avelino / awesome-go

A curated list of awesome Go frameworks, libraries and software

https://awesome-go.com

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A curated list of awesome Go frameworks, libraries, and software. Inspired by awesome-python.

Contributing:

Please take a quick gander at the contribution guidelines first. Thanks to all contributors; you rock!

If you see a package or project here that is no longer maintained or is not a good fit, please submit a pull request to improve this file. Thank you!

Contents

Awesome Go
Resources
- Benchmarks
- Conferences
- E-Books
  - E-books for purchase
  - Free e-books
- Gophers
- Meetups
- Style Guides
- Social Media
  - Twitter
  - Reddit
- Websites
  - Tutorials
  - Guided Learning

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Actor Model

Libraries for building actor-based programs.

Ergo - An actor-based Framework with network transparency for creating event-driven architecture in Golang. Inspired by Erlang.
Goakt - Fast and Distributed Actor framework using protocol buffers as message for Golang.
Hollywood - Blazingly fast and light-weight Actor engine written in Golang.
ProtoActor - Proto Actor - Ultra fast distributed actors for Go, C# and Java/Kotlin.

Artificial Intelligence

Libraries for building programs that leverage AI.

chromem-go - Embeddable vector database for Go with Chroma-like interface and zero third-party dependencies. In-memory with optional persistence.
fun - The simplest but powerful way to use large language models (LLMs) in Go.
langchaingo - LangChainGo is a framework for developing applications powered by language models.
LocalAI - Open Source OpenAI alternative, self-host AI models.
Ollama - Run large language models locally.
OllamaFarm - Manage, load-balance, and failover packs of Ollamas

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Audio and Music

Libraries for manipulating audio.

flac - Native Go FLAC encoder/decoder with support for FLAC streams.
gaad - Native Go AAC bitstream parser.
GoAudio - Native Go Audio Processing Library.
gosamplerate - libsamplerate bindings for go.
id3v2 - ID3 decoding and encoding library for Go.
malgo - Mini audio library.
minimp3 - Lightweight MP3 decoder library.
Oto - A low-level library to play sound on multiple platforms.
PortAudio - Go bindings for the PortAudio audio I/O library.

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Authentication and OAuth

Libraries for implementing authentication schemes.

authboss - Modular authentication system for the web. It tries to remove as much boilerplate and "hard things" as possible so that each time you start a new web project in Go, you can plug it in, configure it, and start building your app without having to build an authentication system each time.
branca - branca token specification implementation for Golang 1.15+.
casbin - Authorization library that supports access control models like ACL, RBAC, and ABAC.
cookiestxt - provides a parser of cookies.txt file format.
go-guardian - Go-Guardian is a golang library that provides a simple, clean, and idiomatic way to create powerful modern API and web authentication that supports LDAP, Basic, Bearer token, and Certificate based authentication.
go-jose - Fairly complete implementation of the JOSE working group's JSON Web Token, JSON Web Signatures, and JSON Web Encryption specs.
goiabada - An open-source authentication and authorization server supporting OAuth2 and OpenID Connect.
gologin - chainable handlers for login with OAuth1 and OAuth2 authentication providers.
gorbac - provides a lightweight role-based access control (RBAC) implementation in Golang.
gosession - This is quick session for net/http in GoLang. This package is perhaps the best implementation of the session mechanism, or at least it tries to become one.
goth - provides a simple, clean, and idiomatic way to use OAuth and OAuth2. Handles multiple providers out of the box.
jeff - Simple, flexible, secure, and idiomatic web session management with pluggable backends.
jwt - Lightweight JSON Web Token (JWT) library.
jwt - Safe, simple, and fast JSON Web Tokens for Go.
jwt-auth - JWT middleware for Golang http servers with many configuration options.
jwt-go - A full featured implementation of JSON Web Tokens (JWT). This library supports the parsing and verification as well as the generation and signing of JWTs.
jwx - Go module implementing various JWx (JWA/JWE/JWK/JWS/JWT, otherwise known as JOSE) technologies
keto - Open Source (Go) implementation of "Zanzibar: Google's Consistent, Global Authorization System". Ships gRPC, REST APIs, newSQL, and an easy and granular permission language. Supports ACL, RBAC, and other access models.
loginsrv - JWT login microservice with pluggable backends such as OAuth2 (Github), htpasswd, osiam.
oauth2 - Successor of goauth2. Generic OAuth 2.0 package that comes with JWT, Google APIs, Compute Engine, and App Engine support.
oidc - Easy to use OpenID Connect client and server library written for Go and certified by the OpenID Foundation
openfga - Implementation of fine-grained authorization based on the "Zanzibar: Google's Consistent, Global Authorization System" paper. Backed by CNCF.
osin - Golang OAuth2 server library.
otpgen - Library to generate TOTP/HOTP codes.
otpgo - Time-Based One-Time Password (TOTP) and HMAC-Based One-Time Password (HOTP) library for Go.
paseto - Golang implementation of Platform-Agnostic Security Tokens (PASETO).
permissions2 - Library for keeping track of users, login states, and permissions. Uses secure cookies and bcrypt.
scope - Easily Manage OAuth2 Scopes In Go.
scs - Session Manager for HTTP servers.
securecookie - Efficient secure cookie encoding/decoding.
session - Go session management for web servers (including support for Google App Engine - GAE).
sessions - Dead simple, highly performant, highly customizable sessions service for go http servers.
sessionup - Simple, yet effective HTTP session management and identification package.
sjwt - Simple jwt generator and parser.

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Blockchain

Tools for building blockchains.

cometbft - A distributed, Byzantine fault-tolerant, deterministic state machine replication engine. It is a fork of Tendermint Core and implements the Tendermint consensus algorithm.
cosmos-sdk - A Framework for Building Public Blockchains in the Cosmos Ecosystem.
gno - A comprehensive smart contract suite built with Golang and Gnolang, a deterministic, purpose-built Go variant for blockchains.
go-ethereum - Official Go implementation of the Ethereum protocol.
gosemble - A Go-based framework for building Polkadot/Substrate-compatible runtimes.
gossamer - A Go implementation of the Polkadot Host.
kubo - A blockchain framework implemented in Go. It provides content-addressable storage which can be used for decentralized storage in DApps. It is based on the IPFS protocol.
lnd - A complete implementation of a Lighting Network node.
solana-go - Go library to interface with Solana JSON RPC and WebSocket interfaces.
tendermint - High-performance middleware for transforming a state machine written in any programming language into a Byzantine Fault Tolerant replicated state machine using the Tendermint consensus and blockchain protocols.

