Go Wiki: Projects

Indexes and search engines

These sites provide indexes and search engines for Go packages:

pkg.go.dev - A documentation browser for any Go open source package.
godocs.io - A simple package documentation browser (fork of gddo, the software which previously powered the now-defunct godoc.org)
go-hardware - Curated list of resources for using Go on non-standard hardware.
go-patterns - Commonly used patterns and idioms for Go.
Go Report Card - Code quality summaries for any Go project.
Sourcegraph - Source indexing, analysis and search.
Codeseek.com - Custom search engine with a wealth of Go blogs.

Dead projects

If you find a project in this list that is dead or broken, please either mark it as such or mention it in the #go-nuts IRC channel.

API Services and Tools
Artificial Intelligence
Astronomy
Build Tools
Caching
Cloud Computing
Command-line Option Parsers
Command-line Tools
Compression
Concurrency and Goroutines
Configuration File Parsers
Console User Interface
Continuous Integration
Cryptocurrency
Cryptography
Databases
Data Processing
Data Structures
Date
Development Tools
Distributed/Grid Computing
Documentation
Editors
Email
Encodings and Character Sets
Error handling
File Systems
Games
GIS
Graphics and Audio
GUIs and Widget Toolkits
Hardware
Language and Linguistics
Logging & Monitoring
Machine Learning & AI
Mathematics
Microservices
Miscellaneous
Music
Networking
DNS
FTP
HTTP
IMAP
Instant Messaging
NNTP
Protocol Buffers
rsync
Telnet
VNC
Websockets
ZeroMQ
Misc Networking
Operating System Interfaces
Option Types
Other Random Toys, Experiments and Example Code
P2P and File Sharing
Programming
Resource Embedding
RPC
Scanner and Parser Generators
Security
Simulation Modeling
Sorting
Source Code Management
Storage
Strings and Text
Testing
Transpiler
Unix
Unsorted
Validation
Version Control
Virtual Machines and Languages
Web Applications
Web Libraries
Windows

API Services and Tools

GraphQL

GraphJin - Instant GraphQL API for Postgres. No code needed, compiles GraphQL to SQL.

MTProto

MTProto - Full-native implementation of Telegram API written on pure Go.

Artificial Intelligence

langchaingo - LangChainGo is a framework for developing applications powered by language models.
go-openai - Go bindings for OpenAI APIs.

Astronomy

go-fits - FITS (Flexible Image Transport System) format image and data reader
astrogo/fitsio - Pure Go FITS (Flexible Image Transport System) format image and data reader/writer
cosmo - Cosmological distance and time calculations for common cosmologies (Friedmann-Lemaître-Robertson-Walker metric).
gonova - A wrapper for libnova – Celestial Mechanics, Astrometry and Astrodynamics Library
meeus - Implementation of “Astronomical Algorithms” by Jean Meeus
novas - Interface to the Naval Observatory Vector Astrometry Software (NOVAS)
utdfgo - Spacecraft UTDF Packet Reader and Decoder

Build Tools

beku - A library and program to manage packages in user’s environment (GOPATH or vendor directory)
colorgo - Colorize go build output
dogo - Monitoring changes in the source file and automatically compile and run (restart)
fileembed-go - This is a command-line utility to take a number of source files, and embed them into a Go package
gb - A(nother) build tool for go, with an emphasis on multi-package projects
gg - A tiny multi golang projects env/make management tool.
GG - A build tool for Go in Go
godag - A frontend to the Go compiler collection
goenv - goenv provides Go version and Go workspace management tools
gopei - Simple Go compiler and LiteIDE installer for Unix/Linux that adds many features like github support and presenter.
go-pkg-config - lightweight clone of pkg-config
goscons - Another set of SCons builders for Go
go-server - Agile server framework.
gotgo - An experimental preprocessor to implement ‘generics’
gows - Go workspace manager
goxc - A build tool with a focus on cross-compiling, packaging, versioning and distribution
GVM - GVM provides an interface to manage Go versions
Realize - A Go build system with file watchers, output streams and live reload. Run, build and watch file changes with custom paths.
SCons Go Tools - A collection of builders that makes it easy to compile Go projects in SCons
Task - A task runner / simple alternative to Make

Caching

cache2go - Concurrency-safe caching library with expiration capabilities and access counters
cache - LevelDB style LRU cache for Go, support non GC object cache.
go-cache - An in-memory key:value store/cache (similar to Memcached) library for Go, suitable for single-machine applications
golibs/cache - A tiny cache package
gomemcached - A memcached server in go
gomemcache - a memcached client
go-slab - Slab allocator for go.
groupcache - Caching and cache-filling library, intended as a replacement for memcached in many cases
libmemcache - Fast client and server libraries speaking memcache protocol
memcached-bench - Benchmark tool for memcache servers
memcached - Fast memcache server, which supports persistence and cache sizes exceeding available RAM
memcache - go memcached client, forked from YouTube Vitess
rend - A memcached proxy that manages data chunking and L1/L2 caches
YBC bindings - Bindings for YBC library providing API for fast in-process blob cache
g2cache -A coordinated local and external two-level caching scheme

Cloud Computing

aws-sdk-go - AWS SDK for the Go programming language.
Docker - The Linux container runtime. Developed by dotCloud.
Enduro/X ASG Application Server for Go. Provides application server and middleware facilities for distributed transaction processing. Supports microservices based application architecture. Developed by ATR Baltic.
flamingo - A Lightweight Cloud Instance Contextualizer.
gocircuit - A distributed operating system that sits on top of the traditional OS on multiple machines in a datacenter deployment. It provides a clean and uniform abstraction for treating an entire hardware cluster as a single, monolithic compute resource. Developed by Tumblr.
gosync - A package for syncing data to and from S3.
juju - Orchestration tool (deployment, configuration and lifecycle management), developed by Canonical.
Kubernetes - Container Cluster Manager from Google.
LXD Daemon based on liblxc offering a REST API to manage containers
mgmt - Next Generation Configuration Management tool (parallel, event driven, distributed system) developed by @purpleidea, (a Red Hat employee) and the mgmt community.
rclone - “rsync for cloud storage” - Google Drive, Amazon Drive, S3, Dropbox, Backblaze B2, One Drive, Swift, Hubic, Cloudfiles, Google Cloud Storage, Yandex Files
ShipBuilder - ShipBuilder is a minimalist open source platform as a service, developed by Jay Taylor.
swift - Go language interface to Swift / Openstack Object Storage / Rackspace cloud files
Tsuru - Tsuru is an open source polyglot cloud computing platform as a service (PaaS), developed by Globo.com.

Command-line Option Parsers

argcfg - Use reflection to populate fields in a struct from command line arguments
autoflags - Populate go command line app flags from config struct
carapace - Command argument completion generator for spf13/cobra.
charli - Small, procedural, zero-reflection CLI toolkit with help & completions.
cobra - A commander for modern go CLI interactions supporting commands & POSIX/GNU flags
cli - A Go library for implementing command-line interfaces.
cmdline - A simple parser with support for short and long options, default values, arguments and subcommands.
command - Add subcommands to your CLI, provides help and usage guide.
docopt.go - An implementation of docopt in the Go programming language.
flaq - Command-line options parsing library, POSIX/GNU compliant, supports struct tags as well as the Go’s flag approach.
getopt - full featured traditional (BSD/POSIX getopt) option parsing in Go style
getopt - Yet Another getopt Library for Go. This one is like Python’s.
gnuflag - GNU-compatible flag parsing; substantially compatible with flag.
go-commander - Simplify the creation of command line interfaces for Go, with commands and sub-commands, with argument checks and contextual usage help. Forked from the “go” tool code.
go-flags - command line option parser for go
go-getoptions - Go option parser inspired on the flexibility of Perl s GetOpt::Long.
goopt - a getopt clone to parse command-line flags
go-options - A command line parsing library for Go
mellium.im/cli A library for parsing modern CLI apps including subcommands that may have their own flags and a built in help system. Designed to use a minimal API.
options - Self documenting CLI options parser
opts.go - lightweight POSIX- and GNU- style option parsing
pflag - Drop-in replacement for Go’s flag package, implementing POSIX/GNU-style –flags.
subcommands - A concurrent, unit tested, subcommand library
uggo - Yet another option parser offering gnu-like option parsing. This one wraps (embeds) flagset. It also offers rudimentary pipe-detection (commands like ls behave differently when being piped to).
xflags - Expressive flags for Go
writ - A flexible option parser with thorough test coverage. It’s meant to “just work” and stay out of the way.

Command-line Tools

amqp-message-remover - Removes unwanted messages by regexp pattern from AMQP queue
Arduino-cli - Arduino CLI is an all-in-one solution that provides builder, boards/library manager, uploader, discovery and many other tools needed to use any Arduino compatible board and platforms.
awless - A Mighty command-line interface for Amazon Web Services (AWS).
boilr - A blazing fast CLI tool for creating projects from boilerplate templates.
carapace-bin - Multi-shell multi-command argument completer.
carapace-spec - Define simple completions using a spec file.
comb-go - A CLI tool implemented by Golang to manage CloudComb resources.
coshell - A drop-in replacement for GNU ‘parallel’.
dasel - Query and update data structures using selectors from the command line. Comparable to jq / yq but supports JSON, YAML, TOML and XML with zero runtime dependencies.
DevTodo2 - A small command-line per-project task list manager.
dsio - Command line tool for Google Cloud Datastore.
efs2 - A dead-simple configuration management tool that is powered by stupid shell scripts.
enumeration - Easy enumeration code generation.
fzf - A command-line fuzzy finder
gich - A cross platform which utility written in Go
gister - Manage your github gists from the command-line
git-time-metric - Simple, seamless, lightweight time tracking for Git
gmail2go - Simple gmail multiple accounts cli mail checker
go-amqp-sniffer - Listens from AMQP exchange and streams messages to standard output in mongoimport compatible JSON
gocreate - Command line utility that create files from templates.
godocdoc - Start godoc and open it in your browser to the project in the current directory.
gojson - Command-line tool for manipulating JSON for use in developing Go code.
golor - golor is a command line tool for golang source code coloring
GoNote - Command line SimpleNote client.
gopass - Command line password manager with git syncing capabilities
GoPasswordCreator - A small tool, which creates random passwords
Grozilla - File downloader utility with resume capability.
JayDiff - A JSON diff utility written in Go.
jsonpp - A fast command line JSON pretty printer.
lsp - A human-friendlier alternative to ls
ltst - View the latest news of your choosing right in your terminal
passhash - Command-line utility to create secure password hashes
passman - A command-line password manager
pdfcpu - PDF processor.
pjs - Pretty print and search through JSON data structures fast.
project - Very simple CLI tool to setup new projects from boilerplate templates.
redis-view - A tree like tool help you explore data structures in your redis server
remote-torrent - A simple tool for downloading Torrent remotely and retrieving files back over HTTP at full speed without ISP Torrent limitation
restic - A fast, efficient and secure backup program
runtemplate - A very simple command-line tool for executing Go templates, useful for use with go generate.
runtemplate - A simple tool for executing Go templates to support generating Go code for your types.
sift - A fast and powerful open source alternative to grep
tecla - Command-line editing library
Terracognita - Reads from existing Cloud Providers (reverse Terraform) and generates your infrastructure as code on Terraform configuration.
wlog - A simple logging interface that supports cross-platform color and concurrency.
wmenu - An easy to use menu structure for cli applications that prompts users to make choices.
mani - CLI tool to help you manage multiple repositories

Compression

brotli - go bindings for Brotli algorithm.
compress - Faster drop in replacements for gzip, zip, zlib, deflate.
dgolzo - LZO bindings.
go-lzo - Pure-Go LZO compressor/decompression, faithful translation of the C codebase.
dictzip - A reader and writer for files in the random access dictzip format.
fast-archiver - Alternative archiving tool with fast performance for huge numbers of small files.
gbacomp - A Go library to (de)compress data compatible with GBA BIOS.
go-lz4 - Port of LZ4 lossless compression algorithm to Go.
go-lzss - Implementation of LZSS compression algorithm in Go.
go-sevenzip - Package sevenzip implements access to 7-zip archives (wraps C interface of LZMA SDK).
go-zip - A wrapper around C library libzip, providing ability to modify existing ZIP archives.
lz4 - High performance, concurrent LZ4 implementation.
lzma - compress/lzma package for Go.
pgzip - Multicore gzip, compatible with the standard library.
ppmd-go - Golang bindings for the LZMA SDK library. (Only binded PPMD)
s2 - High throughput Snappy extension.
snappy-go - Google’s Snappy compression algorithm in Go.
yenc - yenc decoder package.
zappy - Package zappy implements the zappy block-based compression format. It aims for a combination of good speed and reasonable compression.
zstd - Pure Go Zstandard compression/decompression.

Concurrency and Goroutines

grpool - Lightweight Goroutine pool.
pool - Go consumer goroutine pool for easy goroutine handling + time saving.
tunny - A goroutine pool.
worker - An easy and lightweight concurrent job framework.

