Go bindings for libvlc 2.X/3.X/4.X (used by the VLC media player).
27
go-m3u8 - Parser and generator library for Apple m3u8 playlists.
24
v4l - Video capture library for Linux, written in Go.
11
libgosubs - Subtitle format support for go. Supports .srt, .ttml, and .ass.

Web Frameworks

25267
Gin - Gin is a web framework written in Go! It features a martini-like API with much better performance, up to 40 times faster. If you need performance and good productivity.
19354
Beego - beego is an open-source, high-performance web framework for the Go programming language.
13199
Echo - High performance, minimalist Go web framework.
10839
Revel - High-productivity web framework for the Go language.
3314
goa - Framework for developing microservices based on the design of Ruby's Praxis.
3264
go-json-rest - Quick and easy way to setup a RESTful JSON API.
2693
Macaron - Macaron is a high productive and modular design web framework in Go.
2583
Gizmo - Microservice toolkit used by the New York Times.
2125
utron - Lightweight MVC framework for Go(Golang).
993
tigertonic - Go framework for building JSON web services inspired by Dropwizard.
782
tango - Micro & pluggable web framework for Go.
513
traffic - Sinatra inspired regexp/pattern mux and web framework for Go.
411
gongular - Fast Go web framework with input mapping/validation and (DI) Dependency Injection.
387
neo - Neo is minimal and fast Go Web Framework with extremely simple API.
334
mango - Mango is a modular web-application framework for Go, inspired by Rack, and PEP333.
312
Gondola - The web framework for writing faster sites, faster.
277
Air - An ideally refined web framework for Go.
229
Golf - Golf is a fast, simple and lightweight micro-web framework for Go. It comes with powerful features and has no dependencies other than the Go Standard Library.
151
Gem - Simple and fast web framework, friendly to REST API.
111
go-rest - Small and evil REST framework for Go.
92
Aero - High-performance web framework for Go, reaches top scores in Lighthouse.
66
Golax - A non Sinatra fast HTTP framework with support for Google custom methods, deep interceptors, recursion and more.
65
WebGo - A micro-framework to build web apps; with handler chaining, middleware and context injection. With standard library compliant HTTP handlers(i.e. http.HandlerFunc).
62
hiboot - hiboot is a high performance web application framework with auto configuration and dependency injection support.
51
Microservice - The framework for the creation of microservices, written in Golang.
48
Fireball - More "natural" feeling web framework.
46
YARF - Fast micro-framework designed to build REST APIs and web services in a fast and simple way.
36
uAdmin - Fully featured web framework for Golang, inspired by Django.
29
Resoursea - REST framework for quickly writing resource based services.
24
rex - Rex is a library for modular development built upon gorilla/mux, fully compatible with net/http.
17
vox - A golang web framework for humans, inspired by Koa heavily.
16
nio - Modern, minimal and productive Go HTTP framework.
4
Banjo - Very simple and fast web framework for Go.
2
sawsij - lightweight, open-source web framework for building high-performance, data-driven web applications.
aah - Scalable, performant, rapid development Web framework for Go.
Buffalo - Bringing the productivity of Rails to Go!
REST Layer - Framework to build REST/GraphQL API on top of databases with mostly configuration over code.
Zerver - Zerver is an expressive, modular, feature completed RESTful framework.

Actual middlewares

1098
Tollbooth - Rate limit HTTP request handler.
1060
CORS - Easily add CORS capabilities to your API.
732
go-server-timing - Add/parse Server-Timing header.
500
Limiter - Dead simple rate limit middleware for Go.
81
ln-paywall - Go middleware for monetizing APIs on a per-request basis with the Lightning Network (Bitcoin)
71
XFF - Handle X-Forwarded-For header and friends.
30
formjson - Transparently handle JSON input as a standard form POST.
10
client-timing - An HTTP client for Server-Timing header.