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Bot Building

Libraries for building and working with bots.

bot - Zero-dependencies Telegram Bot library with additional UI components
echotron - An elegant and concurrent library for Telegram Bots in Go.
ephemeral-roles - A Discord bot for managing ephemeral roles based upon voice channel member presence.
go-chat-bot - IRC, Slack & Telegram bot written in Go.
go-joe - A general-purpose bot library inspired by Hubot but written in Go.
go-sarah - Framework to build a bot for desired chat services including LINE, Slack, Gitter, and more.
go-tg - Generated from official docs Go client library for accessing Telegram Bot API, with batteries for building complex bots included.
go-tgbot - Pure Golang Telegram Bot API wrapper, generated from swagger file, session-based router, and middleware.
go-twitch-irc - Library to write bots for twitch.tv chat
Golang CryptoTrading Bot - A golang implementation of a console-based trading bot for cryptocurrency exchanges.
govkbot - Simple Go VK bot library.
hanu - Framework for writing Slack bots.
Kelp - official trading and market-making bot for the Stellar DEX. Works out-of-the-box, written in Golang, compatible with centralized exchanges and custom trading strategies.
larry - Larry 🐦 is a really simple Twitter bot generator that tweets random repositories from Github built in Go.
margelet - Framework for building Telegram bots.
micha - Go Library for Telegram bot api.
olivia - A chatbot built with an artificial neural network.
slack-bot - Ready to use Slack Bot for lazy developers: Custom commands, Jenkins, Jira, Bitbucket, Github...
slacker - Easy to use framework to create Slack bots.
slackscot - Another framework for building Slack bots.
tbot - Telegram bot server with API similar to net/http.
telebot - Telegram bot framework is written in Go.
telego - Telegram Bot API library for Golang with full one-to-one API implementation.
telegram-bot-api - Simple and clean Telegram bot client.
teleterm - Telegram Bot Exec Terminal Command.
Tenyks - Service oriented IRC bot using Redis and JSON for messaging.
wayback - A bot for Telegram, Mastodon, Slack, and other messaging platforms archives webpages.

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Build Automation

Libraries and tools help with build automation.

1build - Command line tool to frictionlessly manage project-specific commands.
air - Air - Live reload for Go apps.
anko - Simple application watcher for multiple programming languages.
gaper - Builds and restarts a Go project when it crashes or some watched file changes.
gilbert - Build system and task runner for Go projects.
gob - Gradle/Maven like build tool for Go projects.
goyek - Create build pipelines in Go.
mage - Mage is a make/rake-like build tool using Go.
mmake - Modern Make.
realize - Go build a system with file watchers and live to reload. Run, build and watch file changes with custom paths.
Task - simple "Make" alternative.
taskctl - Concurrent task runner.
xc - Task runner with README.md defined tasks, executable markdown.

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Command Line

Advanced Console UIs

Libraries for building Console Applications and Console User Interfaces.

asciigraph - Go package to make lightweight ASCII line graph ╭┈╯ in command line apps with no other dependencies.
aurora - ANSI terminal colors that support fmt.Printf/Sprintf.
box-cli-maker - Make Highly Customized Boxes for your CLI.
bubble-table - An interactive table component for bubbletea.
bubbles - TUI components for bubbletea.
bubbletea - Go framework to build terminal apps, based on The Elm Architecture.
cfmt - Contextual fmt inspired by bootstrap color classes.
cfmt - Simple and convenient formatted stylized output fully compatible with fmt library.
chalk - Intuitive package for prettifying terminal/console output.
colourize - Go library for ANSI colour text in terminals.
crab-config-files-templating - Dynamic configuration file templating tool for kubernetes manifest or general configuration files.
ctc - The non-invasive cross-platform terminal color library does not need to modify the Print method.
go-ataman - Go library for rendering ANSI colored text templates in terminals.
go-colorable - Colorable writer for windows.
go-colortext - Go library for color output in terminals.
go-isatty - isatty for golang.
go-palette - Go library that provides elegant and convenient style definitions using ANSI colors. Fully compatible & wraps the fmt library for nice terminal layouts.
go-prompt - Library for building a powerful interactive prompt, inspired by python-prompt-toolkit.
gocui - Minimalist Go library aimed at creating Console User Interfaces.
gommon/color - Style terminal text.
gookit/color - Terminal color rendering tool library, support 16 colors, 256 colors, RGB color rendering output, compatible with Windows.
lipgloss - Declaratively define styles for color, format and layout in the terminal.
marker - Easiest way to match and mark strings for colorful terminal outputs.
mpb - Multi progress bar for terminal applications.
progressbar - Basic thread-safe progress bar that works in every OS.
pterm - A library to beautify console output on every platform with many combinable components.
simpletable - Simple tables in a terminal with Go.
spinner - Go package to easily provide a terminal spinner with options.
tabby - A tiny library for super simple Golang tables.
table - Small library for terminal color based tables.
tabular - Print ASCII tables from command line utilities without the need to pass large sets of data to the API.
termbox-go - Termbox is a library for creating cross-platform text-based interfaces.
termdash - Go terminal dashboard based on termbox-go and inspired by termui.
termenv - Advanced ANSI style & color support for your terminal applications.
termui - Go terminal dashboard based on termbox-go and inspired by blessed-contrib.
uilive - Library for updating terminal output in real time.
uiprogress - Flexible library to render progress bars in terminal applications.
uitable - Library to improve readability in terminal apps using tabular data.
yacspin - Yet Another CLi Spinner package, for working with terminal spinners.

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Standard CLI

Libraries for building standard or basic Command Line applications.

acmd - Simple, useful, and opinionated CLI package in Go.
argparse - Command line argument parser inspired by Python's argparse module.
argv - Go library to split command line string as arguments array using the bash syntax.
carapace - Command argument completion generator for spf13/cobra.
carapace-bin - Multi-shell multi-command argument completer.
carapace-spec - Define simple completions using a spec file.
climax - Alternative CLI with "human face", in spirit of Go command.
clîr - A Simple and Clear CLI library. Dependency free.
cmd - Extends the standard flag package to support sub commands and more in idiomatic way.
cmdr - A POSIX/GNU style, getopt-like command-line UI Go library.
cobra - Commander for modern Go CLI interactions.
command-chain - A go library for configure and run command chains - such as pipelining in unix shells.
commandeer - Dev-friendly CLI apps: sets up flags, defaults, and usage based on struct fields and tags.
complete - Write bash completions in Go + Go command bash completion.
Dnote - A simple command line notebook with multi-device sync.
elvish - An expressive programming language and a versatile interactive shell.
env - Tag-based environment configuration for structs.
flag - Simple but powerful command line option parsing library for Go supporting subcommand.
flaggy - A robust and idiomatic flags package with excellent subcommand support.
flagvar - A collection of flag argument types for Go's standard flag package.
go-andotp - A CLI program to encrypt/decrypt andOTP files. Can be used as a library as well.
go-arg - Struct-based argument parsing in Go.
go-commander - Go library to simplify CLI workflow.
go-flags - go command line option parser.
go-getoptions - Go option parser inspired by the flexibility of Perl’s GetOpt::Long.
gocmd - Go library for building command line applications.
hashicorp/cli - Go library for implementing command-line interfaces.
hiboot cli - cli application framework with auto configuration and dependency injection.
job - JOB, make your short-term command as a long-term job.
kingpin - Command line and flag parser supporting sub commands (superseded by kong; see below).
liner - Go readline-like library for command-line interfaces.
mcli - A minimal but very powerful cli library for Go.
mkideal/cli - Feature-rich and easy to use command-line package based on golang struct tags.
mow.cli - Go library for building CLI applications with sophisticated flag and argument parsing and validation.
ops - Unikernel Builder/Orchestrator.
pflag - Drop-in replacement for Go's flag package, implementing POSIX/GNU-style --flags.
readline Shell library with modern and easy to use UI features.
sand - Simple API for creating interpreters and so much more.
sflags - Struct based flags generator for flag, urfave/cli, pflag, cobra, kingpin, and other libraries.
strumt - Library to create prompt chain.
subcmd - Another approach to parsing and running subcommands. Works alongside the standard flag package.
survey - Build interactive and accessible prompts with full support for windows and posix terminals.
teris-io/cli - Simple and complete API for building command line interfaces in Go.
ts - Timestamp convert & compare tool.
ukautz/clif - Small command line interface framework.
urfave/cli - Simple, fast, and fun package for building command line apps in Go (formerly codegangsta/cli).
version - Collects and displays CLI version information in multiple formats along with upgrade notice.
wlog - Simple logging interface that supports cross-platform color and concurrency.
wmenu - Easy to use menu structure for cli applications that prompt users to make choices.