Configuration File Parsers

awsenv - a small binary that loads Amazon (AWS) environment variables for a profile
code.soquee.net/env — Load environment variables from .env or similar files, or from any io.Reader and populate the local environment.
confl - nginx config syntax, lenient, encode/decode, custom marshaling
configor - Golang Configuration tool that support YAML, JSON, TOML, Shell Environment
fig - Tiny library for reading configuration from a file and from environment variables (with validation & defaults).
flagfile - Adds parsing and serialization support to the standard library flag package (adds a –flagfile option)
gcfg - read INI-style configuration files into Go structs; supports user-defined types and subsections
globalconf - Effortlessly persist to and read flag values from an ini config file
goconf - a configuration file parser
goconfig - Configuration based on struct introspection, supports environment vars, command line args, and more.
hjson - Human JSON, a configuration file format for humans. Relaxed syntax, fewer mistakes, more comments.
hocon - Configuration library for working with the HOCON(a human-friendly JSON superset) format, supports features like environment variables, referencing other values, comments and multiple files.
jsonconfig - a JSON configuration file parser with comments support
koanf - Light weight, extensible library for reading config in Go applications. Built in support for JSON, TOML, YAML, env, command line.
lib/ini - Package ini implement reading and writing INI text format as defined by Git configuration file syntax.
lib/ssh/config - Package config provide the ssh_config(5) parser and getter.
nestext - Package nestext provides tools for processing NestedText, a human friendly data format.
properties - Library for reading and writing properties files
scribeconf - Facebook Scribe server configuration file parser
toml:
- go-toml-config - TOML-based config for Go
- go-toml - Go library for the TOML language
- gp-config - Subset of TOML syntax with basic and reflection APIs
- toml-go - An easy-to-use Go parser for the Toml format
- toml - TOML parser for Go with reflection
- tom-toml - TOML parser for Go, support comments/formatter/apply.
uConfig - an unopinionated, extendable and plugable configuration management. Supports YAML, TOML, JSON, Env vars, K8s DAPI, et al.
viper - a complete configuration solution supporting YAML, TOML & JSON and integration with command line flags
yaml:
- yaml - YAML support for the Go language, by Canonical
- goyaml - A port of LibYAML to Go
- go-yaml - YAML support for the Go language

Console User Interface

ansi - Easily create ansi escape code strings and closures to format, color console output
ansiterm - pkg to drive text-only consoles that respond to ANSI escape sequences
box-cli-maker - Make Highly Customized Boxs for your CLI.
bubbletea - A powerful little TUI framework
cons - A simple package for building interactive console tools.
gnureadline - GNU Readline bindings
go-ansiout - Another ANSI escape code sequence tool for use with command-line applications.
gockel - a Twitter client for text terminals
gocui - Minimalist library aimed at creating Console User Interfaces
gocurse - Go bindings for NCurses
gocurses - NCurses wrapper
go-ibgetkey - “hot key” type user input package for use in processing keystrokes in command-line applications.
go.linenoise - Linenoise bindings (simple and easy readline with prompt, optional history, optional tab completion)
goncurses - An ncurses library, including the form, menu and panel extensions
gopass - Allows typing of passwords without echoing to screen
go-pullbarz - Fancy “light bar” menus like in Lotus 123 from the DOS days. Dependent on go-ibgetkey and go-ansiout.
go.sgr - Terminal/console colors and text decoration (bold,underlined,etc).
go-stfl - a thin wrapper around STFL, an ncurses-based widget toolkit
goterminal - A go library that lets you write and then re-write the text on terminal, to update progress. It works on Windows too!
go-web-shell - Remote web shell, implements a net/http server.
igo - A simple interactive Go interpreter built on exp/eval with some readline refinements
oh - A Unix shell written in Go
pty - obtain pseudo-terminal devices
readline - A pure go implementation for GNU-Readline kind library
tcell - Tcell is an alternate terminal package, similar in some ways to termbox, but better in others.
termbox-go - A minimalist alternative to ncurses to build terminal-based user interfaces
termios - Terminal support
termon - Easy terminal-control-interface for Go.
uilive - uilive is a go library for updating terminal output in realtime.
uiprogress - A library to render progress bars in terminal applications.
uitable - A library to improve readability in terminal apps using tabular data.
yandex-weather-cli - Command line interface for Yandex weather service

Continuous Integration

goveralls - Go integration for Coveralls.io continuous code coverage tracking system.
overalls - Multi-Package go project coverprofile for tools like goveralls

Cryptocurrency

Skycoin - Skycoin is a next-generation cryptocurrency written in Go. Skycoin is not designed to add features to Bitcoin, but rather improves Bitcoin by increasing simplicity, security and stripping out everything non-essential.

Cryptography

BLAKE2b - Go implementation of BLAKE2b hash function
cryptogo - some useful cryptography-related functions, including paddings (PKCS7, X.923), PBE with random salt and IV
cryptoPadding - Block padding schemes implemented in Go
dkeyczar - Go port of Google’e Keyczar cryptography library
dkrcrypt - Korean block ciphers: SEED and HIGHT
dskipjack - Go implementation of the SKIPJACK encryption algorithm
go-cs - concurrent ssh client.
go-ed25519 - CGO bindings for Floodberry’s ed25519-donna. Fast batch verification.
go-hc128 - Go implementation of HC-128, an eSTREAM stream cipher
go-jose - Go implementation of the JOSE standards
go-lioness - Lioness wide-block cipher using Chacha20 and Blake2b
go-minilock - Go implementation of the minilock file encryption system.
GoSkein - Implementation of Skein hash and Threefisch crypto for Go
go-sphinxmixcrypto - Sphinx mix network cryptographic packet format operations
keccak - A keccak (SHA-3) implementation
ketama.go - libketama-style consistent hashing
kindi - encryption command line tool
openssl - openssl bindings for go
otrcat - a general purpose command-line tool for communicating using the Off-The-Record protocol
scrypt - Go implementation of Colin Percival’s scrypt key derivation function
secureio - An easy-to-use XChaCha20-encryption wrapper for io.ReadWriteCloser using ECDH key exchange algorithm, ED25519 signatures and Blake3+Poly1305 checksums/message-authentication. Also a multiplexer.
simpleaes - AES encryption made easy
siphash - SipHash: a fast short-input pseudorandom function
SRP - SRP: Secure Remote Password - Implementation in go
ssh-vault - encrypt/decrypt using ssh keys
themis - Multi-platform high-level cryptographic library for protecting sensitive data: secure messaging with forward secrecy, secure data storage (AES256GCM); suits for building end-to-end encrypted applications
tiger - Tiger cryptographic hashing algorithm
whirlpool - whirlpool cryptographic hashing algorithm

Data Processing

automi - Compose process and integration flows on Go channels
Gleam - Fast, efficient, and scalable distributed map/reduce system, DAG execution, in memory or on disk, runs standalone or distributedly.
Glow - Glow is an easy-to-use distributed computation system, similar to Hadoop Map Reduce, Spark, Flink, Storm.
gostatsd - Statsd server and library.
Heka - Real time data and log file processing engine.
Kapacitor - Framework for processing, monitoring and alerting on timeseries data.
parapipe - FIFO Pipeline which parallels execution on each stage while maintaining the order of messages and results
pipe - Several functional programming supporting in golang (Map/Reduce/Filter)
proto - Map/Reduce/Filter etc. for Go using channels as result streams.
ratchet - A library for performing data pipeline / ETL tasks in Go.
regommend - Recommendation engine.
rrd - Bindings for rrdtool.
XConv - Convert any value between types (base type, struct, array, slice, map, etc.)

Data Structures

Collections

collections - Several common data structures
data-structures - A collection of data-structures (ArrayList, SortedList, Set, AVL Tree, Immutable AVL Tree, B+Tree, Ternary Search Trie, Hash Table (Separate Chaining), Linear Hash Table)
ps - Persistent data structures
Tideland golib - A collections library
GoDS - Sets, Lists, Stacks, Maps, Trees, Queues, and much more

Hashtables

bimap - A simple bidirectional map implementation
gohash - A simple linked-list hashtable that implements sets and maps
go-maps - Go maps generalized to interfaces

Lists

fs2/mmlist - A memory mapped list.
GoArrayList - GoArrayList is a Go language substitute for the Java class ArrayList, with very nearly all features.
goskiplist - A skip list implementation in Go.
itreap - An immutable ordered list, internally a treap.
ListDict - Python List and Dict for Go
skip - A fast position-addressable ordered map and multimap.
Skiplist - A fast indexable ordered multimap.
skiplist - A skip list implementation. Highly customizable and easy to use.
skiplist - Skiplist data structure ported from Redis’s Sorted Sets.
stackgo - A fast slice-based stack implementation.

Queues

fifo_queue - Simple FIFO queue
figo - A simple fifo queue with an optional thread-safe version.
go.fifo - Simple auto-resizing thread-safe fifo queue.
gopqueue - Priority queue at top of container/heap
go-priority-queue - An easy to use heap implementation with a conventional priority queue interface.
golibs/stack - A LIFO and ringbuffer package
gringo - A minimalist queue implemented using a stripped-down lock-free ringbuffer
heap - A general heap package without converting elements to interface{} and back.
queued - A simple network queue daemon
queue - A queue manager on top of Redis

Graphs

graph - Library of basic graph algorithms
graphs - Implementation of various tree, graph and network algorithms
groph - A pure Go library of graphs and algorithms

Sets

disjoint - Disjoint sets (union-find algorithm with path compression)
golang-set - A full thread-safe and unsafe set implementation for Go.
goset - A simple, thread safe Set implementation
set - Set data structure for Go

Trees

b - Package b implements B+trees with delayed page split/concat and O(1) enumeration. Easy production of source code for B+trees specialized for user defined key and value types is supported by a simple text replace.
btree - Package btree implements persistent B-trees with fixed size keys, http://en.wikipedia.org/wiki/Btree
btree - In-memory (not persistent) B-tree implementation, similar API to GoLLRB
go-avltree - AVL tree (Adel’son-Vel’skii & Landis) with indexing added
go-btree - Simple balance tree implementation
go-darts - Double-ARray Trie System for Go
GoLLRB - A Left-Leaning Red-Black (LLRB) implementation of 2-3 balanced binary search trees in Google Go
go-merkle - Merkle-ized binary (search) trees with proofs.
go-radix, go-radix-immutable - Radix tree implementations.
go-stree - A segment tree implementation for range queries on intervals
gtreap - Persistent treap implementation.
prefixmap - Simple trie-based prefix-map for string-based keys
rbtree - A high performance red-black tree with an API similar to C++ STL’s for set, map, multiset, multimap.
rbtree - Yet another red-black tree implementation, with a C++ STL-like API
rtreego - an R-Tree library
triego - Simple trie implementation for storing words

Other

aurora - Cross-platform Beanstalk queue server console.
bigendian - binary parsing and printing
deepcopy - Make deep copies of data structures
dgobloom - A Bloom Filter implementation
epochdate - Compact dates stored as days since the Unix epoch
etree - Parse and generate XML easily
excelize - Go library for reading and writing Microsoft Excel (XLSX) files.
fsm - Minimalistic state machine for use instead of booleans
go-algs/ed - Generalized edit-distance implementation
go-algs/maxflow - An energy minimization tool using max-flow algorithm.
gocrud - Framework for working with arbitrary depth data structures.
go-extractor - Go wrapper for GNU libextractor
Gokogiri - A lightweight libxml wrapper library
GoNetCDF - A wrapper for the NetCDF file format library
goop - Dynamic object-oriented programming support for Go
gopart- Type-agnostic partitioning for anything that can be indexed in Go.
gotoc - A protocol buffer compiler written in Go
govalid - Data validation library
goxlsxwriter - Golang bindings for libxlsxwriter for writing XLSX (Excel) files
goxml - A thin wrapper around libxml2
hyperloglog - An implementation of the HyperLogLog and HyperLogLog++ algorithms for estimating cardinality of sets using constant memory.
itertools - Provides generic iterable generator function along with functionality similar to the itertools python package.
jsonv - A JSON validator
libgob - A low level library for generating gobs from other languages
mxj - Marshal/Unmarshal XML doc from/to map[string]interface{} or JSON
ofxgo - A library for querying OFX servers and/or parsing the responses (and example command-line client).
Picugen - A general-purpose hash/checksum digest generator.
simple-sstable - A simple, no-frills SSTable format and implementation in Go.
tribool - Ternary (tree-valued) logic for Go
Tuple - Tuple is a go type that will hold mixed types / values
vcard - Reading and writing vcard file in go. Implementation of RFC 2425 (A MIME Content-Type for Directory Information) and RFC 2426 (vCard MIME Directory Profile).
weightedrandom - A library for efficient weighted random picking
xlsx - A library to help with extracting data from Microsoft Office Excel XLSX files.

Databases

CockroachDB

cockroachdb - A Scalable, Survivable, Strongly-Consistent SQL Database

Hazelcast IMDG

Hazelcast IMDG Go Client - The official Go client implementation for Hazelcast IMDG, the open source in-memory data grid.

MongoDB

Mongo Driver - Official MongoDB Go driver
MongoDB Exporter - A Prometheus metrics exporter for MongoDB
mongobetween - A lightweight MongoDB connection pooler written in Golang
rocks-stata - MongoDB Backup Utility

MySQL

Go-MySQL-Driver - A lightweight and fast MySQL-Driver for Go’s database/sql package
MyMySQL - MySQL Client API written entirely in Go.
mysqlsuperdump - Generate partial and filtered dumps of MySQL databases
TiDB - MySQL compatible distributed database modeled after Google’s F1 design.
vitess - Scaling MySQL databases for the web

ODBC

go-odbc - ODBC Driver for Go
odbc3-go - This package is wrapper around ODBC (version 3).