Libraries for creating HTTP middlewares

6113
negroni - Idiomatic HTTP middleware for Golang.
1743
alice - Painless middleware chaining for Go.
1209
render - Go package for easily rendering JSON, XML, and HTML template responses.
523
stats - Go middleware that stores various information about your web application.
288
interpose - Minimalist net/http middleware for golang.
206
muxchain - Lightweight middleware for net/http.
146
renderer - Simple, lightweight and faster response (JSON, JSONP, XML, YAML, HTML, File) rendering package for Go.
91
rye - Tiny Go middleware library (with canned Middlewares) that supports JWT, CORS, Statsd, and Go 1.7 context.
78
gores - Go package that handles HTML, JSON, XML and etc. responses. Useful for RESTful APIs.
63
chain - Handler wrapper chaining with scoped data (net/context-based "middleware").
55
go-wrap - Small middlewares package for net/http.
7
catena - http.Handler wrapper catenation (same API as "chain").

Routers

8811
httprouter - High performance router. Use this and the standard http handlers to form a very high performance web framework.
8362
mux - Powerful URL router and dispatcher for golang.
5195
chi - Small, fast and expressive HTTP router built on net/context.
1365
gocraft/web - Mux and middleware package in Go.
1193
Bone - Lightning Fast HTTP Multiplexer.
716
Goji - Goji is a minimalistic and flexible HTTP request multiplexer with support for net/context.
665
fasthttprouter - High performance router forked from httprouter. The first router fit for fasthttp.
406
xujiajun/gorouter - A simple and fast HTTP router for Go.
374
httptreemux - High-speed, flexible tree-based HTTP router for Go. Inspiration from httprouter.
374
lars - Is a lightweight, fast and extensible zero allocation HTTP router for Go used to create customizable frameworks.
348
Siesta - Composable framework to write middleware and handlers.
336
ozzo-routing - An extremely fast Go (golang) HTTP router that supports regular expression route matching. Comes with full support for building RESTful APIs.
246
vestigo - Performant, stand-alone, HTTP compliant URL Router for go web applications.
155
gowww/router - Lightning fast HTTP router fully compatible with the net/http.Handler interface.
100
alien - Lightweight and fast http router from outer space.
92
violetear - Go HTTP router.
91
Bxog - Simple and fast HTTP router for Go. It works with routes of varying difficulty, length and nesting. And he knows how to create a URL from the received parameters.
87
xmux - High performance muxer based on httprouter with net/context support.
75
pure - Is a lightweight HTTP router that sticks to the std "net/http" implementation.
39
GoRouter - GoRouter is a Server/API micro framwework, HTTP request router, multiplexer, mux that provides request router with middleware supporting net/context.
18
FastRouter - a fast, flexible HTTP router written in Go.

Windows

492
go-ole - Win32 OLE implementation for golang.
80
d3d9 - Go bindings for Direct3D9.

XML

142
xquery - XQuery lets you extract data from HTML/XML documents using XPath expression.
122
xpath - XPath package for Go.
15
XML-Comp - Simple command line XML comparer that generates diffs of folders, files and tags.
15
xml2map - XML to MAP converter written Golang.
6
xmlwriter - Procedural XML generation API based on libxml2's xmlwriter module.