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Configuration

Libraries for configuration parsing.

aconfig - Simple, useful and opinionated config loader.
bcl - BCL is a configuration language similar to HCL.
cleanenv - Minimalistic configuration reader (from files, ENV, and wherever you want).
config - Cloud native application configuration. Bind ENV to structs in only two lines.
config - configure your app using file, environment variables, or flags in two lines of code
configuration - Library for initializing configuration structs from env variables, files, flags and 'default' tag.
configure - Provides configuration through multiple sources, including JSON, flags and environment variables.
configuro - opinionated configuration loading & validation framework from ENV and Files focused towards 12-Factor compliant applications.
confiq - Structured data format to config struct decoder library for Go - supporting multiple data formats
confita - Load configuration in cascade from multiple backends into a struct.
conflate - Library/tool to merge multiple JSON/YAML/TOML files from arbitrary URLs, validation against a JSON schema, and application of default values defined in the schema.
env - Parse environment variables to Go structs (with defaults).
env - A lightweight package for loading environment variables into structs.
env - An environment utility package with support for unmarshaling into structs
envconfig - Read your configuration from environment variables.
envh - Helpers to manage environment variables.
fig - Tiny library for reading configuration from a file and from environment variables (with validation & defaults).
genv - Read environment variables easily with dotenv support.
go-array - A Go package that read or set data from map, slice or json.
go-aws-ssm - Go package that fetches parameters from AWS System Manager - Parameter Store.
go-cfg - The library provides a unified way to read configuration data into a structure from various sources, such as env, flags, and configuration files (.json, .yaml, .toml, .env).
go-conf - Simple library for application configuration based on annotated structs. It supports reading the configuration from environment variables, config files and command line parameters.
go-ini - A Go package that marshals and unmarshals INI-files.
go-ssm-config - Go utility for loading configuration parameters from AWS SSM (Parameter Store).
go-up - A simple configuration library with recursive placeholders resolution and no magic.
GoCfg - Config manager with Struct Tags based contracts, custom value providers, parsers, and documentation generation. Customizable yet simple.
goConfig - Parses a struct as input and populates the fields of this struct with parameters from command line, environment variables and configuration file.
godotenv - Go port of Ruby's dotenv library (Loads environment variables from .env).
gofigure - Go application configuration made easy.
GoLobby/Config - GoLobby Config is a lightweight yet powerful configuration manager for the Go programming language.
gone/jconf - Modular JSON configuration. Keep your config structs along with the code they configure and delegate parsing to submodules without sacrificing full config serialization.
gonfig - Tag-based configuration parser which loads values from different providers into typesafe struct.
gookit/config - application config manage(load,get,set). support JSON, YAML, TOML, INI, HCL. multi file load, data override merge.
harvester - Harvester, an easy to use static and dynamic configuration package supporting seeding, env vars and Consul integration.
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.
ingo - Flags persisted in an ini-like config file.
ini - Go package to read and write INI files.
ini - INI Parser & Write Library, Unmarshal to Struct, Marshal to Json, Write File, watch file.
joshbetz/config - Small configuration library for Go that parses environment variables, JSON files, and reloads automatically on SIGHUP.
kelseyhightower/envconfig - Go library for managing configuration data from environment variables.
koanf - Light weight, extensible library for reading config in Go applications. Built in support for JSON, TOML, YAML, env, command line.
konf - The simplest API for reading/watching config from file, env, flag and clouds (e.g. AWS, Azure, GCP).
konfig - Composable, observable and performant config handling for Go for the distributed processing era.
kong - Command-line parser with support for arbitrarily complex command-line structures and additional sources of configuration such as YAML, JSON, TOML, etc (successor to kingpin).
mini - Golang package for parsing ini-style configuration files.
nasermirzaei89/env - Simple useful package for read environment variables.
nfigure - Per-library struct-tag based configuration from command lines (Posix & Go-style); environment, JSON, YAML
onion - Layer based configuration for Go, Supports JSON, TOML, YAML, properties, etcd, env, and encryption using PGP.
piper - Viper wrapper with config inheritance and key generation.
sonic - A blazingly fast JSON serializing & deserializing library.
store - Lightweight configuration manager for Go.
swap - Instantiate/configure structs recursively, based on build environment. (YAML, TOML, JSON and env).
typenv - Minimalistic, zero dependency, typed environment variables library.
uConfig - Lightweight, zero-dependency, and extendable configuration management.
viper - Go configuration with fangs.
xdg - Go implementation of the XDG Base Directory Specification and XDG user directories.
xdg - Cross platform package that follows the XDG Standard.
yamagiconf - The "safe subset" of YAML for Go configs.

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Continuous Integration

Tools for help with continuous integration.

abstruse - Abstruse is a distributed CI platform.
Bencher - A suite of continuous benchmarking tools designed to catch performance regressions in CI.
CDS - Enterprise-Grade CI/CD and DevOps Automation Open Source Platform.
dot - A minimal, local first continuous integration system that uses Docker to run jobs concurrently in stages.
drone - Drone is a Continuous Integration platform built on Docker, written in Go.
go-beautiful-html-coverage - A GitHub Action to track code coverage in your pull requests, with a beautiful HTML preview, for free.
go-fuzz-action - Use Go 1.18's built-in fuzz testing in GitHub Actions.
go-semver-release - Automate the semantic versioning of Git repositories.
go-test-coverage - Tool and GitHub action which reports issues when test coverage is below set threshold.
gomason - Test, Build, Sign, and Publish your go binaries from a clean workspace.
gotestfmt - go test output for humans.
goveralls - Go integration for Coveralls.io continuous code coverage tracking system.
muffet - Fast website link checker in Go, see alternatives.
overalls - Multi-Package go project coverprofile for tools like goveralls.
roveralls - Recursive coverage testing tool.
woodpecker - Woodpecker is a community fork of the Drone CI system.