PostgreSQL

code.soquee.net/migrate A library for generating, applying, and listing PostgreSQL database migrations using a mechanism that’s compatible with Rust’s Diesel.
go-libpq - cgo-based Postgres driver for Go’s database/sql package
go-pgsql - A PostgreSQL client library for Go
kallax - PostgreSQL typesafe ORM
pgsql.go - PostgreSQL high-level client library wrapper
pgx - Go PostgreSQL driver that is compatible with database/sql and has native interface for more performance and features
pq - Pure Go PostgreSQL driver for database/sql
yoke - Postgres high-availability cluster with auto-failover and automated cluster recovery

QL

ql - A pure Go embedded (S)QL database.

Redis

godis - Simple client for Redis
Go-Redis - Client and Connectors for Redis key-value store
go-redis - Redis client built on the skeleton of gomemcache
Redigo - Go client for Redis.
redis - Redis client for Go
rueidis - Fast Redis RESP3 client that supports client side caching and auto pipelining.

RethinkDB

GoRethink - RethinkDB Driver for Go

SQLite

gosqlite3 - Go Interface for SQLite3
gosqlite (forked) - A fork of gosqlite
gosqlite - a trivial SQLite binding for Go.
go-sqlite - A database/sql driver and standalone sqlite3 interface
go-sqlite-lite - A simple SQLite package for Go.
mattn’s go-sqlite3 - sqlite3 driver conforming to the built-in database/sql interface

Vertica

vertica-sql-go - A pure Go driver for Vertica database.

ORM

beedb - beedb is an ORM for Go. It lets you map Go structs to tables in a database
ent - An entity framework for Go
FilterXorm - Build conditions for xorm project.
go-modeldb - A simple wrapper around sql.DB for struct support.
gorm - An ORM library for Go, aims for developer friendly
gorp - SQL mapper for Go
go-firestorm - Simple Go ORM for Cloud Firestore
go-store - Data-store library for Go that provides a set of platform-independent interfaces to persist and retrieve key-value data.
hood - Database agnostic ORM for Go. Supports Postgres and MySQL.
lore - Simple and lightweight pseudo-ORM/pseudo-struct-mapping environment for Go.
qbs - Query By Struct. Supports MySQL, PostgreSQL and SQLite3.
sqlboiler - Database-first ORM via code generation.
sqlgen - Go code generation for SQL interaction.
structable - Struct-to-table database mapper.
xorm - Simple and Powerful ORM for Go.
reform - A better ORM for Go, based on non-empty interfaces and code generation.
go-queryset - 100% type-safe ORM for Go with code generation and MySQL, PostgreSQL, Sqlite3, SQL Server support.

Key-Value-Stores

bolt - Persistent key/value store inspired by LMDB.
dbm - Package dbm (WIP) implements a simple database engine, a hybrid of a hierarchical and/or a key-value one.
fs2/bptree - A memory mapped B+Tree with duplicate key support. Appropriate for large amounts of data (aka +100 GB). Supports both anonymous and file backed memory maps.
Diskv - Home-grown, disk-backed key-value store
etcd - Highly-available key value store for shared configuration and service discovery
olric Distributed cache and in-memory key/value data store. It can be used both as an embedded Go library and as a language-independent service.
gkvlite - Pure go, simple, ordered, atomic key-value persistence based on append-only file format.
gocask - Key-value store inspired by Riak Bitcask. Can be used as pure go implementation of dbm and other kv-stores.
goleveldb - Another implementation of LevelDB key/value in pure Go.
kv - Yet another key/value persistent store. Atomic operations, two phase commit, automatic crash recovery, …
leveldb-go - This is an implementation of the LevelDB key/value database.
levigo - levigo provides the ability to create and access LevelDB databases.
persival - Programatic, persistent, pseudo key-value storage

Graph Databases

cayley - 100% Go graph database, inspired by Freebase and the Google Knowledge Graph.
Dgraph - Fast, Distributed Graph DB with a GraphQL-like API.
go-gremlin - A Go client for the Apache TinkerTop Graph analytics framework (Gremlin server).

NoSQL

couchgo - The most feature complete CouchDB Adapter for Go. Modeled after couch.js.
influxdb - Scalable datastore for metrics, events, and real-time analytics
Kivik - Kivik provides a common Go and GopherJS client library for CouchDB, PouchDB, and similar databases.
ledisdb - A high performance NoSQL like Redis.
nodb - A pure Go embed Nosql database with kv, list, hash, zset, bitmap, set.
tiedot - A NoSQL document database engine using JSON for documents and queries; it can be embedded into your program, or run a stand-alone server using HTTP for an API.

Other

cabinet - Kyoto Cabinet bindings for go
camlistore - Personal distributed storage system for life.
cdb.go - Create and read cdb (“constant database”) files
CodeSearch - Index and perform regex searches over large bodies of source code
dbxml - A basic interface to Oracle Berkeley DB XML
drive - A Google drive command line client
Event Horizon - Toolkit for Command Query Responsibility Segregation and Event Sourcing (CQRS/ES)
go-batcher - Simply create and use batch handler in Go
go-clickhouse - Connector to Yandex Clickhouse (column-oriented database)
go-db-oracle - GO interface to Oracle DB
gographite - statsd server in go (for feeding data to graphite)
gokabinet - Go bindings for Kyoto Cabinet DBM implementation
go-model - Robust & Easy to use struct mapper and utility methods for Go
go-notify - GO bindings for the libnotify
goprotodb - A binding to Berkeley DB storing records encoded as Protocol Buffers.
go-rexster-client - Go client for the Rexster graph server (part of the TinkerPop suite of graph DB tools)
goriak - Database driver for riak database (project homepage is now on bitbucket.org)
goriakpbc - Riak driver using Riak’s protobuf interface
gotyrant - A Go wrapper for tokyo tyrant
go-wikiparse - mediawiki dump parser for working with wikipedia data
hdfs - go bindings for libhdfs
JGDB - JGDB stands for Json Git Database
mig - Simple SQL-based database migrations
mongofixtures - A Go quick and dirty utility for cleaning MongoDB collections and loading fixtures into them.
Neo4j-GO - Neo4j REST Client in Go
neoism - Neo4j graph database client, including Cypher and Transactions support.
null - Package for handling null values in SQL
Optimus Cache Prime - Smart cache preloader for websites with XML sitemaps.
piladb - Lightweight RESTful database engine based on stack data structures.
pravasan - Simple Migration Tool (like rake db:migrate with more flexibility)
remapper - library to convert/map data from one type to another
riako - High level utility methods for interacting with Riak databases
sqlbuilder - SQL query builder with row mapping
sqlf - Create parameterized SQL statements in Go, sprintf style
squirrel - Fluent SQL generation for Go
Sublevel - Separate sections of the same LevelDB
Weed File System - fast distributed key-file store
whisper-go - library for working with whisper databases
xo - CLI to generate idiomatic Go code for databases

Date

date - A package for working with dates.
date - For dates, date ranges, time spans, periods, and time-of-day.
goment - Go time library inspired by Moment.js
gostrftime - strftime(3) like formatting for time.Time
hijri - A small helper library to convert a Hijri date to a Gregorian date according to Ummul Qura calendar.
now - Now is a time toolkit for golang.
tai64 - tai64 and tai64n parsing and formatting
Tideland golib - Timex extensions
tuesday - A Strftime implementation that’s compatible with Ruby’s Time.strftime

Development Tools

cwrap - Go wrapper (binding) generator for C libraries.
demand - Download, build, cache and run a Go app easily.
glib - Bindings for GLib type system
go-callvis - Visualize call graph of your Go program using dot format.
go-size-analyzer - A tool that shows the size of each dependency of a Go binary.
gocog - A code generator that can generate code using any language
godepgraph - Create a dependency graph for a go package
godev - Recompiles and runs your Go code on source change. Also watches all your imports for changes.
godiff - diff file comparison tool with colour html output
GoNB - Interactive Go programming with Jupyter Notebooks.
gonew - A tool to create new Go projects
go-play - A HTML5 web interface for experimenting with Go code. Like https://go.dev/doc/play but runs on your computer
gore - A Go REPL. Featured with line editing, code completion, and more
gorun - Enables Go source files to be used as scripts.
go-spew - Implements a deep pretty printer for Go data structures to aid in debugging
goven - Easily copy code from another project into yours
gowatcher - Reload a specified go program automatically by monitoring a directory.
GoWatch - GoWatch watches your dev folder for modified files, and if a file changes it restarts the process.
goweb - Literate programming tools for Go based on CWEB by Donald Knuth and Silvio Levy.
goyaccfmt - Auto reformat Goyacc source files.
hopwatch - simple debugger for Go
hsandbox - Tool for quick experimentation with Go snippets
Inject - Library for dependency injection in Golang (from Facebook)
liccor - A tool for updating license headers in Go source files
liteide - An go auto build tools and qt-based ide for Go
Livedev - Livedev is a development proxy server that enables live code reloading.
Martian - HTTP proxy designed for use in E2E testing.
nvm-windows - Node.js version manager for Windows
prettybenchcmp - Store and compare benchmarks history locally.
rerun - Rerun watches your binary and all its dependencies so it can rebuild and relaunch when the source changes.
sling - Network traffic simulator and test automation tool to send file requests through the HTTP or TCP protocol, control rate frequency, number of concurrent connections, delays, timeouts, and collect the response time statistics, mean, and percentiles.
syntaxhighlighter - language-independent code syntax highlighting library
toggle - A feature toggle library with built in support for environment variable backed toggling. pluggable backing engine support.
trace - A simple debug tracing

Emacs Tags

egotags - ETags generator
tago1 - etags generator for go that builds with go 1
tago - Emacs TAGS generator for Go source

Distributed/Grid Computing

celeriac - A library for adding support for interacting and monitoring Celery workers, tasks and events in Go
donut - A library for building clustered services in Go
libchan - Go-like channels over the network
locker - A distributed lock service built on top of etcd.
dlock - A native Go distributed lock manager (client and server) using gRPC.
mangos - An implementation of the Scalable Protocols based on nanomsg
redsync - Redis-based distributed mutual exclusion lock implementation
Skynet - Skynet is distributed mesh of processes designed for highly scalable API type service provision.
Tideland golib - Includes a map/reduce library

Documentation

godocdown - Format package documentation (godoc) as GitHub friendly Markdown
golangdoc - Godoc for Golang, support translate.
Mango - Automatically generate unix man pages from Go sources
redoc - Commands documentation for Redis
sphinxcontrib-golangdomain - Sphinx domain for Go
test2doc - Generate documentation for your go units from your unit tests.

Editors

A - A graphical text and binary editor based on Acme
Conception - Conception is an experimental research project, meant to become a modern IDE/Language package. demo video
de - A modal graphical editor with Acme and vi features
Gide - Go IDE built in the go-native GoGi GUI
Go-bbpackage - BBEdit package for Go development
goclipse - An Eclipse-based IDE for Go.
Go conTEXT - Highlighter plugin
godev - Web-based IDE for the Go language
godit - A microemacs-like text editor written in Go.
gofinder - (code) search tool for acme
go-gedit - Google Go language plugin for gedit
golab - go local application builder - a web-based Go ide
Google Go for Idea - Google Go language plugin for Intellij IDEA
micro - A modern and intuitive terminal-based text editor.
tabby - Source code editor
T - An Acme/Sam like text editor
ViGo - A vim-like text editor.
Wide - A Web-based IDE for Teams using Golang.

Email

chasquid - SMTP server written in Go.
gmail - Simple library for sending emails from a Gmail account, for people not interested in dealing with protocol details.
Gomail - A simple and efficient package to send emails.
go-mail - Email utilities including RFC822 messages and Google Mail defaults.
go-ses - Amazon AWS Simple Email Service (SES) API client
go-simple-mail - “Golang package for send email. Support keep alive connection, TLS and SSL. Easy for bulk SMTP.”
Hectane - Lightweight SMTP client including a built-in mail queue backed by on-disk storage.
Inbucket - Inbucket is an email testing service; it will accept messages for any email address and make them available to view via a web interface.
mail.go - Parse email messages
MailHog - Email testing service, inspired by MailCatcher.
MailSlurper - A handy SMTP mail server useful for local and team application development. Slurp mail into oblivion!

Error handling

code.soquee.net/problem Package problem implements errors for HTTP APIs similar to the ones described by RFC7807.
errgo - Error tracing and annotation.
errors - errors augments and error with a file and line number.
errors - The juju/errors package provides an easy way to annotate errors without losing the original error context, and get a stack trace back out of the error for the locations that were recorded.
goerr - Allows to make a separate(modular) and reusable error handlers. Exception-like panic() recover() mechanism using Return(error) and catching err := OR1(..)
hierr - Nesting errors in hierarchy.
panicparse - Parse panics with style.
Space Monkey errors - Go’s missing errors library - stack capture, error hierarchies, error tags
Tideland golib - Detailed error values

Encodings and Character Sets

base58 - Human input-friendly base58 encoding
bencode-go - Encoding and decoding the bencode format used by the BitTorrent peer-to-peer file sharing protocol
bsonrpc - BSON codec for net/rpc
chardet - Charset detection library ported from ICU
charmap - Character encodings in Go
codec-msgpack-binc High Performance and Feature-Rich Idiomatic Go Library providing encode/decode support for multiple binary serialization formats: msgpack
colfer - high-performance binary codec
gobson - BSON (de)serializer
go-charset - Conversion between character sets. Native Go.
go.enmime - MIME email parser library for Go (native)
go-msgpack - Comprehensive MsgPack library for Go, with pack/unpack and net/rpc codec support (DEPRECATED in favor of codec )
gopack - Bit-packing for Go
go-simplejson - a Go package to interact with arbitrary JSON
go-wire - Binary and JSON codec for structures and more
go-xdr - Pure Go implementation of the data representation portion of the External Data Representation (XDR) standard protocol as specified in RFC 4506 (obsoletes RFC 1832 and RFC 1014).
iconv-go - iconv wrapper with Reader and Writer
magicmime – Mime-type detection with Go bindings for libmagic
Mahonia - Character-set conversion library in Go
mimemagic - Detect mime-types automatically based on file contents with no external dependencies
mimemagic - A pure-Go MIME sniffing library/tool based on the FreeDesktop.org spec
msgpack - Msgpack format implementation for Go
msgpack-json - Command-line utilities to convert between msgpack and json
nnz - String and Int primitives that serialize to JSON and SQL null
storable - Write perl storable data
TNetstring - tnetstrings (tagged Netstrings)

File Systems

afero - A File System abstraction system for Go
go.fs - A virtual file system abstraction layer.
poller - Package poller is a file-descriptor multiplexer. It allows concurrent Read and Write operations from and to multiple file-descriptors.
vfsgen - Generates a vfsdata.go file that statically implements the given virtual filesystem.