Code Analysis

3550
Go Metalinter - Metalinter is a tool to automatically apply all static analysis tool and report their output in normalized form.
2928
GoLint - Golint is a linter for Go source code.
1242
errcheck - Errcheck is a program for checking for unchecked errors in Go programs.
882
gcvis - Visualise Go program GC trace data in real time.
583
php-parser - A Parser for PHP written in Go.
497
go-critic - source code linter that brings checks that are currently not implemented in other linters.
336
goast-viewer - Web based Golang AST visualizer.
247
go-cleanarch - go-cleanarch was created to validate Clean Architecture rules, like a The Dependency Rule and interaction between packages in your Go projects.
244
unconvert - Remove unnecessary type conversions from Go source.
234
gostatus - Command line tool, shows the status of repositories that contain Go packages.
160
apicompat - Checks recent changes to a Go project for backwards incompatible changes.
145
dupl - Tool for code clone detection.
92
go-checkstyle - checkstyle is a style check tool like java checkstyle. This tool inspired by java checkstyle, golint. The style refered to some points in Go Code Review Comments.
62
validate - Automatically validates struct fields with tags.
61
lint - Run linters as part of go test.
45
go-outdated - Console application that displays outdated packages.
12
tarp - tarp finds functions and methods without direct unit tests in Go source code.
GoCover.io - GoCover.io offers the code coverage of any golang package as a service.
goimports - Tool to fix (add, remove) your Go imports automatically.
GolangCI - GolangCI is an automated Golang code review service for GitHub pull requests. Service is open source and it's free for open source projects.
Golint online - Lints online Go source files on GitHub, Bitbucket and Google Project Hosting using the golint package.
goreturns - Adds zero-value return statements to match the func return types.
gosimple - gosimple is a linter for Go source code that specialises on simplifying code.
staticcheck - staticcheck is go vet on steroids, applying a ton of static analysis checks you might be used to from tools like ReSharper for C#.
unused - unused checks Go code for unused constants, variables, functions and types.

Editor Plugins

10028
vim-go - Go development plugin for Vim.
4615
gocode - Autocompletion daemon for the Go programming language.
4610
vscode-go - Extension for Visual Studio Code (VS Code) which provides support for the Go language.
3150
GoSublime - Golang plugin collection for the text editor SublimeText 3 providing code completion and other IDE-like features.
1458
go-plus - Go (Golang) Package For Atom That Adds Autocomplete, Formatting, Syntax Checking, Linting and Vetting.
888
go-mode - Go mode for GNU/Emacs.
157
Watch - Runs a command in an acme win on file changes.
78
vim-compiler-go - Vim plugin to highlight syntax errors on save.
27
go-language-server - A wrapper to turn the VSCode go extension into a language server supporting the language-server-protocol.
16
gounit-vim - Vim plugin for generating Go tests based on the function's or method's signature.
16
velour - IRC client for the acme editor.
10
theia-go-extension - Go language support for the Theia IDE.
Go plugin for JetBrains IDEs - Go plugin for JetBrains IDEs.

Go Generate Tools

1885
gotests - Generate Go tests from your source code.
822
genny - Elegant generics for Go.
163
re2dfa - Transform regular expressions into finite state machines and output Go source code.
108
gonerics - Idiomatic Generics in Go.
45
gocontracts - brings design-by-contract to Go by synchronizing the code with the documentation.
25
generic - flexible data type for Go.
21
gounit - Generate Go tests using your own templates.

Go Tools

3365
OctoLinker - Navigate through go files efficiently with the OctoLinker browser extension for GitHub.
3354
go-swagger - Swagger 2.0 implementation for go. Swagger is a simple yet powerful representation of your RESTful API.
1719
go-callvis - Visualize call graph of your Go program using dot format.
342
richgo - Enrich go test outputs with text decorations.
316
depth - Visualize dependency trees of any package by analyzing imports.
182
rts - RTS: response to struct. Generates Go structs from server responses.
150
godbg - Implementation of Rusts dbg! macro for quick and easy debugging during development.
95
colorgo - Wrapper around go command for colorized go build output.
37
go-pkg-complete - Bash completion for go and wgo.
10
generator-go-lang - A Yeoman generator to get new Go projects started.
gb - An easy to use project based build tool for the Go programming language.