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CSS Preprocessors

Libraries for preprocessing CSS files.

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

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Data Integration Frameworks

Frameworks for performing ELT / ETL

Benthos - A message streaming bridge between a range of protocols.
CloudQuery - A high-performance ELT data integration framework with pluggable architecture.
omniparser - A versatile ETL library that parses text input (CSV/txt/JSON/XML/EDI/X12/EDIFACT/etc) in streaming fashion and transforms data into JSON output using data-driven schema.

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Data Structures and Algorithms

Bit-packing and Compression

bingo - Fast, zero-allocation, lexicographical-order-preserving packing of native types to bytes.
binpacker - Binary packer and unpacker helps user build custom binary stream.
bit - Golang set data structure with bonus bit-twiddling functions.
crunch - Go package implementing buffers for handling various datatypes easily.
go-ef - A Go implementation of the Elias-Fano encoding.
roaring - Go package implementing compressed bitsets.

Bit Sets

bitmap - Dense, zero-allocation, SIMD-enabled bitmap/bitset in Go.
bitset - Go package implementing bitsets.

Bloom and Cuckoo Filters

bloom - Go package implementing Bloom filters.
bloom - Bloom filters implemented in Go.
bloom - Golang Bloom filter implementation.
bloomfilter - Yet another Bloomfilter implementation in Go, compatible with Java's Guava library.
boomfilters - Probabilistic data structures for processing continuous, unbounded streams.
cuckoo-filter - Cuckoo filter: a comprehensive cuckoo filter, which is configurable and space optimized compared with other implements, and all features mentioned in original paper are available.
cuckoofilter - Cuckoo filter: a good alternative to a counting bloom filter implemented in Go.
ring - Go implementation of a high performance, thread safe bloom filter.

Data Structure and Algorithm Collections

algorithms - Algorithms and data structures.CLRS study.
go-datastructures - Collection of useful, performant, and thread-safe data structures.
gods - Go Data Structures. Containers, Sets, Lists, Stacks, Maps, BidiMaps, Trees, HashSet etc.
gostl - Data structure and algorithm library for go, designed to provide functions similar to C++ STL.

Iterators

goterator - Iterator implementation to provide map and reduce functionalities.
iter - Go implementation of C++ STL iterators and algorithms.

Maps

See also Database for more complex key-value stores, and Trees for additional ordered map implementations.

cmap - a thread-safe concurrent map for go, support using interface{} as key and auto scale up shards.
dict - Python-like dictionaries (dict) for Go.
go-shelve - A persistent, map-like object for the Go programming language. Supports multiple embedded key-value stores.
goradd/maps - Go 1.18+ generic map interface for maps; safe maps; ordered maps; ordered, safe maps; etc.

Miscellaneous Data Structures and Algorithms

concurrent-writer - Highly concurrent drop-in replacement for bufio.Writer.
conjungo - A small, powerful and flexible merge library.
count-min-log - Go implementation Count-Min-Log sketch: Approximately counting with approximate counters (Like Count-Min sketch but using less memory).
fsm - Finite-State Machine package.
genfuncs - Go 1.18+ generics package inspired by Kotlin's Sequence and Map.
go-generics - Generic slice, map, set, iterator, and goroutine utilities.
go-geoindex - In-memory geo index.
go-rampart - Determine how intervals relate to each other.
go-rquad - Region quadtrees with efficient point location and neighbour finding.
go-tuple - Generic tuple implementation for Go 1.18+.
go18ds - Go Data Structures using Go 1.18 generics.
gofal - fractional api for Go.
gogu - A comprehensive, reusable and efficient concurrent-safe generics utility functions and data structures library.
gota - Implementation of dataframes, series, and data wrangling methods for Go.
hide - ID type with marshalling to/from hash to prevent sending IDs to clients.
hilbert - Go package for mapping values to and from space-filling curves, such as Hilbert and Peano curves.
hyperloglog - HyperLogLog implementation with Sparse, LogLog-Beta bias correction and TailCut space reduction.
quadtree - Generic, zero-alloc, 100%-test covered quadtree.
slices - Functions that operate on slices; like package strings but adapted to work with slices.
slices - Pure, generic functions for slices.

Nullable Types

nan - Zero allocation Nullable structures in one library with handy conversion functions, marshallers and unmarshallers.
null - Nullable Go types that can be marshalled/unmarshalled to/from JSON.
typ - Null Types, Safe primitive type conversion and fetching value from complex structures.

Queues

deque - A highly optimized double-ended queue.
deque - Fast ring-buffer deque (double-ended queue).
goconcurrentqueue - Concurrent FIFO queue.
hatchet - Distributed, Fault-tolerant task queue.
memlog - An easy to use, lightweight, thread-safe and append-only in-memory data structure inspired by Apache Kafka.
queue - Multiple thread-safe, generic queue implementations for Go.

Sets

dsu - Disjoint Set data structure implementation in Go.
golang-set - Thread-Safe and Non-Thread-Safe high-performance sets for Go.
goset - A useful Set collection implementation for Go.
set - Simple set data structure implementation in Go using LinkedHashMap.

Text Analysis

bleve - Modern text indexing library for go.
go-adaptive-radix-tree - Go implementation of Adaptive Radix Tree.
go-edlib - Go string comparison and edit distance algorithms library (Levenshtein, LCS, Hamming, Damerau levenshtein, Jaro-Winkler, etc.) compatible with Unicode.
levenshtein - Levenshtein distance and similarity metrics with customizable edit costs and Winkler-like bonus for common prefix.
levenshtein - Implementation to calculate levenshtein distance in Go.
mspm - Multi-String Pattern Matching Algorithm for information retrieval.
parsefields - Tools for parse JSON-like logs for collecting unique fields and events.
ptrie - An implementation of prefix tree.
trie - Trie implementation in Go.

Trees

hashsplit - Split byte streams into chunks, and arrange chunks into trees, with boundaries determined by content, not position.
merkle - Space-efficient computation of Merkle root hashes and inclusion proofs.
skiplist - Very fast Go Skiplist implementation.
skiplist - Skiplist implementation in Go.
treap - Persistent, fast ordered map using tree heaps.
treemap - Generic key-sorted map using a red-black tree under the hood.

Pipes

ordered-concurrently - Go module that processes work concurrently and returns output in a channel in the order of input.
parapipe - FIFO Pipeline which parallels execution on each stage while maintaining the order of messages and results.
pipeline - An implementation of pipelines with fan-in and fan-out.

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Database

Caches

Data stores with expiring records, in-memory distributed data stores, or in-memory subsets of file-based databases.