Games

Bampf - Arcade style game based on the Vu 3D engine.
bloxorz - Solver for bloxorz basic levels
ChessBuddy - Play chess with Go, HTML5, WebSockets and random strangers!
Fergulator - An NES emulator, using SDL and OpenGL
FlappyBird - A simple flappy bird clone written in golang.
godoku - Go Sudoku Solver - example of “share by communicating”
Gongo - A program written in Go that plays Go
gospeccy - A ZX Spectrum 48k Emulator
Ludo Game - Ludo Board game powered by Go on Appengine
pinkman - command line based chess interface to UCI compatible chess engines
Pong - A simple Pong clone written in golang
pong-command - Joke command,ping-like pong.
Steven - A Minecraft client in Go
ukodus - Sudoku solver in Go
WolfenGo - A Wolfenstein3D clone in Go, using OpenGL 2.1
GoChess - Play chess with friends on terminal
Ebitengine - Ebitengine’s simple API allows you to quickly and easily develop 2D games that can be deployed across multiple platforms.

GIS

geojson - Go package to quick and easy create json data in geojson format. description
go-geom - Efficient Open Geo Consortium-style geometries with native Go GeoJSON and WKB encoding and decoding (work-in-progress)
go.geo - Geometry/geography library targeted at online mapping (deprecated by author in favor of his new gis library orb.)
go.geojson - Marshalling and Unmarshalling of GeoJSON objects
gogeos - Go library for spatial data operations and geometric algorithms
go-proj-4 - An interface to the Cartographic Projections Library PROJ.4
go-kml - Google Earth KML generation
go-polyline - Google Maps polyline encoding and decoding
orb - 2d geometry manipulation (length, area, polygon contains, etc.) with geojson, wkb, mvt support
osm - General purpose library for reading, writing and working with OpenStreetMap data
UTM - Bidirectional UTM-WGS84 converter
gdal - Provides a go wrapper for GDAL

Graphics and Audio

accumimage - Variant of image.NRGBA and color.NRGBA that supports accumulation and averaging of colors
AnsiGo - Simple ANSi to PNG converter written in pure Go
Arclight - Arclight is a tool for rendering images
bild - A collection of image processing algorithms in pure Go
bimg - Small Go library for fast image resize and transformation using libvips
blend - Image processing library and rendering toolkit for Go.
bpg - BPG decoder for Go.
chart - Library to generate common chart (pie, bar, strip, scatter, histogram) in different output formats.
cpio - Readers and writers for the CPIO archive file format.
draw2d - This package provide an API to draw 2d geometrical form on images. This library is largely inspired by postscript, cairo, HTML5 canvas.
ebiten - A cross platform open-source game library with which you can develop 2D games with simple API for multi platforms. Cgo/c compiler setup not needed.
egl - egl bindings
es2 - es2 bindings
fastgallery - A fast static image and video web gallery generator
fourcc - Go implementation of FOURCC (four character code) (4CC) identifiers for a video codecs, compression formats, colors, and pixel format used in media files.
freetype-go - a Go implementation of FreeType
glfw 3 - Go bindings for GLFW 3 library
glfw - bindings to the multi-platform library for opening a window, creating an OpenGL context and managing input
glh - OpenGL helper functions to manage text, textures, framebuffers and more
gl - OpenGL bindings using glew
gltf - library for marshaling and unmarshaling glTF
glu - bindings to the OpenGL Utility Library
glui - Wrapper for glfw to simplify displaying an image
gmask - Go adaptation of the Cmask utility for Csound
goalsa - Go bindings for ALSA capture and playback
go-cairo - Go wrapper for the cairo graphics library
gocl - Go OpenCL (gocl) binding, support OpenCL 1.1/1.2/2.0 on Mac/Linux/Windows/Android
go-colorful - Color spaces conversions and other color-space operations
go-csnd6 - Go binding to the Csound6 API
go-csperfthread - Go binding to the CsoundPerformanceThread helper class of the Csound6 API
goexif - Retrieve EXIF metadata from image files
gofb - Go framebuffer library for drawing pixel by pixel
goflac - Go bindings for decoding and encoding FLAC audio with libFLAC
go-gd - Go bindings for GD
GoGL - OpenGL binding generator
go-gnuplot - go bindings for Gnuplot
go-gtk3 - gtk3 bindings for go
go-heatmap - A toolkit for making heatmaps
GoHM - H.265/HEVC HM Video Codec in Go
goHorde - Go Bindings for the Horde3d Rendering engine.
GoMacDraw - A mac implementation of go.wde
go-openal - Experimental OpenAL bindings for Go
go-opencl - A go wrapper to the OpenCL heterogeneous parallel programming library
go-opencv - Go bindings for OpenCV / 2.x API in gocv / 1.x API in opencv
Go-OpenGL - Go bindings for OpenGL
Goop - Audio synthesizer engine
goray - Raytracer written in Go, based on Yafaray
gosc - Pure Go OSC (Open Sound Control) library
go-taglib - Go wrapper for TagLib, an audio meta-data parser
go-tmx - A Go library that reads Tiled’s TMX files
govips - A lightning fast Go image processing and resizing library
GoVisa - H265/HEVC Bitstream Analyzer in Go
go-vlc - Go bindings for libVLC
go.wde - A windowing/drawing/event interface
goxscr - Go rewrites of xscreensaver ports
graphics2d - Path and path transform based 2D graphics package
gst - Go bindings for GStreamer
gumble - Client library for the Mumble VoIP protocol
hgui - Gui toolkit based on http and gtk-webkit.
hsvimage - Support for HSV color models and images
imaginary - Simple and fast HTTP microservice for image resizing and manipulation
imaging - Package imaging provides basic image manipulation functions (resize, rotate, flip, crop, etc.) as well as simplified image loading and saving.
imgproxy - Fast and secure standalone server for resizing and converting remote images
libvlc-go - Go bindings for libVLC 2.X/3.X/4.X used by the VLC media player
merlin - Automatic video encoder
netpbm - Read and write Netpbm images from Go programs
opencv - Go bindings for OpenCV
osmesa - Go bindings for osmesa.
phono - DSP pipeline.
Plotinum - An API for creating plots
portaudio - A Go binding to PortAudio
pulsego - Go binding for PulseAudio
pulse-simple - Go bindings for PulseAudio’s Simple API, for easy audio capture and playback.
rasterx - SVG-standard rendering, rasterization library.
resize - Image resizing with different interpolations.
RiGO - RenderMan Interface implementation in Go.
rpm - Go implementation of the RPM package file format
smartcrop - Content aware image cropping
starfish - A simple Go graphics and user input library, built on SDL
stl - library for reading, writing, and manipulating Stereolithography (.stl) files used in 3D printing
svgo - a library for creating and outputting SVG
tag - a library for reading tag metadata and creating metadata-invariant checksums for audio files: FLAC, all IDv3 variants, and MP4 (ACC, ALAC)
texture - Procedurally generated textures based on the Bryce3D deep texture editor
tga - TARGA image format encoding/decoding library
tiff - Rich TIFF/BigTIFF/GeoTIFF decoder/encoder for Go.
twilio-go - Go client for the Twilio API.
videoinput - Go bindings for VideoInput (Windows).
vu - Virtual Universe. A skeleton 3D engine.
vulkan - Golang Bindings for Vulkan API.
webp - WebP decoder and encoder for Go.
wg - Web Graphics, display real time go graphics in browser, with user input.
window - Optimized moving window for real-time data
xmorph - Warp and morph images

fyne - Cross platform native GUI toolkit based on Material Design
gio - Portable (iOS/tvOS, Android, Linux (Wayland/X11), macOS, Windows, FreeBSD, OpenBSD, WASM) immediate mode GUI
go-fltk - FLTK2 GUI toolkit bindings for Go
imgui-go - Dear ImGui wrapper library for Go
GoGi - Fully native cross-platform GUI toolkit
go-gtk - Bindings for GTK
go-qt5 - QT5 bindings for go
gothic - Tcl/Tk Go bindings
gotk3 - Go bindings for GTK3, requires GTK version 3.8
go.uik - A UI kit for Go, in Go. (project is closed)
go-webkit2 - Go bindings for the WebKitGTK+ v2 API (w/headless browser & JavaScript support)
Gowut - Gowut (Go Web UI Toolkit) is a full-featured, easy to use, platform independent Web UI Toolkit written in pure Go, no platform dependent native code is linked or called.
GXUI - A Go cross platform UI library.
iup - Bindings for IUP
lorca - A small library for building cross-platform HTML5 GUI apps in Go, uses Chrome/Chromium as a UI layer.
mdtwm - Tiling window manager for X
qml - QML support for the Go language
ui - Platform-native GUI library for Go
webview - Tiny cross-platform web UI library. Uses WebKit (Gtk/Cocoa) and MSHTML (Windows)
wingo - A fully-featured window manager written in Go.
Winhello - An example Windows GUI hello world application
wxGo - Go Wrapper for the wxWidgets GUI
xgb - A fork of the x-go-binding featuring support for thread safety and all X extensions.
xgbutil - A utility library to make use of the X Go Binding easier. (Implements EWMH and ICCCM specs, key binding support, etc.)
x-go-binding - bindings for the X windowing system
go-sciter - Bindings for the sciter
go-astilectron - Build cross platform GUI apps with GO and HTML/JS/CSS (powered by Electron)

Hardware

gobot - Golang framework for robotics, drones, and the Internet of Things (IoT).
go.hid - Provides communication with USB Human Interface Devices.
gortlsdr - A librtlsdr wrapper, which turns certain USB DVB-T dongles into a low-cost, general purpose software-defined radio receiver.
hwio - Hardware I/O library for SoC boards including BeagleBone Black and Raspberry Pi.
stressdisk - Stress test your disks / memory cards / USB sticks before trusting your valuable data to them

Language and Linguistics

alpinocorpus-go - A reader and a writer for Alpino corpora.
go-aspell - GNU Aspell spell checking library bindings for Go.
go-edlib - Go string comparison and edit distance algorithms library (Levenshtein, LCS, Hamming, Damerau levenshtein, Jaro-Winkler, etc.) compatible with Unicode.
go-l10n - localization for humans
go-language - A simple language detector using letter frequency data.
goling - String Similarity(Cosine Similarity, Levenshtein Distance), Spell Check, Segmentation
go-ngram - An n-gram is a contiguous sequence of n items from a given sequence of text or speech.
go.stringmetrics - String distance metrics implemented in Go
go-tokenizer - A Text Tokenizer library for Golang
inflect - Word inflection library (similar to Ruby ActiveSupport::Inflector). Singularize(), Pluralize(), Underscore() etc.
libtextcat - A Go wrapper for libtextcat.
nlp - Go Natural Language Processing library supporting LSA (Latent Semantic Analysis).
sego - Chinese language segmenter.
snowball - Snowball stemmers for multiple languages
textcat - N-gram based text categorization, with support for utf-8 and raw text

Logging and Monitoring

colog - CoLog is a prefix-based leveled execution log for Go
cue - Fast and flexible contextual logger. Supports output to file, syslog, structured syslog, stdout/stderr, socket, Loggly, Honeybadger, Opbeat, Rollbar, and Sentry.
epazote - Automated Microservices Supervisor.
factorlog - Really fast, featureful logging infrastructure (supports colors, verbosity, and many formats)
glog - Leveled execution logs for Go
go-logging - Supports different logging backends like syslog, file and memory. Multiple backends can be utilized with different log levels per backend and logger.
gomol - A multi-output logging library designed for outputs that support additional metadata with log messages.
gosrvmon - Self-hosted uptime monitoring system.
graylog-golang - graylog-golang is a full implementation for sending messages in GELF (Graylog Extended Log Format) from Google Go (Golang) to Graylog
haminer - Library and program to parse and forward HAProxy logs
immortal - A *nix cross-platform (OS agnostic) supervisor
jWalterWeatherman - Seamless terminal printing and file logging that s as easy to use as fmt.Println
kemba - A tiny debug logging tool inspired by debug, great for CLI tools and applications.
log4go - Go logging package akin to log4j
logger - Go logging with buffered output and multiple writers
logrus - Structured, pluggable logging for Go with built-in hooks for third-party loggers: Airbrake, Papertrail, Loggly, Sentry…
MailJet Live Event Dashboard - API monitoring in real time.
monkit - A flexible process data collection, metrics, monitoring, instrumentation, and tracing library for Go
Prometheus - Monitoring system and time-series database.
rfw - Rotating file writer - a ’logrotate’-aware file output for use with loggers
sd - Writes to the systemd journal, supports user defined systemd journal fields
seelog - Flexible dispatching, filtering, and formatting
snap - Telemetry framework
spacelog - Hierarchical, leveled, and structured logging library for Go
statsgod - A rewrite of StatsD in Go.
syslog - With this package you can create your own syslog server with your own handlers for different kind of syslog messages
Tideland golib - Flexible logging
timber - Configurable Logger for Go
ul - Provides macOS Sierra/OSX Unified Logging functionality via cgo
vlog - Leveled log on std log for Go