DevOps Tools

52547
Moby - Collaborative project for the container ecosystem to assemble container-based systems.
49707
kubernetes - Container Cluster Manager from Google.
21100
traefik - Reverse proxy and load balancer with support for multiple backends.
12863
Gitea - Fork of Gogs, entirely community driven.
10924
Vegeta - HTTP load testing tool and library. It's over 9000!
8681
Packer - Packer is a tool for creating identical machine images for multiple platforms from a single source configuration.
5153
Hey - Hey is a tiny program that sends some load to a web application.
4175
GVM - GVM provides an interface to manage Go versions.
3635
webhook - Tool which allows user to create HTTP endpoints (hooks) that execute commands on the server.
3542
gaia - Build powerful pipelines in any programming language.
3146
gox - Dead simple, no frills Go cross compile tool.
2795
bosun - Time Series Alerting Framework.
1681
aptly - aptly is a Debian repository management tool.
1603
goxc - build tool for Go, with a focus on cross-compiling and packaging.
1542
fac - Command-line user interface to fix git merge conflicts.
1474
bombardier - Fast cross-platform HTTP benchmarking tool.
1306
kala - Simplistic, modern, and performant job scheduler.
1074
StatusOK - Monitor your Website and REST APIs.Get Notified through Slack, E-mail when your server is down or response time is more than expected.
1041
Banshee - Anomalies detection system for periodic metrics.
973
s3gof3r - Small utility/library optimized for high speed transfer of large objects into and out of Amazon S3.
632
go-selfupdate - Enable your Go applications to self update.
499
skm - SKM is a simple and powerful SSH Keys Manager, it helps you to manage your multiple SSH keys easily!
493
Scaleway-cli - Manage BareMetal Servers from Command Line (as easily as with Docker).
364
aurora - Cross-platform web-based Beanstalkd queue server console.
344
govvv - “go build” wrapper to easily add version information into Go binaries.
303
gonative - Tool which creates a build of Go that can cross compile to all platforms while still using the Cgo-enabled versions of the stdlib packages.
261
Mora - REST server for accessing MongoDB documents and meta data.
217
godbg - Web-based gdb front-end application.
212
lstags - Tool and API to sync Docker images across different registries.
205
dogo - Monitoring changes in the source file and automatically compile and run (restart).
198
Pomerium - Pomerium is an identity-aware access proxy.
190
manssh - manssh is a command line tool for managing your ssh alias config easily.
189
Pewpew - Flexible HTTP command line stress tester.
173
gobrew - gobrew lets you easily switch between multiple versions of go.
163
Blast - A simple tool for API load testing and batch jobs.
160
ostent - collects and displays system metrics and optionally relays to Graphite and/or InfluxDB.
118
grapes - Lightweight tool designed to distribute commands over ssh with ease.
83
easyssh-proxy - Golang package for easy remote execution through SSH and SCP downloading via ProxyCommand.
59
kcli - Command line tool for inspecting kafka topics/partitions/messages.
56
winrm-cli - Cli tool to remotely execute commands on Windows machines.
55
go-furnace - Hosting solution written in Go. Deploy your Application with ease on AWS, GCP or DigitalOcean.
47
drone-scp - Copy files and artifacts via SSH using a binary, docker or Drone CI.
43
Dropship - Tool for deploying code via cdn.
30
Rodent - Rodent helps you manage Go versions, projects and track dependencies.
20
drone-jenkins - Trigger downstream Jenkins jobs using a binary, docker or Drone CI.
18
awsenv - Small binary that loads Amazon (AWS) environment variables for a profile.
8
DepCharge - Helps orchestrating the execution of commands across the many dependencies in larger projects.
7
lwc - A live-updating version of the UNIX wc command.
5
sg - Benchmarks a set of HTTP endpoints (like ab), with possibility to use the response code and data between each call for specific server stress based on its previous response.
gitea-github-migrator - Migrate all your GitHub repositories, issues, milestones and labels to your Gitea instance.
Gogs - A Self Hosted Git Service in the Go Programming Language.
Wide - Web-based IDE for Teams using Golang.