2q - 2Q in-memory cache implementation.
bcache - Eventually consistent distributed in-memory cache Go library.
BigCache - Efficient key/value cache for gigabytes of data.
cache - In-memory key:value store with expiration time, 0 dependencies, <100 LoC, 100% coverage.
cache2go - In-memory key:value cache which supports automatic invalidation based on timeouts.
cachego - Golang Cache component for multiple drivers.
clusteredBigCache - BigCache with clustering support and individual item expiration.
coherence-go-client - Full implementation of Oracle Coherence cache API for Go applications using gRPC as network transport.
couchcache - RESTful caching micro-service backed by Couchbase server.
EchoVault - Embeddable Distributed in-memory data store compatible with Redis clients.
fastcache - fast thread-safe inmemory cache for big number of entries. Minimizes GC overhead.
GCache - Cache library with support for expirable Cache, LFU, LRU and ARC.
gdcache - A pure non-intrusive cache library implemented by golang, you can use it to implement your own distributed cache.
go-cache - A flexible multi-layer Go caching library to deal with in-memory and shared cache by adopting Cache-Aside pattern.
go-freelru A GC-less, fast and generic LRU hashmap library with optional locking, sharding, eviction and expiration.
go-mcache - Fast in-memory key:value store/cache library. Pointer caches.
gocache - A complete Go cache library with multiple stores (memory, memcache, redis, ...), chainable, loadable, metrics cache and more.
gocache - A data race free Go ache library with high performance and auto pruge functionality
groupcache - Groupcache is a caching and cache-filling library, intended as a replacement for memcached in many cases.
icache - A High Performance, Generic, thread-safe, zero-dependency cache package.
imcache - A generic in-memory cache Go library. It supports expiration, sliding expiration, max entries limit, eviction callbacks and sharding.
nscache - A Go caching framework that supports multiple data source drivers.
otter - A high performance lockless cache for Go. Many times faster than Ristretto and friends.
pocache - Pocache is a minimal cache package which focuses on a preemptive optimistic caching strategy.
sturdyc - A caching library with advanced concurrency features designed to make I/O heavy applications robust and highly performant.
theine - High performance, near optimal in-memory cache with proactive TTL expiration and generics.
timedmap - Map with expiring key-value pairs.
ttlcache - An in-memory cache with item expiration and generics.
ttlcache - In-memory key value storage with TTL for each record.

Databases Implemented in Go

badger - Fast key-value store in Go.
bbolt - An embedded key/value database for Go.
Bitcask - Bitcask is an embeddable, persistent and fast key-value (KV) database written in pure Go with predictable read/write performance, low latency and high throughput thanks to the bitcask on-disk layout (LSM+WAL).
buntdb - Fast, embeddable, in-memory key/value database for Go with custom indexing and spatial support.
clover - A lightweight document-oriented NoSQL database written in pure Golang.
cockroach - Scalable, Geo-Replicated, Transactional Datastore.
Coffer - Simple ACID key-value database that supports transactions.
column - High-performance, columnar, embeddable in-memory store with bitmap indexing and transactions.
CovenantSQL - CovenantSQL is a SQL database on blockchain.
Databunker - Personally identifiable information (PII) storage service built to comply with GDPR and CCPA.
dgraph - Scalable, Distributed, Low Latency, High Throughput Graph Database.
diskv - Home-grown disk-backed key-value store.
dolt - Dolt – It's Git for Data.
dtf - A distributed transaction manager. Support XA, TCC, SAGA, Reliable Messages.
eliasdb - Dependency-free, transactional graph database with REST API, phrase search and SQL-like query language.
godis - A Golang implemented high-performance Redis server and cluster.
goleveldb - Implementation of the LevelDB key/value database in Go.
hare - A simple database management system that stores each table as a text file of line-delimited JSON.
immudb - immudb is a lightweight, high-speed immutable database for systems and applications written in Go.
influxdb - Scalable datastore for metrics, events, and real-time analytics.
ledisdb - Ledisdb is a high performance NoSQL like Redis based on LevelDB.
levigo - Levigo is a Go wrapper for LevelDB.
libradb - LibraDB is a simple database with less than 1000 lines of code for learning.
LinDB - LinDB is a scalable, high performance, high availability distributed time series database.
lotusdb - Fast k/v database compatible with lsm and b+tree.
Milvus - Milvus is a vector database for embedding management, analytics and search.
moss - Moss is a simple LSM key-value storage engine written in 100% Go.
nutsdb - Nutsdb is a simple, fast, embeddable, persistent key/value store written in pure Go. It supports fully serializable transactions and many data structures such as list, set, sorted set.
objectbox-go - High-performance embedded Object Database (NoSQL) with Go API.
pebble - RocksDB/LevelDB inspired key-value database in Go.
piladb - Lightweight RESTful database engine based on stack data structures.
pogreb - Embedded key-value store for read-heavy workloads.
prometheus - Monitoring system and time series database.
pudge - Fast and simple key/value store written using Go's standard library.
redka - Redis re-implemented with SQLite.
rosedb - An embedded k-v database based on LSM+WAL, supports string, list, hash, set, zset.
rotom - A tiny Redis server built with Golang, compatible with RESP protocols.
rqlite - The lightweight, distributed, relational database built on SQLite.
tempdb - Key-value store for temporary items.
tidb - TiDB is a distributed SQL database. Inspired by the design of Google F1.
tiedot - Your NoSQL database powered by Golang.
unitdb - Fast timeseries database for IoT, realtime messaging applications. Access unitdb with pubsub over tcp or websocket using github.com/unit-io/unitd application.
Vasto - A distributed high-performance key-value store. On Disk. Eventual consistent. HA. Able to grow or shrink without service interruption.
VictoriaMetrics - fast, resource-effective and scalable open source time series database. May be used as long-term remote storage for Prometheus. Supports PromQL.

Database Schema Migration

atlas - A Database Toolkit. A CLI designed to help companies better work with their data.
avro - Discover SQL schemas and convert them to AVRO schemas. Query SQL records into AVRO bytes.
bytebase - Safe database schema change and version control for DevOps teams.
darwin - Database schema evolution library for Go.
dbmate - A lightweight, framework-agnostic database migration tool.
go-fixtures - Django style fixtures for Golang's excellent built-in database/sql library.
go-pg-migrate - CLI-friendly package for go-pg migrations management.
go-pg-migrations - A Go package to help write migrations with go-pg/pg.
goavro - A Go package that encodes and decodes Avro data.
godfish - Database migration manager, works with native query language. Support for cassandra, mysql, postgres, sqlite3.
goose - Database migration tool. You can manage your database's evolution by creating incremental SQL or Go scripts.
gorm-seeder - Simple database seeder for Gorm ORM.
gormigrate - Database schema migration helper for Gorm ORM.
libschema - Define your migrations separately in each library. Migrations for open source libraries. MySQL & PostgreSQL.
migrate - Database migrations. CLI and Golang library.
migrator - Dead simple Go database migration library.
migrator - MySQL database migrator designed to run migrations to your features and manage database schema update with intuitive go code.
schema - Library to embed schema migrations for database/sql-compatible databases inside your Go binaries.
skeema - Pure-SQL schema management system for MySQL, with support for sharding and external online schema change tools.
soda - Database migration, creation, ORM, etc... for MySQL, PostgreSQL, and SQLite.
sql-migrate - Database migration tool. Allows embedding migrations into the application using go-bindata.
sqlize - Database migration generator. Allows generate sql migration from model and existing sql by differ them.