Machine Learning

Anna - Artificial Neural Network Aspiration, aims to be self-learning and self-improving software.
bayesian - A naive bayes classifier.
ctw - Context Tree Weighting and Rissanen-Langdon Arithmetic Coding
Dialex - Dialex is a smart pipe that unscrambles text and makes it machine-readable.
evo - a framework for implementing evolutionary algorithms in Go.
go-algs/maxflow Maxflow (graph-cuts) energy minimization library.
go-galib - Genetic algorithms.
golinear - Linear SVM and logistic regression.
go-mind - A neural network library built in Go
go_ml - Linear Regression, Logistic Regression, Neural Networks, Collaborative Filtering, Gaussian Multivariate Distribution.
gomlx - Accelerated ML and Math Framework for Go (using JIT-compilation with XLA) – PyTorch/Jax/TensorFlow-like for Go.
gonet - Neural Network for Go.
go-porterstemmer - An efficient native Go clean room implementation of the Porter Stemming algorithm.
go-pr - Gaussian classifier.
gorgonia - Neural network primitives library (like Theano or Tensorflow but for Go)
mlwebservicego - Serving machine learning models with Golang, Echo, and Firebase.
ntm - Neural Turing Machines implementation
openai — ChatGPT tokenizer and SDK
paicehusk - Go implementation of the Paice/Husk Stemmer
tfgo - Tensorflow + Go, the gopher way.

Mathematics

bayesian - Naive Bayesian Classification for Go
blas - Go implementation of BLAS (Basic Linear Algebra Subprograms)
cartconvert - cartography functions for the Go programming language
choose - Produce all combinations of M out of N items
clp - Go bindings for the COIN-OR Linear Programming (CLP) library
Cvx - Convex optimization package, port of CVXOPT python package
decimal - A high-performance arbitrary-precision decimal floating-point arithmetic package
dice - Dice rolling library
evaler - A simple floating point arithmetic expression evaluator
fixed - A fixed point (Q32.32 format) math library
geom - 2d geometry
gini - SAT Solver/Boolean Logic Tools
gochipmunk - Go bindings to the Chipmunk Physics library
gocomplex - a complex number library
godec - multi-precision decimal arithmetic
gofd - concurrent finite domain constraint solver.
go-fftw - Go bindings for FFTW - The Fastest Fourier Transform in the West
go-fn - Special functions that would not fit in “math” pkg
gographviz - Graphviz DOT language parser for Go
go-gt - Graph theory algorithms
go-humanize - Formatting numbers for humans.
golibs/xmath - a collection of math functions (mostly mean algorithms)
go-lm - Linear models in Go. Provides WLS and regression with t residuals via a cgo -> BLAS/LAPACK interface.
go.mahalanobis - Naive implementation of the Mahalanobis distance using go.matrix
gomat - lightweight FAST matrix and vector math
go_matrix_cuda - GPU-Accelerated Linear Algebra Libraries based in CUDA
go.matrix - a linear algebra package
gonum - Scientific packages (linear algebra, BLAS, LAPACK, differentiation, plots, linear programming, statistics, …)
go-symexpr - Symbolic math as an AST with derivatives, simplification, and non-linear regression
gsl - GNU Scientific Library bindings
humanize - formats large numbers into human readable small numbers
interval - Package interval handles sets of ordered values laying between two, possibly infinite, bounds.
mathutil - Package mathutil provides utilities supplementing the standard ‘math’ and ‘rand’ packages.
mt19937_64 - Mersenne Twister int64 random source
permutation - Package permutation generates permutations of the indices of a slice
polyclip.go - Go implementation of algorithm for Boolean operations on 2D polygons
primegen.go - Sieve of Atkin prime number generator
prime - Go version of Segmented Sieve and non Segmented sieve to produce prime numbers
primes - Simple functionality for working with prime numbers.
pso-go - A library of PSO (Particle Swarm Optimization) for Go.
rand - 64-bit version of the math/rand package with Mersenne twister support.
roger - A Go client for the RServer, allowing you to invoke R programs from Go.
sparse - Go Sparse matrix formats for linear algebra supporting scientific and machine learning applications, compatible with gonum matrix libraries.
statistics - GNU GSL Statistics (GPLv3)
stats - A statistics package with common functions missing from the Golang standard library.
Tideland golib - Numerics package for statistcal analysis
Units - Implements types, units, converter functions and some mathematics for some common physical types. lib
vector - A small vector lib.

Microservices

car_registration - API wrapper for worldwide car registration data
go-doudou - A gossip protocol and OpenAPI 3.0 spec based decentralized microservice framework. Built-in go-doudou cli focusing on low-code and rapid dev can power up your productivity.
gokit - The Go Kit microservice framework (and author interview).
go-micro - Go Micro is a microservices library which provides the fundamental building blocks for writing fault tolerant distributed systems at scale.
kite - RPC server and client framework.

Miscellaneous

atexit - Simple atexit library
bíogo - Basic bioinformatics functions for the Go language.
Breaker - Breaker enables graceful degraded mode operations by means of wrapping unreliable interservice interface points with circuit breaker primitives.
btcrpcclient - A Websocket-enabled Bitcoin JSON-RPC client.
cast - Safe and easy casting from one type to another in Go
CGRates - Rating system designed to be used in telecom carriers world
cpu - A Go package that reports processor topology
cron - A library for running jobs (funcs) on a cron-formatted schedule
cvt - Easy and safe convert any value to another type
daemonigo - A simple library to daemonize Go applications.
dbus-go - D-Bus Go library
desktop - Open file/uri with default application (cross platform)
devboard - Kanban board application based on Simple-Khanban
dioder-api - An API to IKEA dioder LED-strips
doublejump - A revamped Google’s jump consistent hash
dump - An utility that dumps Go variables, similar to PHP’s var_dump
elPrep - A high-performance tool for preparing sequence alignment/map files in DNA sequencing pipelines
env - Easily pull environment variables with defaults
epub - Bindings for libepub to read epub content.
EventBus - Lightweight event bus with async compatibility for Go .
faker - Generate fake data, names, text, addresses, etc.
fasturl - High performance URL parsing library using a Ragel state machine.
fsnotify - File system notifications for Go
functional - Functional programming library including a lazy list implementation and some of the most usual functions.
GCSE - Go code search engine. source
generate - runs go generate recursively on a specified path or environment variable and can filter by regex.
go-amiando - Wrapper for the Amiando event management API
go-bit - An efficient and comprehensive bitset implementation with utility bit functions.
go-bitops - common bit operations for 32/64 bit integer
go-business-creditcard - Validate/generate credit card checksums/names.
gochem - A computational chemistry/biochemistry library.
gocsv - Library for CSV parsing and emitting
go.dbus - Native Go library for D-Bus
go-ean - A minimal utility library for validating EAN-8 and EAN-13 and calculating checksums.
go-eco - Functions for use in ecology
go-erx - Extended error reporting library
go-eventsocket - An event socket client/server library for the FreeSWITCH telephony platform.
GoFakeIt - Fake Data Generator. 65+ different variations and examples for each
go-fann - Go bindings for FANN, library for artificial neural networks
GoFlow - Flow-based and dataflow programming library for Go
goga - A genetic algorithm framework
gogobject - GObject-introspection based bindings generator
go-idn - a project to bring IDN support to Go, feature compatible with libidn
GoLCS - Solve Longest Common Sequence problem in go
golibs/as - Converting data types
golife - Implementation of Game of Life for command line
go-magic - A Go wrapper for libmagic
go-magic - Simple interface to libmagic for Go Programming Language
go-metrics - Go port of Coda Hale’s Metrics library
gommap - gommap enables Go programs to directly work with memory mapped files and devices in a very efficient way
gomusicbrainz - MusicBrainz WS2 client library
goneuro - Go driver for NeuroSky devices.
goNI488 - A Go wrapper around National Instruments NI488.2 General Purpose Interface Bus (GPIB) driver.
go-osx-plist - CoreFoundation Property List support for Go
go-papi - Go interface to the PAPI performance API
go.pcsclite - Go wrapper for pcsc-lite
Go-PhysicsFS - Go bindings for the PhysicsFS archive-access abstraction library.
go.pipeline - Library that emulates Unix pipelines
go-pkg-mpd - A library to access the MPD music daemon
go-pkg-xmlx - Extension to the standard Go XML package. Maintains a node tree that allows forward/backwards browser and exposes some simpel single/multi-node search functions
goplan9 - libraries for interacting with Plan 9
goPromise - Scheme-like delayed evaluation for Go
gopensky - Go client for opensky network live’s API (airspace ADS-B and Mode S data)
go-qrand - Go client for quantum random bit generator service at random.irb.hr
goraphing - A tool to generate a simple graph data structures from JSON data files
go-selenium - Selenium WebDriver client for Go
go-semvar - Semantic versions (see http:/semver.org)
go-serial - Go binding to libserialport for serial port functionality (cgo).
goST - A steam properties (steam table) library written for Go. This was designed as a native go equivalent to XSteam.
go-taskstats - Go interface for Linux taskstats
gotenv - Loads environment variables from .env file
Gotgo - A Go preprocessor that provides an implementation of generics
go-translate - Google Language Translate library
go-uuid - Universal Unique IDentifier generator and parser
gouuid - Pure Go UUID v3, 4 and 5 generator compatible with RFC4122
go-villa - Some miscellaneous wrapper and small algorithms.(wrappers to slices, priority queues, path related apis, a string set type)
go-wkhtmltopdf - wkhtmltopdf Go bindings and high level interface for HTML to PDF conversion.
Hranoprovod - Command-line calorie tracking
lineup - A minimalistic message queue server
mitigation - Package mitigation provides the possibility to prevent damage caused by bugs or exploits.
nject - type safe dependency injection
nma.go - A NotifyMyAndroid client for go.
notify - File system event notification library with API similar to os/signal.
pargo - A library for parallel programming in Go.
passwd - A parser for the /etc/passwd file
pool - A generic worker pool
procfile - A Procfile parser
Prometheus Instrumentation/Metrics Client - This is a whitebox instrumentation framework for servers written in Go. It exposes programmatically-generated metrics automatically for use in the Prometheus time series collection and post-processing environment.
randat - Devel tool for generating random bytestrings and encoding files in code-friendly forms
recycler - A more flexible object recycling system than sync.Pool. Provides constructors and destructors for the objects as well as control over the length the free.
replaykit - A library for replaying time series data.
serial - Serial ports API (pure Go)
sio - Package sio lets you access old serial junk. It’s a go-gettable fork and modification of dustin’s rs232 package.
stats - Monitors Go MemStats + System stats such as Memory, Swap and CPU and sends via UDP anywhere you want for logging etc…
symutils - Various tools and libraries to handle symbolic links
toktok - Creates and resolves unique, typo & error-resilient, human-readable tokens
twitterfetcher - A tool to make Twitter API requests using the Application-only authentication
udis86 - Go bindings for libudis86
ugo - underscore.js like toolbox for Go
Vboxgo - user-like access to VirtualBox VMs from Go.
vk - unofficial vk.com API wrapper (vk.com russian social network)
WUID - An extremely fast unique number generator, 10-135 times faster than UUID.
Wukong - A highly extensible full-text search engine written in Go.
xdg - Go implementation of the XDG Base Directory Specification and XDG user directories.
xplor - Files tree browser for p9p acme
yubigo - Yubikey OTP validation and authentication API client.

Music

gmask - Go adaptation of the Cmask utility for Csound
go-csnd6 - Go binding to the Csound6 API
go-csperfthread - Go binding to the CsoundPerformanceThread helper class of the Csound6 API
go-libshout - Go bindings for libshout
gompd - A client interface for the MPD (Music Player Daemon)
launchpad - A Go client for Novation Launchpad
portmidi - Go bindings for libportmidi

Networking

DNS

bitz - BitMessage client node and library
dingo - A DNS client in Go that supports Google DNS over HTTPS
dns - client and server implementations in Go
dns - A DNS library in Go
dnsimple - an interface to the DNSimple API
dnss - DNS secure proxy, supports DNS over HTTPS and GRPC
domainerator - Command line tool to combine wordlist and suffixes/TLDs into domain names and check if they are registered or not.
dyndnscd - a configurable dyndns client
GeoDNS - geo-aware authoritative DNS server
grong - Small authoritative DNS name server
hostsfile - /etc/hostsfile reverse lookup IP => names
lib/dns - The DNS library for client or server with support UDP, TCP, and DNS over HTTPS
mdns - Multicast DNS library for Go
rescached - DNS resolver cache daemon

FTP

ftp4go - An FTP client for Go, started as a port of the standard Python FTP client library
ftp - Package ftp provides a minimal FTP client as defined in RFC 959
ftps - An implementation of the FTPS protocol
goftp - A FTP client library

HTTP

apiproxy - proxy for HTTP/REST APIs with configurable cache timeouts
boom - HTTP(s) benchmarking tool, Apache Benchmark replacement
Ddosify - High-performance load testing tool, written in Golang
eventsource - Server-sent events for net/http server.
fasthttp - Fast HTTP package for Go
gbench - HTTP(s) Load Testing And Benchmarking Tool inspired by Apache Benchmark and Siege.
gobench - HTTP/HTTPS load test and benchmark tool
go-curl - libcurl binding that supports go func callbacks
goproxy - a programmable HTTP proxy.
gostax - A Streaming API for XML (StAX) in go
handlers - Collection of useful HTTP middlewares.
HTTPLab - HTTPLabs let you inspect HTTP requests and forge responses.
httpmock - Easy mocking of HTTP responses from external resources
httptail - tools push stdout/stderr to http chunked
sling - A Go HTTP client library for creating and sending API requests.
stress - Replacement of ApacheBench(ab), support for transactional requests, support for command line and package references to HTTP stress testing tool.