Other Software

10555
Gor - Http traffic replication tool, for replaying traffic from production to stage/dev environments in real-time.
8507
rkt - App Container runtime that integrates with init systems, is compatible with other container formats like Docker, and supports alternative execution engines like KVM.
7471
Seaweed File System - Fast, Simple and Scalable Distributed File System with O(1) disk seek.
6312
restic - De-duplicating backup program.
5987
Comcast - Simulate bad network connections.
5966
confd - Manage local application configuration files using templates and data from etcd or consul.
5174
LiteIDE - LiteIDE is a simple, open source, cross-platform Go IDE.
4755
drive - Google Drive client for the commandline.
3968
nes - Nintendo Entertainment System (NES) emulator written in Go.
3547
toxiproxy - Proxy to simulate network and system conditions for automated tests.
2558
Duplicacy - A cross-platform network and cloud backup tool based on the idea of lock-free deduplication.
2198
Pipe - A small and beautiful blogging platform.
2146
myLG - Command Line Network Diagnostic tool written in Go.
2004
GoBoy - Nintendo Game Boy Color emulator written in Go.
1904
Stack Up - Stack Up, a super simple deployment tool - just Unix - think of it like 'make' for a network of servers.
1789
snap - Powerful telemetry framework.
1744
Circuit - Circuit is a programmable platform-as-a-service (PaaS) and/or Infrastructure-as-a-Service (IaaS), for management, discovery, synchronization and orchestration of services and hosts comprising cloud applications.
1627
lgo - Interactive Go programming with Jupyter. It supports code completion, code inspection and 100% Go compatibility.
1404
borg - Terminal based search engine for bash snippets.
878
Go Package Store - App that displays updates for the Go packages in your GOPATH.
672
scc - Sloc Cloc and Code, a very fast accurate code counter with complexity calculations and COCOMO estimates.
635
Documize - Modern wiki software that integrates data from SaaS tools.
632
Leaps - Pair programming service using Operational Transforms.
554
peg - Peg, Parsing Expression Grammar, is an implementation of a Packrat parser generator.
535
vFlow - High-performance, scalable and reliable IPFIX, sFlow and Netflow collector.
396
mockingjay - Fake HTTP servers and consumer driven contracts from one configuration file. You can also make the server randomly misbehave to help do more realistic performance tests.
357
GoDNS - A dynamic DNS client tool, supports DNSPod & HE.net, written in Go.
333
shell2http - Executing shell commands via http server (for prototyping or remote control).
316
gocc - Gocc is a compiler kit for Go written in Go.
286
wellington - Sass project management tool, extends the language with sprite functions (like Compass).
253
ipe - Open source Pusher server implementation compatible with Pusher client libraries written in GO.
244
ide - Browser accessible IDE. Designed for Go with Go.
184
Cherry - Tiny webchat server in Go.
174
orange-cat - Markdown previewer written in Go.
126
Orbit - A simple tool for running commands and generating files from templates.
116
joincap - Command-line utility for merging multiple pcap files together.
82
DDNS - Personal DDNS client with Digital Ocean Networking DNS as backend.
72
boxed - Dropbox based blog engine.
20
naclpipe - Simple NaCL EC25519 based crypto pipe tool written in Go.
17
term-quiz - Quizzes for your terminal.
15
Snitch - Simple way to notify your team and many tools when someone has deployed any application via Tsuru.
12
GoDocTooltip - Chrome extension for Go Doc sites, which shows function description as tooltip at function list.
Docker - Open platform for distributed applications for developers and sysadmins.
GoLand - Full featured cross-platform Go IDE.
hugo - Fast and Modern Static Website Engine.
Juju - Cloud-agnostic service deployment and orchestration - supports EC2, Azure, Openstack, MAAS and more.
limetext - Lime Text is a powerful and elegant text editor primarily developed in Go that aims to be a Free and open-source software successor to Sublime Text.
syncthing - Open, decentralized file synchronization tool and protocol.
tsuru - Extensible and open source Platform as a Service software.