Database Tools

chproxy - HTTP proxy for ClickHouse database.
clickhouse-bulk - Collects small inserts and sends big requests to ClickHouse servers.
dbbench - Database benchmarking tool with support for several databases and scripts.
dg - A fast data generator that produces CSV files from generated relational data.
dynago - Simplify working with AWS DynamoDB.
gatewayd - Cloud-native database gateway and framework for building data-driven applications. Like API gateways, for databases.
go-mysql - Go toolset to handle MySQL protocol and replication.
gorm-multitenancy - Multi-tenancy support for GORM managed databases.
hasql - Library for accessing multi-host SQL database installations.
octillery - Go package for sharding databases ( Supports every ORM or raw SQL ).
onedump - Database backup from different drivers to different destinations with one command and configuration.
pg_timetable - Advanced scheduling for PostgreSQL.
pgweb - Web-based PostgreSQL database browser.
prep - Use prepared SQL statements without changing your code.
pREST - Simplify and accelerate development, ⚡ instant, realtime, high-performance on any Postgres application, existing or new.
rdb - Redis RDB file parser for secondary development and memory analysis.
rwdb - rwdb provides read replica capability for multiple database servers setup.
vitess - vitess provides servers and tools which facilitate scaling of MySQL databases for large scale web services.
wescale - WeScale is a database proxy designed to enhance the scalability, performance, security, and resilience of your applications.

SQL Query Builders

Libraries for building and using SQL.

bqb - Lightweight and easy to learn query builder.
buildsqlx - Go database query builder library for PostgreSQL.
builq - Easily build SQL queries in Go.
dbq - Zero boilerplate database operations for Go.
Dotsql - Go library that helps you keep sql files in one place and use them with ease.
gendry - Non-invasive SQL builder and powerful data binder.
godbal - Database Abstraction Layer (dbal) for go. Support SQL builder and get result easily.
goqu - Idiomatic SQL builder and query library.
gosql - SQL Query builder with better null values support.
Hotcoal - Secure your handcrafted SQL against injection.
igor - Abstraction layer for PostgreSQL that supports advanced functionality and uses gorm-like syntax.
jet - Framework for writing type-safe SQL queries in Go, with ability to easily convert database query result into desired arbitrary object structure.
ormlite - Lightweight package containing some ORM-like features and helpers for sqlite databases.
ozzo-dbx - Powerful data retrieval methods as well as DB-agnostic query building capabilities.
qry - Tool that generates constants from files with raw SQL queries.
sg - A SQL Gen for generating standard SQLs(supports: CRUD) written in Go.
sq - Type-safe SQL builder and struct mapper for Go.
sqlc - Generate type-safe code from SQL.
sqlf - Fast SQL query builder.
sqlingo - A lightweight DSL to build SQL in Go.
sqrl - SQL query builder, fork of Squirrel with improved performance.
Squalus - Thin layer over the Go SQL package that makes it easier to perform queries.
Squirrel - Go library that helps you build SQL queries.
xo - Generate idiomatic Go code for databases based on existing schema definitions or custom queries supporting PostgreSQL, MySQL, SQLite, Oracle, and Microsoft SQL Server.

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Database Drivers

Interfaces to Multiple Backends

cayley - Graph database with support for multiple backends.
dsc - Datastore connectivity for SQL, NoSQL, structured files.
dynamo - A simple key-value abstraction to store algebraic and linked-data data types at AWS storage services: AWS DynamoDB and AWS S3.
go-transaction-manager - Transaction manager with multiple adapters (sql, sqlx, gorm, mongo, ...) controls transaction boundaries.
gokv - Simple key-value store abstraction and implementations for Go (Redis, Consul, etcd, bbolt, BadgerDB, LevelDB, Memcached, DynamoDB, S3, PostgreSQL, MongoDB, CockroachDB and many more).

Relational Database Drivers

avatica - Apache Avatica/Phoenix SQL driver for database/sql.
bgc - Datastore Connectivity for BigQuery for go.
firebirdsql - Firebird RDBMS SQL driver for Go.
go-adodb - Microsoft ActiveX Object DataBase driver for go that uses database/sql.
go-mssqldb - Microsoft MSSQL driver for Go.
go-oci8 - Oracle driver for go that uses database/sql.
go-sql-driver/mysql - MySQL driver for Go.
go-sqlite3 - SQLite3 driver for go that uses database/sql.
godror - Oracle driver for Go, using the ODPI-C driver.
gofreetds - Microsoft MSSQL driver. Go wrapper over FreeTDS.
KSQL - A Simple and Powerful Golang SQL Library
pgx - PostgreSQL driver supporting features beyond those exposed by database/sql.
pig - Simple pgx wrapper to execute and scan query results easily.
pq - Pure Go Postgres driver for database/sql.
Sqinn-Go - SQLite with pure Go.
sqlhooks - Attach hooks to any database/sql driver.
surrealdb.go - SurrealDB Driver for Go.
ydb-go-sdk - native and database/sql driver YDB (Yandex Database)

NoSQL Database Drivers

aerospike-client-go - Aerospike client in Go language.
arangolite - Lightweight golang driver for ArangoDB.
asc - Datastore Connectivity for Aerospike for go.
forestdb - Go bindings for ForestDB.
go-couchbase - Couchbase client in Go.
go-mongox - A Go Mongo library based on the official driver, featuring streamlined document operations, generic binding of structs to collections, built-in CRUD, aggregation, automated field updates, struct validation, hooks, and plugin-based programming.
go-pilosa - Go client library for Pilosa.
go-rejson - Golang client for redislabs' ReJSON module using Redigo golang client. Store and manipulate structs as JSON objects in redis with ease.
gocb - Official Couchbase Go SDK.
gocosmos - REST client and standard database/sql driver for Azure Cosmos DB.
gocql - Go language driver for Apache Cassandra.
godis - redis client implement by golang, inspired by jedis.
godscache - A wrapper for the Google Cloud Platform Go Datastore package that adds caching using memcached.
gomemcache - memcache client library for the Go programming language.
gomemcached - A binary Memcached client for Go with support for sharding using consistent hashing, along with SASL.
gorethink - Go language driver for RethinkDB.
goriak - Go language driver for Riak KV.
Kivik - Kivik provides a common Go and GopherJS client library for CouchDB, PouchDB, and similar databases.
mgm - MongoDB model-based ODM for Go (based on official MongoDB driver).
mgo - (unmaintained) MongoDB driver for the Go language that implements a rich and well tested selection of features under a very simple API following standard Go idioms.
mongo-go-driver - Official MongoDB driver for the Go language.
neo4j - Neo4j Rest API Bindings for Golang.
Neo4j-GO - Neo4j REST Client in golang.
neoism - Neo4j client for Golang.
qmgo - The MongoDB driver for Go. It‘s based on official MongoDB driver but easier to use like Mgo.
redeo - Redis-protocol compatible TCP servers/services.
redigo - Redigo is a Go client for the Redis database.
redis - Redis client for Golang.
rueidis - Fast Redis RESP3 client with auto pipelining and server-assisted client side caching.
xredis - Typesafe, customizable, clean & easy to use Redis client.