IMAP

go-imap - An IMAP library for clients and servers.
go-imap - IMAP client library
go-imap - Implementation of IMAP4rev1 client, as described in RFC 3501

Instant Messaging

gobir - Extensible IRC bot with channel administration, seen support, and go documentation querying
goexmpp - XMPP client implementation
goirc - event-based stateful IRC client framework
go-irc - Simple IRC client library
gorobot - a modular IRC bot
go-xmpp - XMPP client library
hanu - Framework for writing Slack bots
ircflu - IRC bot with support for commands, scripting and web-hooks
irc.go - Go IRC bot framework
mellium.im/xmpp a low-level XMPP client and server library focusing on good documentation and a clean, usable API
sirius - [link is broken] A fast and ultra-lightweight chat server written in Go
xmpp-client - an XMPP client with OTR (off-the-record) support

NNTP

go-nntp - An NNTP client and server library for go

Protocol Buffers

gogoprotobuf - another Go implementation of Protocol Buffers, but with extensions and code generation plugins.
golang_protobuf_extensions - Protocol Buffer extensions to support streaming message encoding and decoding.
goprotobuf - the Go implementation of Google’s Protocol Buffers
protorpc - Google Protocol Buffers RPC for Go and C++

rsync

replican-sync - An rsync algorithm implementation in Go
Rsync - Rsync algorithm as a Go library

Telnet

telnet - Package telnet provides TELNET and TELNETS client and server implementations, for the Go programming language, in a style similar to the “net/http” library (that is part of the Go standard library) including support for “middleware”; TELNETS is secure TELNET, with the TELNET protocol over a secured TLS (or SSL) connection.
telnet - A simple interface for interacting with Telnet connection
telnets - A client for the TELNETS (secure TELNET) protocol.

VNC

glibvnc - Go wrapper using CGO for the libvnc library.

Websockets

Gorilla WebSocket - WebSocket protocol implementation
lib/websocket - A library for writing websocket client and server (using epoll)
websocketd - HTTP server that converts STDIN/STDOUT program into WebSockets service. Also handles HTML and CGI.
ws-cli - WebSocket command line client
wst - A dead simple WebSocket tester

ZeroMQ

goczmq - Wrapper for the CZMQv3 interface - blog post
gozmq - Go Bindings for 0mq (zeromq/zmq)
zmq2 - A Go interface to ZeroMQ (zmq, 0MQ) version 2.
zmq3 - A Go interface to ZeroMQ (zmq, 0MQ) version 3.
zmq4 - A Go interface to ZeroMQ (zmq, 0MQ) version 4.

Misc Networking

betwixt - Betwixt implements the OMA Lightweight M2M (LWM2M) protocol for Device Management and Monitoring
canopus - CoAP Client/Server implementation (RFC 7252)
chunkedreader - A light weight library for reading continuous fixed sized messages from TCP streams.
circle - Go interface to the libcircle distributed-queue API
createsend-go - API client for Campaign Monitor (email campaign service)
cwmp-proxy - Reverse cwmp proxy
dmrgo - Library for with Hadoop Streaming map/reduce
doozerconfig - Go package for managing json-encoded configuration in Doozer
doozerd - A consistent distributed data store
endless Zero downtime restarts for go servers (Drop in replacement for http.ListenAndServe/TLS)
gearman-go - A native implementation for Gearman API with Go.
Glue - Robust Go and Javascript Socket Library (Alternative to Socket.io)
goagain - zero-downtime restarts in Go
Go Ajax - Go Ajax is a JSON-RPC implementation designed to create AJAX powered websites.
gobeanstalk - Go Beanstalkd client library
go-camo - Go http image proxy (camo clone) to route images through SSL
go-dbus - A library to connect to the D-bus messaging system
go-diameter - Diameter stack and Base Protocol (RFC 6733)
go-flowrate - Data transfer rate control (monitoring and limiting)
gogammu - Library for sending and receiving SMS
go-icap - ICAP (Internet Content Adaptation Protocol) server library
Gollum - A n:m multiplexer that gathers messages from different sources and broadcasts them to a set of destinations.
go-nat-pmp - A client for the NAT-PMP protocol used in Apple and open-source routers
gonetbench - Simple TCP benchmarking tool
gonetcheck - package for checking general internet access
goodhosts - Simple hosts file (/etc/hosts) management in Go
gopacket - Packet encoding/decoding, pcap/pfring/afpacket support, TCP assembly, and more!
gopcap - A simple wrapper around libpcap
goq - A persistent message queue written in Go.
goradius - A Radius client written in Go
go-rpcgen - ProtoBuf RPC binding generator for net/rpc and AppEngine
gorpc - RPC optimized for high load
GoRTP - RTP / RTCP stack implementation for Go
GoSIPs - SIP (Session Initiation Protocol) Stack in Go
go-smpp - SMPP 3.4 protocol implementation
gosndfile - Go binding for libsndfile
gosnmp - an SNMP library written in GoLang.
go-socket.io - A Socket.IO backend implementation written in Go
gosocks - A SOCKS (SOCKS4, SOCKS4A and SOCKS5) proxy client library in Go.
go-sslterminator - SSL terminator proxy
go-statsd-client - Go statsd client library
Grumble - Mumble (VoIP) server implementation
handlersocket-go - Go native library to connect to HandlerSocket interface of InnoDB tables
HomeControl - an implementation of Apple’s HomeKit Accessory Protocol (HAP)
Hprose - Hprose is a High Performance Remote Object Service Engine.
httpfstream - streaming append and follow of HTTP resources (using WebSockets)
humanize-bytes - Command-line utilities to convert “MiB” etc to raw numbers, and back
ipaddress - Convenient ip address functions: ip -> int, int -> ip, and IPNet broadcast address
iris-go - Go binding for the Iris decentralized messaging framework.
iris - Peer-to-peer messaging for back-end decentralization.
kafka.go - Producer & Consumer for the Kafka messaging system
lcvpn - Decentralized VPN implementation
ldap - Basic LDAP v3 functionality for the GO programming language.
mbxchan - An easy communication between distributed Go applications using standard Go channels and remote procedure calls.
mqtt - MQTT stack in Go
nagiosplugin - package for writing Nagios/monitoring plugins
NATS - NATS distributed messaging system client for Go
netsnail - A low-bandwidth simulator
netstat-nat - Display NAT entries on Linux systems
netutils - Simple interface for turning TCP Sockets into channels.
norm - reliable UDP using multicast and unicast sockets
npipe - a pure Go wrapper for Windows named pipes
opendap - Go wrapper for Openldap
pusher-http-go - Go library for interacting with the Pusher Realtime API
QRP - QRP is a simple packet-based RPC protocol designed as a simple alternative to Go’s rpc, that can run over UDP
remotize - A remotize package and command that helps remotizing methods without having to chaneg their signatures for rpc
Resgate - A Realtime + REST API Gateway for NATS to create web APIs with live data
rs232 - Serial interface for those of us who still have modems (or arduinos)
rss - RSS parsing library.
seamless - Reverse TCP Proxy with HTTP management API
sftp - SSH File Transfer Protocol v3 as defined in draft-ietf-secsh-filexfer-02.txt.
shell2http - Executing shell commands via simple http server
sockjs-go - Implements server side counterpart for the SockJS-client browser library.
SOCKS5 Server - Scalable SOCKS5 server with Access Control Lists
spark - Emergency web server (for static files)
spdy - SPDY library, wired into net/http, currently supporting servers only.
statsd-go - Statsd implementation in Go, forked from gographite, which submits to Ganglia
stompngo_examples - Examples for stompngo.
stompngo - A Stomp 1.1 Compliant Client
tcp_fallback - A TCP proxy implementing a simple fallback mechanism.
tcpmeter - A TCP throughput measuring tool
toxiproxy - Framework for simulating network conditions.
traceroute - A traceroute implementation
traefik - Modern, reverse proxy in Go
Uniqush - A free and open source software which provides a unified push service for server-side notification to apps on mobile devices.
uritemplates - A level 4 implementation of URI Templates (RFC 6570)
VDED - Vector Delta Engine Daemon - track deltas in ever-increasing values (written in Go)
zero-downtime-daemon - Configurable zero downtime daemon (Hot Update) framework for any kind of TCP,HTTP,FCGI services
zeroupgrade - Upgrades network servers with zero downtime

Operating System Interfaces

Go FUSE file system library - From-scratch implementation of the kernel-userspace communication protocol based on Russ Cox’.
Go-fuse - Library to write FUSE filesystems in Go
go-nbd - Library to write block devices for Linux in Go.
go-osx-xattr - Package xattr wraps OS X functions to manipulate the extended attributes of a file, directory and symbolic link.
inspect/os - Metrics library for operating system measurements (Linux/MacOSX)
service - Service will install / un-install, start / stop, and run a program as a service (daemon) on Windows/Linux and OSX.

Option Types

opt - Package opt implements an optional-type, for the Go programming language. In other programming languages, an optional-type might be know as: a option type, or a maybe type.

Other Random Toys, Experiments and Example Code

goconc - A collection of useful concurrency idioms and functions for Go, compiled
go-crazy - An experimental source-to-source compiler for go
go-gtk-demo - A demonstration of how to use GTK+ with Go.
go-hashmap - A hash table in pure go as an experiment in Go performance
golang-examples - A bunch of golang examples
GolangSortingVisualization - A visualization of various sorting algorithms in Go
golibs - A collection of tiny go packages (and also a test repo for various CI and coverage services)
goplay - A bunch of random small programs in Go
lifegame-on-golang - Game of Life in Go
linear - Playing around with the linear algebra
pl0 - PL/0 front end, compiler and VM. .
project euler in go - Solutions to Project Euler in Go also
shadergo - shader test using Go
travisci-golang-example - Travis-CI example for Go

DHT - Kademlia DHT node used by Taipei-Torrent, compatible with BitTorrent
DHT - BitTorrent DHT Protocol && DHT Spider.
ed2kcrawler - eDonkey2000 link crawler
gop2p - A simple p2p app to learn Go
go-p2p - P2P module for blockchains and more
GoTella - A Go implementation of the Gnutella Protocol
Rain - BitTorrent client and library
Taipei-Torrent - A BitTorrent client
Tendermint - P2P Byzantine-Fault-Tolerant consensus & blockchain stack
wgo - A simple BitTorrent client based in part on the Taipei-Torrent and gobit code

Programming

go-clang - cgo bindings to the C-API of libclang
godeferred - port of jsdeferred: http://cho45.stfuawsc.com/jsdeferred/
go-galib - a library of Genetic Algorithms
go-intset - a library to work with bounded sets of integers, including multiple alternative implementations
go-parse - a Parsec-like parsing library
go-slices - Helper functions for manipulating slices in Go just like the official “strings” package provides
sh - a shell/bash parser and formatter
Shuffle - Implementation of the Fisher Yates shuffle (or Knuth shuffle) in Go.

Resource Embedding

fileb0x - Simple tool to embed files in go with focus on “customization” and ease to use.
go-bindata - Package that converts any file into managable Go source code.
go-resources - Unfancy resources embedding with Go.
go.rice - go.rice is a Go package that makes working with resources such as html,js,css,images and templates very easy.
implant - implant allows embedding static resources, from a series of directories (recursively).
statics - Embeds static resources into go files for single binary compilation + works with http.FileSystem + symlinks.

RPC

gowsdl - WSDL code generation
gRPC - Google’s multi-language RPC framework with Go support

Scanner and Parser Generators

ebnf2y - Utility for converting EBNF grammars into yacc compatible skeleton .y files.
flexgo - A version of flex that can produce Go code.
fsm - FSM (NFA, DFA) utilities.
gocc - Go Compiler Compiler
golex - Lex/flex like fast (DFA) scanners generator.
gopp - Go Parser Parser
goyacc - Goyacc is a version of yacc generating Go parsers.
lexmachine - Lexical Analysis Framework for Golang
Ragel - State Machine Compiler
y - Package y converts .y (yacc) source files to data suitable for a parser generator.
yy - yacc to yacc compiler.