Benchmarks

1211
go-http-routing-benchmark - Go HTTP request router benchmark and comparison.
902
go-web-framework-benchmark - Go web framework benchmark.
888
skynet - Skynet 1M threads microbenchmark.
783
go_serialization_benchmarks - Benchmarks of Go serialization methods.
163
speedtest-resize - Compare various Image resize algorithms for the Go language.
112
go-benchmarks - Few miscellaneous Go microbenchmarks. Compare some language features to alternative approaches.
89
autobench - Framework to compare the performance between different Go versions.
89
gospeed - Go micro-benchmarks for calculating the speed of language constructs.
51
gocostmodel - Benchmarks of common basic operations for the Go language.
48
golang-sql-benchmark - Collection of benchmarks for popular Go database/SQL utilities.
19
go-benchmark-app - Powerful HTTP-benchmark tool mixed with Аb, Wrk, Siege tools. Gathering statistics and various parameters for benchmarks and comparison results.
16
golang-micro-benchmarks - Tiny collection of Go micro benchmarks. The intent is to compare some language features to others.
14
kvbench - Key/Value database benchmark.

Conferences

Capital Go - Washington, D.C., USA.
dotGo - Paris, France.
GoCon - Tokyo, Japan.
GoDays - Berlin, Germany.
GoLab - Florence, Italy.
GolangUK - London, UK.
GopherChina - Shanghai, China.
GopherCon - Denver, USA.
GopherCon Brazil - Florianópolis, BR.
GopherCon Europe - Reykjavik, Iceland.
GopherCon India - Pune, India.
GopherCon Israel - Tel Aviv, Israel.
GopherCon Russia - Moscow, Russia.
GopherCon Singapore - Mapletree Business City, Singapore.
GopherCon Vietnam - Ho Chi Minh City, Vietnam.
GothamGo - New York City, USA.
GoWayFest - Minsk, Belarus.

E-Books

Gophers

1645
gophers - Gopher artworks by Ashley McNamara.
1443
gophers - Free gophers.
281
gopherize.me - Gopherize yourself.
59
gopher-logos - adorable gopher logos.
48
gophers - random gopher graphics.
35
gophers - Gopher amigurumi toy pattern.
30
Go-gopher-Vector - Go gopher Vector Data [.ai, .svg].

Meetups

Twitter

Websites

23872
awesome-awesomeness - List of other amazingly awesome lists.
13666
Awesome Remote Job - Curated list of awesome remote jobs. A lot of them are looking for Go hackers.
141
golang-graphics - Collection of Go images, graphics, and art.
32
gocryforhelp - Collection of Go projects that needs help. Good place to start your open-source way in Go.
Awesome Go @LibHunt - Your go-to Go Toolbox.
CodinGame - Learn Go by solving interactive tasks using small games as practical examples.
Go Blog - The official Go blog.
Go Challenge - Learn Go by solving problems and getting feedback from Go experts.
Go Community on Hashnode - Community of Gophers on Hashnode.
Go Forum - Forum to discuss Go.
Go In 5 Minutes - 5 minute screencasts focused on getting one thing done.
Go Report Card - A report card for your Go package.
godoc.org - Documentation for open source Go packages.
Golang Flow - Post Updates, News, Packages and more.
Golang News - Links and news about Go programming.
golang-nuts - Go mailing list.
Google Plus Community - The Google+ community for #golang enthusiasts.
Gopher Community Chat - Join Our New Slack Community For Gophers (Understand how it came).
Gophercises - Free coding exercises for budding gophers.
gowalker.org - Go Project API documentation.
justforfunc - Youtube channel dedicated to Go programming language tips and tricks, hosted by Francesc Campoy @francesc.
r/Golang - News about Go.
Go Projects - List of projects on the Go community wiki.
Trending Go repositories on GitHub today - Good place to find new Go libraries.

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