Search and Analytic Databases

clickhouse-go - ClickHouse SQL client for Go with a database/sql compatibility.
effdsl - Elasticsearch query builder for Go.
elastic - Elasticsearch client for Go.
elasticsql - Convert sql to elasticsearch dsl in Go.
elastigo - Elasticsearch client library.
go-elasticsearch - Official Elasticsearch client for Go.
goes - Library to interact with Elasticsearch.
skizze - probabilistic data-structures service and storage.
zoekt - Fast trigram based code search.

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Date and Time

Libraries for working with dates and times.

approx - A Duration extension supporting parsing/printing durations in days, weeks and years.
carbon - A simple, semantic and developer-friendly golang package for datetime.
carbon - Simple Time extension with a lot of util methods, ported from PHP Carbon library.
cronrange - Parses Cron-style time range expressions, checks if the given time is within any ranges.
date - Augments Time for working with dates, date ranges, time spans, periods, and time-of-day.
dateparse - Parse date's without knowing format in advance.
durafmt - Time duration formatting library for Go.
feiertage - Set of functions to calculate public holidays in Germany, incl. specialization on the states of Germany (Bundesländer). Things like Easter, Pentecost, Thanksgiving...
go-anytime - Parse dates/times like "next dec 22nd at 3pm" and ranges like "from today until next thursday" without knowing the format in advance.
go-datebin - A simple datetime parse pkg.
go-persian-calendar - The implementation of the Persian (Solar Hijri) Calendar in Go (golang).
go-str2duration - Convert string to duration. Support time.Duration returned string and more.
go-sunrise - Calculate the sunrise and sunset times for a given location.
go-week - An efficient package to work with ISO8601 week dates.
gostradamus - A Go package for working with dates.
iso8601 - Efficiently parse ISO8601 date-times without regex.
kair - Date and Time - Golang Formatting Library.
now - Now is a time toolkit for golang.
strftime - C99-compatible strftime formatter.
timespan - For interacting with intervals of time, defined as a start time and a duration.
timeutil - Useful extensions (Timedelta, Strftime, ...) to the golang's time package.
tuesday - Ruby-compatible Strftime function.

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Distributed Systems

Packages that help with building Distributed Systems.

arpc - More effective network communication, support two-way-calling, notify, broadcast.
bedrock - Provides a minimal, modular and composable foundation for quickly developing services and more use case specific frameworks in Go.
capillaries - distributed batch data processing framework.
celeriac - Library for adding support for interacting and monitoring Celery workers, tasks and events in Go.
consistent - Consistent hashing with bounded loads.
consistenthash - Consistent hashing with configurable replicas.
dht - BitTorrent Kademlia DHT implementation.
digota - grpc ecommerce microservice.
dot - distributed sync using operational transformation/OT.
doublejump - A revamped Google's jump consistent hash.
dragonboat - A feature complete and high performance multi-group Raft library in Go.
Dragonfly - Provide efficient, stable and secure file distribution and image acceleration based on p2p technology to be the best practice and standard solution in cloud native architectures.
drmaa - Job submission library for cluster schedulers based on the DRMAA standard.
dynamolock - DynamoDB-backed distributed locking implementation.
dynatomic - A library for using DynamoDB as an atomic counter.
emitter-io - High performance, distributed, secure and low latency publish-subscribe platform built with MQTT, Websockets and love.
evans - Evans: more expressive universal gRPC client.
failured - adaptive accrual failure detector for distributed systems.
flowgraph - flow-based programming package.
gleam - Fast and scalable distributed map/reduce system written in pure Go and Luajit, combining Go's high concurrency with Luajit's high performance, runs standalone or distributed.
glow - Easy-to-Use scalable distributed big data processing, Map-Reduce, DAG execution, all in pure Go.
gmsec - A Go distributed systems development framework.
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.
go-health - Library for enabling asynchronous dependency health checks in your service.
go-jump - Port of Google's "Jump" Consistent Hash function.
go-kit - Microservice toolkit with support for service discovery, load balancing, pluggable transports, request tracking, etc.
go-micro - A distributed systems development framework.
go-mysql-lock - MySQL based distributed lock.
go-pdu - A decentralized identity-based social network.
go-sundheit - A library built to provide support for defining async service health checks for golang services.
go-zero - A web and rpc framework. It's born to ensure the stability of the busy sites with resilient design. Builtin goctl greatly improves the development productivity.
gorpc - Simple, fast and scalable RPC library for high load.
grpc-go - The Go language implementation of gRPC. HTTP/2 based RPC.
hprose - Very newbility RPC Library, support 25+ languages now.
jsonrpc - The jsonrpc package helps implement of JSON-RPC 2.0.
jsonrpc - JSON-RPC 2.0 HTTP client implementation.
K8gb - A cloud native Kubernetes Global Balancer.
Kitex - A high-performance and strong-extensibility Golang RPC framework that helps developers build microservices. If the performance and extensibility are the main concerns when you develop microservices, Kitex can be a good choice.
Kratos - A modular-designed and easy-to-use microservices framework in Go.
liftbridge - Lightweight, fault-tolerant message streams for NATS.
lura - Ultra performant API Gateway framework with middlewares.
micro - A distributed systems runtime for the cloud and beyond.
mochi mqtt - Fully spec compliant, embeddable high-performance MQTT v5/v3 broker for IoT, smarthome, and pubsub.
NATS - NATS is a simple, secure, and performant communications system for digital systems, services, and devices.
outboxer - Outboxer is a go library that implements the outbox pattern.
pglock - PostgreSQL-backed distributed locking implementation.
pjrpc - Golang JSON-RPC Server-Client with Protobuf spec.
raft - Golang implementation of the Raft consensus protocol, by HashiCorp.
raft - Go implementation of the Raft consensus protocol, by CoreOS.
rain - BitTorrent client and library.
redis-lock - Simplified distributed locking implementation using Redis.
resgate - Realtime API Gateway for building REST, real time, and RPC APIs, where all clients are synchronized seamlessly.
ringpop-go - Scalable, fault-tolerant application-layer sharding for Go applications.
rpcx - Distributed pluggable RPC service framework like alibaba Dubbo.
Semaphore - A straightforward (micro) service orchestrator.
sleuth - Library for master-less p2p auto-discovery and RPC between HTTP services (using ZeroMQ).
sponge - A distributed development framework that integrates automatic code generation, gin and grpc frameworks, base development frameworks.
Tarmac - Framework for writing functions, microservices, or monoliths with WebAssembly
Temporal - Durable execution system for making code fault-tolerant and simple.
torrent - BitTorrent client package.
trpc-go - The Go language implementation of tRPC, which is a pluggable, high-performance RPC framework.

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Dynamic DNS

Tools for updating dynamic DNS records.

DDNS - Personal DDNS client with Digital Ocean Networking DNS as backend.
dyndns - Background Go process to regularly and automatically check your IP Address and make updates to (one or many) Dynamic DNS records for Google domains whenever your address changes.
GoDNS - A dynamic DNS client tool, supports DNSPod & HE.net, written in Go.