Security

acme - ACME certificate acquisition tool
acra - SQL database protection suite: strong selective encryption, SQL injections prevention, intrusion detection system
casbin - An authorization library that supports access control models like MAC, RBAC, ABAC
docker-slim - Container security and optimization
gryffin - A large scale security scanner by Yahoo!
hyperfox - a security tool for proxying and recording HTTP and HTTPs communications on a LAN
lego - Let’s Encrypt client and ACME library
webseclab - a sample set of web security test cases and a toolkit to construct new ones

Simulation Modeling

godes - Library for building discrete event simulation models

Sorting

bubble-sort - minimal implementation of the bubble-sort algorithm
cocktail-shaker-sort - minimal implementation of the cocktail-shaker-sort algorithm
funnelsort - Lazy funnel sort – a cache-oblivious sorting algorithm
Sortutil - Nested, case-insensitive, and reverse sorting for Go.
sortutil - Utilities supplemental to the Go standard “sort” package
tarjan - Graph loop detection function based on Tarjan’s algorithm
timsort - Fast, stable sort, uses external comparator or sort.Interface

Source Code Management

Gitfile - A lightweight package manager for installing git repos
go-deps - Analyzes and recursively installs Go package deps (library functionality similar to go get)
go-diff - A diff command for go language showing semantic differences of two go source files.
gogitver - Embeds a git tag (version string) into your application
go-many-git - Manage and run commands across multiple git repositories
go-pkgs - Finds all matching packages in all of the GOPATH trees (library functionality similar to go list all)
go-vcs - clone and check out revs of VCS repositories (git and hg support)
go-vcsurl - Lenient VCS repository URL parsing library
hggofmt - A Mercurial/hg extension with a hook to
nut - Nut is a tool to manage versioned Go source code packages, called “nuts”.
vcstool - VCS abstraction tool

Storage

libStorage - an open source, platform agnostic, storage provisioning and orchestration framework, model, and API
Minio - Object Storage compatible with Amazon S3 API
OpenEBS - Containerized, Open source block storage for your containers,integrated tightly into K8S and other environments and based on distributed block storage and containerization of storage control
storage - An application-oriented unified storage layer for Golang

Strings and Text

allot - Placeholder and wildcard text parsing for CLI tools and bots
asciidoctor-go - Native Go module for parsing and converting asciidoc markup language.
awk - Easy AWK-style text processing in Go
binarydist - Binary diff and patch
Black Friday - A markdown processor
codename-generator - A codename generator meant for naming software releases
columnize - format slice or array into aligned columns
csvplus - Extends the standard Go encoding/csv package with fluent interface, lazy stream operations, indices and joins.
csvutil - A heavy duty CSV reading and writing library.
dgohash - Collection of string hashing functions, including Murmur3 and others
douceur - A simple CSS parser and inliner in Go.
dsv - A library for working with delimited separated value (DSV).
flux - Fluent Regular Expressions in golang
frontmatter - Go library for detecting and decoding various content front matter formats.
genex - Expansion of Regular Expressions
gettext-go - GNU’s gettext support, written in pure Go
gettext - Golang bindings for gettext; Feature complete, cgo
goagrep - fast fuzzy string matching using precomputation
go-colortext - Change the color of the text and background in the console, working both in Windows and other systems.
go-guess - Go wrapper for libguess
goini - A go library to parse INI files
golorem - lorem ipsum generator
go-migemo - migemo extension for go (Japanese incremental text search)
go-ngram N-gram index for Go
goregen - A Go library for generating random strings from regular expressions.
goskirt - Upskirt markdown library bindings for Go
gosphinx - A Go client interface to the Sphinx standalone full-text search engine
govalidator - Package of string validators and sanitizers
goKMP - String-matching in Go using the Knuth Morris Pratt algorithm
hangul - Handy tools to manipulate Korean character
html2text - Golang HTML to text conversion library
intern - Map strings to symbols for constant-time comparisons
kasia.go - Templating system for HTML and other text documents
kview - Simple wrapper for kasia.go templates. It helps to modularize content of a website
liquid - A complete implementation of Shopify Liquid templates
logparse - Parser for most common log formats
NTemplate - Nested Templates
parse - PEG parser that uses reflection to define grammar
peg - Parsing Expression Grammer Parser
pigeon - Parsing Expression Grammar (PEG) Parser generator for Go
plural - No-fuss plurals for formatting both countable and continuous ranges of values.
polyglot - String translation utilities for Go
pretty - Pretty-printing for go values
raymond - A complete handlebars implementation in Go.
rubex - A simple regular expression library that supports Ruby’s regex syntax. It is faster than Regexp.
sanitize - Package sanitize provides functions for sanitizing html and text.
scanner - A text scanner that parses primitive types, analogous to Java’s
segment - An implementation of Norvig’s recursive word segmentation algorithm
sprig - Template functions for Go templates.
strftime - strftime implementation
strit - Package strit introduces a new type of string iterator, as well as a number of iterator constructors, wrappers and combinators.
strogonoff - Stenography with Go
strutil - Golang metrics for calculating string similarity and other string utility functions.
strutil - Package strutil collects utils supplemental to the standard strings package.
text - Text paragraph wrapping and formatting
Tideland golib - Stringex package for statistical analysis
TySug - Alternative suggestions with respect to keyboard layouts.
useragent - User agent string parser
xurls - Extract urls from text

Testing

assert - Assert for go test.
assert - Handy assert package.
assert - Basic Assertion Library used along side native go testing, with building blocks for custom assertions
assert - JUnit-like asserts with excellent error messages
biff - Bifurcation testing framework, BDD compatible.
charlatan - Tool to generate fake interface implementations for tests.
code.soquee.net/testlog A log.Logger that proxies to the Log function on a testing.T so that logging only shows up on tests that failed, grouped under the test.
conex - Docker containers for integration tests
counterfeiter - Tool for generating self-contained and type-safe mocks.
downtest - Automatically run tests for all known downstream consumers of a Go package.
ginkgo - BDD Testing Framework for Go.
go2xunit - Convert “go test -v” output to xunit XML output
go-assert - Testing utils for Go.
goautotest - Automatically run unit tests when code changes are made
goblin - Minimal and Beautiful Go testing framework
Gocheck - Rich test framework with suites, fixtures, assertions, good error reporting, etc
GoConvey - Browser-based reporting, uses go test, supports traditional Go tests, clean DSL
gocov - Code coverage testing/analysis tool
gomega - Ginkgo’s Preferred Matcher Library.
gomock - a mocking framework for Go.
GoSpec - a BDD framework
gospecify - another BDD framework
go-stat - performant instrumentation/profiling for Go
go-tap - TAP (Test Anything Protocol) parser in Go
go-testdeep - Extremely flexible deep comparison, extends the testing package
go-test-report - Captures go test output and parses it into a single self-contained HTML file.
gotestsum - a test runner with customizable and colored output
gotest.tools - a collection of packages for writing readable tests
gounit - xunit for Go
GSpec - Expressive, reliable, concurrent and extensible Go test framework that makes it productive to organize and verify the mind model of software.
Gremlins - A mutation testing tool for Go.
httpexpect - Concise, declarative, and easy to use end-to-end HTTP and REST API testing
make.go.mock - Generates type-safe mocks for Go interfaces and functions.
mspec - BDD framework that frees you to Stub and Spec your code first with natural BDD language.
muxy - Simulating real-world distributed system failures.
Nitro - A quick and simple profiler For Go
Pegomock - a mocking framework based on golang/mock, but uses a DSL closely related to Mockito.
rapid - property-based testing library with integrated shrinking
terst - A terse, easy-to-use testing library for Go
test2doc - Generate documentation for your go units from your unit tests.
testfixtures - Rails’ like test fixtures for testing database driven apps.
testflight - Painless http testing in Go
Testify - A set of packages that provide many tools for testifying that your code will behave as you intend.
ut - Awesome mocks without magic.

Transpiler

c4go - Transpiling C code to Go code.
f4go - Transpiling Fortran code to Go code.

Validation

validator - Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving
validation - Simple independent struct/key-value validation

Version Control

gitea - Git with a cup of tea, painless self-hosted git service
git (in go) - Minimal working git client in Go
gogs - Self-hosting Git Server in Go
semver - Semantic Versioning (SemVer) library

Virtual Machines and Languages

agora - A dynamically typed, garbage collected, embeddable programming language built with Go
anko - Scriptable interpreter written in golang
evalfilter - Embedded evaluation engine for filtering objects.
expr - Expression evaluator with static typing
forego - Forth virtual machine
Gelo - Extensible, embeddable interpreter
Gentee - Embeddable scripting programming language
GoAwk - An implementation of awk in golang.
GoBASIC - An embeddable BASIC interpreter written in golang.
GoEmPHP - This package is built for Embedding PHP into Go
goenv - Create an isolated environment where you install Go packages, binaries, or even C libraries. Very similar to virtualenv for Python.
GoForth - A simple Forth parser
Goja - ECMAScript 5.1(+) implementation written in Go (otto fork with byte code compiler)
golem - A general purpose, interpreted scripting language.
golemon - A port of the Lemon parser-generator
GoLightly - A flexible and lightweight virtual machine with runtime-configurable instruction set
goll1e - An LL(1) parser generator for the Go programming language.
Golog - Prolog interpreter in Go
golua - A fork of GoLua that works on current releases of Go
go-lua - Shopify’s lua interpreter
gomruby - mruby (mini Ruby) bindings for Go
gopher-lua - A Lua 5.1 VM and compiler written in Go
go-php - PHP bindings for Go
go-python - go bindings for CPython C-API
gotcl - Tcl interpreter in Go
go-v8 - V8 JavaScript engine bindings for Go
go.vm - Simple virtual machine which interprets bytecode.
Hivemind - Process manager for Procfile-based applications
LispEx - A dialect of Lisp extended to support for concurrent programming, written in Go.
Minima - A language implemented in Go
ngaro - A ngaro virtual machine to run retroForth images
otto - A JavaScript parser and interpreter written natively in Go
Overmind - Process manager for Procfile-based applications and tmux
py4go - Python 3 bindings for Go
RubyGoLightly - An experimental port of TinyRb to Go
Scriggo - A Go interpreter and a template engine with Go as scripting language
v8 - V8 JavaScript engine bindings for Go (supports V8 builds at least up to 5.8.244)
Yaegi - A complete Go interpreter in Go

Web Applications

Caddy - A fast, capable, general-purpose HTTP/2 web server that’s easy to use
Dataflowkit - Web scraping Service to turn websites into structured data.
Digestw - A Web Application - Twitter’s Timeline Digest
fabio - A fast zero-conf load balancing HTTP router for microservices.
Filestash - A web client for SFTP, S3, FTP, WebDAV, Git, Minio, LDAP, Caldav, Carddav, Mysql, Backblaze, …
fourohfourfound - A fallback HTTP server that may redirect requests with runtime configurable redirections
Fragmenta - A CMS built in Go
freegeoip - IP geolocation web service (web server of freegeoip.net)
Freyr - Server for storing and serving readings from plant environment sensors. Integrates Golang API with ReactJS web app; uses Docker for testing/deployment.
goals-calendar - A web-based Seinfeld calendar implemented in Go
goblog - A static blog engine
gocrawl - A polite, slim and concurrent web crawler.
goflash - Flash player implementation in Go language
gogallery - simple web server with an emphasis on easily browsing images
gojekyll - A golang clone of the Jekyll static site generator
goof - A simple http server to exchange files over http (upload/download)
gopages - A php-like web framework that allows embedding Go code in web pages
go_spider - A flexible ,modularization and concurrent web crawler framework.
GoURLShortener - A frontend for the http://is.gd/ URL shortener
gowall - A website and user system
grabbit - A lightweight transactional message bus on top of RabbitMQ
httpfolder - A http server to exchange files over http with basic authentication (upload/download)
Hugo - A fast and flexible static site generator implemented in Go
Já Vai Tarde - Unfollows monitoring for Twitter
kurz.go - a url shortener based on web.go and redis
Monsti - Resource friendly flat file CMS for private and small business sites.
now.go - A simple HTTP-based to-do queue.
Peach - A web server for multi-language, real-time synced and searchable documentation.
Presento - The simplest possible cross-platform remote control for the presentations
rabbitmq-http - REST API for RabbitMQ
Rickover - Job queue with a HTTP API, backed by Postgres
serve-files - Far-future and gzip wrapper around the standard net/http server.
sf_server - a tiny send file server and client
SuperSaaS API Client - HTTP client library for the supersaas.com scheduling/bookings/appointments API
Tideland golib - Web package for REST request handling
Vantaa - A modular blogging API engine written in Go, Neo4j and Polymer.
websiteskeleton - Simple net/http website skeleton
webtf - Web app to graphical visualization of twitter timelines using the HTML5
Wikifeat - Extensible wiki system using CouchDB written in Golang
jweb - A Symfony(https://symfony.com/) inspired framework, written in Go

Web Libraries

Authentication

authcookie - Package authcookie implements creation and verification of signed authentication cookies.
code.soquee.net/otp A library for generating one-time passwords using HOTP (RFC-4226), and TOTP (RFC-6238). Includes less commonly used profiles, and custom time functions for flexible windows.
dgoogauth - Go port of Google’s Authenticator library for one-time passwords
goauth - A library for header-based OAuth over HTTP or HTTPS.
GOAuth - OAuth Consumer
goha - Basic and Digest HTTP Authentication for Go http client
go-http-auth - HTTP Basic and HTTP Digest authentication
Go-OAuth - OAuth 1.0 client
go-otp - Package go-otp implements one-time-password generators used in 2-factor authentication systems like RSA-tokens. Currently this supports both HOTP (RFC-4226), TOTP (RFC-6238) and Base32 encoding (RFC-3548) for Google Authenticator compatibility
goth - Package goth provides a simple, clean, and idiomatic way to write authentication packages for Go web applications
hero - OAuth server implementation - be an OAuth provider with Go
httpauth-go - Package httpauth provides utilities to support HTTP authentication policies. Support for both the basic authentication scheme and the digest authentication scheme are provided.
httpauth - HTTP session (cookie) based authentication and authorization
oauth1a - OAuth 1.0 client library
OAuth Consumer - OAuth 1.0 consumer implementation
otp - HOTP and TOTP library with command line replacement for Google Authenticator
securecookie - Encode and Decode secure cookies
totp - Time-Based One-Time Password Algorithm, specified in RFC 6238, works with Google Authenticator
fosite - Extensible security first OAuth 2.0 and OpenID Connect SDK for Go.
oauth2 - OAuth 2.0 server library for the Go programming language.
gin-oauth2 - Middleware for Gin Framework users who also want to use OAuth2

DOM handling

Cascadia - CSS selector library
GoQuery - jQuery-like DOM manipulation library, using Go’s experimental HTML package.
goq - jQuery-like declarative struct tag scraping and unmarshaling based on GoQuery.
html-query - A fluent and functional approach to querying HTML.
HTML Transform - A CSS selector based html scraping and transformation library

Frameworks and Toolkits

aah - A scalable, performant, rapid development Web framework for Go.
Aero - Fast and secure web server for Go.
Air - An ideal RESTful web framework for Go.
alien - A lightweight and fast http router
app.go - Web framework for google app engine
arasu - A Lightning Fast Web Framework written in Go & Dart
Beego - Beego is an open source version of the scalable, non-blocking web framework.
browserspeak - Generate HTML templates, CSS or SVG without writing < or >
eudore - Eudore is the core of a golang lightweight web framework.
falcore - Modular HTTP server framework
fcgi_client - Go fastcgi client with fcgi params support
Flamingo Framework - Framework for building pluggable production ready web projects.
florest - High-performance workflow based REST API framework in Go
forgery - A clone of the superb Node.js web framework Express.
Gin Web Framework - Martini-like API and httprouter gives it good performance.
Goal - A toolkit for high productivity web development in Go language built around the concept of code generation.
Go-Blog - Blog framework written in Go
go-fastweb - aims to be a simple, small and clean MVC framework for go
goku - a Web Mvc Framework for Go, mostly like ASP.NET MVC.
Golanger - Golanger Web Framework is a lightweight framework for writing web applications in Go.
Goldorak.Go - a web miniframework built using mustache.go, web.go and Go-Redis
go-restful - lean package for building REST-style Web Services
GoRest - An extensive configuration(tags) based RESTful style web-services framework.
go-rest - A small and evil REST framework for Go
gorilla - Gorilla web toolkit
GoSrv - A Go HTTP server that provides simple command line functionality, config loading, request logging, graceful connection shutdown, and daemonization.
go-start - A high level web-framework for Go
go-urlshortener - interface to google’s urlshorten API
goweb - Lightweight RESTful web framework for Go providing Ruby on Rails style routing
go-webproject - Modular web application framework and app server
Gowut - Go Web UI Toolkit is a full-featured, easy to use, platform independent Web UI Toolkit written in pure Go.
Goyave - An elegant, full-featured web application framework
gramework - The truly fastest web framework for Go. Battle tested, highly effective baseline for your web apps.
httpcoala - Library for request coalescing - handy for reverse proxies.
HttpRouter - A high performance HTTP request router that scales well
limiter - Simple rate limiter middleware for Go
Macaron - Modular web framework in Go
mango - Mango is a modular web-application framework for Go, inspired by Rack, and PEP333.
Martini deprecated - Martini is a popular, lightweight, extensible package for writing modular web apps/services in Go
Negroni - Idiomatic middleware for Go
restclient - Client library for interacting with RESTful APIs.
resty - REST client library inspired by Ruby rest-client.
Revel - High productivity web framework modeled on Play! Framework
Ringo - Lighweight MVC web framework inspired by Rails, Gin.
sawsij - Provides a small, opinionated web framework.
Tango - Micro-kernel & pluggable web framework for Go
Tiger Tonic - framework for building JSON web services inspired by Dropwizard
trinity - MVC framework
uAdmin - Web framework with a back end GUI similar to Django.
Utron - MVC Framework
Violetear - HTTP router
web.go - a simple framework to write webapps
wfdr - Simple web framework designed for and written in go. Works with other languages as well, but not as well.
xweb - A web framework for Go. Just like Struts for Java.

HTML forms

form - Complete bidirectional HTML form encoder & decoder (x-www-form-urlencoded) for arbitrary data (package encoding compatible)
gforms - HTML forms for Go
Go-FORM-it - Go library for easy and highly-customizable forms creation and template rendering.
GoForms - Form data validation, cleaning and error reporting - a la django.forms
htmlfiller - Fills in html forms with default values and errors a la Ian Bicking’s htmlfill for Python
MonstiForm - HTML form generator and validator library
revel-csrf - Cross-Site Request Forgery (CSRF) attacks prevention for the Revel framework
xsrftoken - A package for generating and validating tokens used in preventing XSRF attacks

Public API Wrappers

adn - Interface to the App.net API
anaconda - Client library for the Twitter 1.1 API
cloudcomb-go-sdk - Go client library for CloudComb
ddg - DuckDuckGo API interface
facebook - Up-to-date facebook graph API client. Handy and flexible
filepicker-go - Go library for the Filepicker’s REST API
firebase - Client library for the Firebase REST API
gh - Scriptable server and net/http middleware for GitHub Webhooks API
github - Go library for accessing the GitHub REST API v3
githubql - Go library for accessing the GitHub GraphQL API v4
gobo - Client library for Sina Weibo
gocaptcha - gocaptcha provides easy access to the reCaptcha API in go
go-dealmap - Go library for accessing TheDealMap’s API
go-dropbox - API library for dropbox
go-flickr - A wrapper for Flickr’s API
go-get-youtube - A simple library+client for fetching meta data of, and downloading Youtube videos
go-gravatar - Wrapper for the Gravatar API
go-hummingbird - Go library for accessing the Hummingbird.me API
go-libGeoIP - GO Lib GeoIP API for Maxmind
gominatim - Go library to access nominatim geocoding services
gomojo - Instamojo API wrapper
gomwapi - Access mediawiki contents like wikipedia, wiktionary in golang
go-myanimelist - Go library for accessing the MyAnimeList API
googtrans - unofficial go bindings for Google Translate API v2
go-recaptcha - Handles reCaptcha form submissions in Go
gorecurly - A Client app to use with Recurly’s api
go-salesforce - A wrapper for the Salesforce REST API
go.strava - Official client library for the Strava V3 API
go.stripe - a simple credit card processing library for Go using the Stripe API
Gotank - Searchify’s Go client for the IndexTank full-text search API
go-tripit - Go API library for the TripIt web services
GoTwilio - Twilio library for Go (golang). Very basic at the moment
gravatar - Gravatar image/profile API library
jsonapi - Generate JSON API from Go structs
postmark - Access postmark API from Go
reddit.go - Client library for Reddit API
shorturl - Generic implementation for interacting with various URL shortening services
SocialSharesCount - Wrapper API on multiple social websites to get URL share statistics
Stack on Go - Go wrapper for Stack Exchange API
stripe - Official Stripe client library
twilio - Simple Twilio API wrapper
twittergo - Client library for Twitter’s API
vksdk - Golang module for working with VK API

Other

adhoc-http - Quick & dirty HTTP static file server
aop - Aspect Oriented Programming For Go.
assets - Helps prepares CSS and JS files for development and production of Go web apps.
bwl - a set of libraries to help build web sites
captcha - Image and audio captcha generator and server
gaerecords - Lightweight wrapper around appengine/datastore providing Active Record and DBO style management of data
gcd - provides helpful functions to work with Google Cloud DataStore.
get2ch-go - a library to access the 2channel Japanese web bulletin board
gofeed - Parse RSS and Atom feeds in Go
go-gzip-file-server - A net.http.Handler similar to FileServer that serves gzipped content
gohaml - An implementation of the popular XHTML Abstraction Markup Language using the Go language.
go-httpclient - a Go HTTP client with timeouts
gojwt - Json Web Tokens for Go
go-pkg-rss - a packages that reads RSS and Atom feeds
gorefit - A library for theming existing websites
goreman - foreman clone
GoRequest - Simplified HTTP client with rich features such as proxy, timeout, and etc. ( inspired by nodejs SuperAgent )
goroute - A very simple URL router based on named submatches of regular expression that works well with http.Handler .
gorouter - Simple router for go to process url variables
go-rss - Simple RSS parser and generator
go-rss - Simple RSS parser, tested with Wordpress feeds.
goscribble - An MPD Audioscrobble
go-twitter - another Twitter client
go-twitter-oauth - a simple Twitter client (supports OAuth)
grab - A package for managing file downloads
grender - Go static site generator
halgo - HAL-compliant API client and serialisation library.
http-gonsole - Speak HTTP like a local. (the simple, intuitive HTTP console, golang version)
httprpc - HTTP RPC codecs (json2, soap, rest)
HypeCMS - A flexible CMS built with Go and MongoDb.
Kontl - A client for kon.tl’s URL shortening service
mustache.go - an implementation of the Mustache template language
muxer - Simple muxer for a Go app without regexp
Optimus Sitemap Generator - A universal XML sitemap generator
passwordreset - Creation and verification of secure tokens useful for implementation of “reset forgotten password” feature in web applications.
pat - A Sinatra style pattern muxer
persona - remote verification API for persona
plex - simple, small, light, regexp http muxer with chaining
podcast - iTunes and RSS 2.0 Podcast Generator in Golang
purell - tiny Go library to normalize URLs
pusher.go - HTTP Server Push module for the standard http package
rest2go - Based on rest.go, forked for improvements and REST consistency
rest.go (forked) - forked rest.go for improvements and REST consistency
resty - Simple HTTP and REST client for Go inspired by Ruby rest-client.
robotstxt - The robots.txt exclusion protocol implementation. Allows to parse and query robots.txt file.
scs - A HTTP session manager using server-side sessions stores.
seshcookie - A web session library inspired by Beaker
soy - A Go implementation for Soy templates (Google Closure templates). High performance and i18n.
user_agent - An HTTP User-Agent parser
webtestutil - Web and HTTP functional testing utilities. Includes Gorilla testing support.
yt2pod - Daemon that monitors YouTube channels and publishes audio podcasts of them

Windows

gform - An easy to use Windows GUI toolkit for Go
go-ole - win32 ole implementation for golang
go-Windows-begin - for the absolute Windows-Go beginner
w32 - Windows API wrapper for Go.
walk - “Windows Application Library Kit” for the Go Programming Language
Windows Command Line Shutdown - A tool to shutdown Windows Computer from Command Prompt

Unix

inspect - Linux and MacOSX systems monitoring and diagnostics
unixsums - Legacy Unix checksums: cksum, sum

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The following entries have not been filed. Please help by putting these in relevant categories.

consistent - Consistent hashing with bounded loads.
dotviz-server - WebBased DOT language visualization tool written in go
ebml-go - EBML decoder
go-bindata - Converts any file into manageable Go source code for embedding binary data into a Go program.
GoBot - PoC Go HTTP Botnet
goconsistenthash - Consistent hashing library (based on http://www.lexemetech.com/2007/11/consistent-hashing.html)
go-cron - A small cron job system to handle scheduled tasks, such as optimizing databases or kicking idle users from chat. The cron.go project was renamed to this for go get compatibility.
godebiancontrol - Golang debian control file parser
godotviz - Rendering graphics files from “DOT language”. Written in golang
go-gmetric - Ganglia gmetric protocol support
gographviz - Graphviz DOT language parser for golang
gopcapreader - Presents realtime pcap data as io.Reader objects
go.psl - Go regdom-libs/public suffix list
goseq - command line tool, written in Go, for creating sequence diagrams using a text-based description language.
go-webfinger - Simple Client Implementation of WebFinger
img-LinuxFr.org - A reverse-proxy cache for external images used on LinuxFr.org
one-file-pdf - A minimalist Go PDF writer in <2K lines and 1 file
seed - Easily seed PRNGs with some entropy
spellabc - Package spellabc implements spelling alphabet code word encoding.
Tasks - A simplistic todo list manager written in Go
Twackup - Backs up your tweets into local files
al-Go-rithms - Collection of algorithms on arrays, runes, strings for reference purpose.

This content is part of the Go Wiki.

Go Wiki: Projects

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Table of Contents

API Services and Tools

GraphQL

MTProto

Artificial Intelligence

Astronomy

Build Tools

Caching

Cloud Computing

Command-line Option Parsers

Command-line Tools

Compression

Concurrency and Goroutines

Configuration File Parsers

Console User Interface

Continuous Integration

Cryptocurrency

Cryptography

Data Processing

Data Structures

Collections

Hashtables

Lists

Queues

Graphs

Sets

Trees

Other

Databases

CockroachDB

Hazelcast IMDG

MongoDB

MySQL

ODBC

PostgreSQL

QL

Redis

RethinkDB

SQLite

Vertica

ORM

Key-Value-Stores

Graph Databases

NoSQL

Other

Date

Development Tools

Emacs Tags

Distributed/Grid Computing

Documentation

Editors

Email

Error handling

Encodings and Character Sets

File Systems

Games

GIS

Graphics and Audio

GUIs and Widget Toolkits

Hardware

Language and Linguistics

Logging and Monitoring

Machine Learning

Mathematics

Microservices

Miscellaneous

Music

Networking

DNS

FTP

HTTP

IMAP

Instant Messaging

NNTP

Protocol Buffers

rsync

Telnet