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Email

Libraries and tools that implement email creation and sending.

chasquid - SMTP server written in Go.
douceur - CSS inliner for your HTML emails.
email - A robust and flexible email library for Go.
email-verifier - A Go library for email verification without sending any emails.
go-dkim - DKIM library, to sign & verify email.
go-email-normalizer - Golang library for providing a canonical representation of email address.
go-email-validator - Modular email validator for syntax, disposable, smtp, etc... checking.
go-imap - IMAP library for clients and servers.
go-mail - A simple Go library for sending mails in Go.
go-message - Streaming library for the Internet Message Format and mail messages.
go-premailer - Inline styling for HTML mail in Go.
go-simple-mail - Very simple package to send emails with SMTP Keep Alive and two timeouts: Connect and Send.
Hectane - Lightweight SMTP client providing an HTTP API.
hermes - Golang package that generates clean, responsive HTML e-mails.
Maddy - All-in-one (SMTP, IMAP, DKIM, DMARC, MTA-STS, DANE) email server
mailchain - Send encrypted emails to blockchain addresses written in Go.
mailgun-go - Go library for sending mail with the Mailgun API.
MailHog - Email and SMTP testing with web and API interface.
Mailpit - Email and SMTP testing tool for developers.
mailx - Mailx is a library that makes it easier to send email via SMTP. It is an enhancement of the golang standard library net/smtp.
mox - Modern full-featured secure mail server for low-maintenance, self-hosted email.
SendGrid - SendGrid's Go library for sending email.
smtp - SMTP server protocol state machine.
smtpmock - Lightweight configurable multithreaded fake SMTP server. Mimic any SMTP behaviour for your test environment.
truemail-go - Configurable Golang email validator/verifier. Verify email via Regex, DNS, SMTP and even more.

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Embeddable Scripting Languages

Embedding other languages inside your go code.

anko - Scriptable interpreter written in Go.
binder - Go to Lua binding library, based on gopher-lua.
cel-go - Fast, portable, non-Turing complete expression evaluation with gradual typing.
ecal - A simple embeddable scripting language which supports concurrent event processing.
expr - Expression evaluation engine for Go: fast, non-Turing complete, dynamic typing, static typing.
gentee - Embeddable scripting programming language.
gisp - Simple LISP in Go.
go-duktape - Duktape JavaScript engine bindings for Go.
go-lua - Port of the Lua 5.2 VM to pure Go.
go-php - PHP bindings for Go.
go-python - naive go bindings to the CPython C-API.
goal - An embeddable scripting array language.
goja - ECMAScript 5.1(+) implementation in Go.
golua - Go bindings for Lua C API.
gopher-lua - Lua 5.1 VM and compiler written in Go.
gval - A highly customizable expression language written in Go.
metacall - Cross-platform Polyglot Runtime which supports NodeJS, JavaScript, TypeScript, Python, Ruby, C#, WebAssembly, Java, Cobol and more.
ngaro - Embeddable Ngaro VM implementation enabling scripting in Retro.
prolog - Embeddable Prolog.
purl - Perl 5.18.2 embedded in Go.
starlark-go - Go implementation of Starlark: Python-like language with deterministic evaluation and hermetic execution.
starlet - Go wrapper for starlark-go that simplifies script execution, offers data conversion, and useful Starlark libraries and extensions.
tengo - Bytecode compiled script language for Go.
Wa/凹语言 - The Wa Programming Language embedded in Go.

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Error Handling

Libraries for handling errors.

emperror - Error handling tools and best practices for Go libraries and applications.
eris - A better way to handle, trace, and log errors in Go. Compatible with the standard error library and github.com/pkg/errors.
errlog - Hackable package that determines responsible source code for an error (and some other fast-debugging features). Pluggable to any logger in-place.
errors - Drop-in replacement for the standard library errors package and github.com/pkg/errors. Provides various error handling primitives.
errors - Simple golang error handling with classification primitives.
errors - The most simple error wrapper with awesome performance and minimal memory overhead.
errors - Providing errors with a stack trace and optional structured details. Compatible with github.com/pkg/errors API but does not use it internally.
errors - Drop-in replacement for builtin Go errors. This is a minimal error handling package with custom error types, user friendly messages, Unwrap & Is. With very easy to use and straightforward helper functions.
errors - Go error library with error portability over the network.
errorx - A feature rich error package with stack traces, composition of errors and more.
exception - A simple utility package for exception handling with try-catch in Golang.
Falcon - A Simple Yet Highly Powerful Package For Error Handling.
Fault - An ergonomic mechanism for wrapping errors in order to facilitate structured metadata and context for error values.
go-multierror - Go (golang) package for representing a list of errors as a single error.
multierr - Package for representing a list of errors as a single error.
oops - Error handling with context, stack trace and source fragments.
tracerr - Golang errors with stack trace and source fragments.

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File Handling

Libraries for handling files and file systems.

afero - FileSystem Abstraction System for Go.
afs - Abstract File Storage (mem, scp, zip, tar, cloud: s3, gs) for Go.
baraka - A library to process http file uploads easily.
bigfile - A file transfer system, support to manage files with http api, rpc call and ftp client.
checksum - Compute message digest, like MD5, SHA256, SHA1, CRC or BLAKE2s, for large files.
copy - Copy directory recursively.
flop - File operations library which aims to mirror feature parity with GNU cp.
gdu - Disk usage analyzer with console interface.
go-csv-tag - Load csv file using tag.
go-decent-copy - Copy files for humans.
go-exiftool - Go bindings for ExifTool, the well-known library used to extract as much metadata as possible (EXIF, IPTC, ...) from files (pictures, PDF, office, ...).
go-gtfs - Load gtfs files in go.
go-wkhtmltopdf - A package to convert an HTML template to a PDF file.
gofs - A cross-platform real-time file synchronization tool out of the box.
gut/yos - Simple and reliable package for file operations like copy/move/diff/list on files, directories and symbolic links.
higgs - A tiny cross-platform Go library to hide/unhide files and directories.
iso9660 - A package for reading and creating ISO9660 disk images
notify - File system event notification library with simple API, similar to os/signal.
opc - Load Open Packaging Conventions (OPC) files for Go.
parquet - Read and write parquet files.
pathtype - Treat paths as their own type instead of using strings.
pdfcpu - PDF processor.
skywalker - Package to allow one to concurrently go through a filesystem with ease.
todotxt - Go library for Gina Trapani's todo.txt files, supports parsing and manipulating of task lists in the todo.txt format.
vfs - A pluggable, extensible, and opinionated set of filesystem functionality for Go across a number of filesystem types such as os, S3, and GCS.

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Financial

Packages for accounting and finance.

accounting - money and currency formatting for golang.
ach - A reader, writer, and validator for Automated Clearing House (ACH) files.
bbgo - A crypto trading bot framework written in Go. Including common crypto exchange API, standard indicators, back-testing and many built-in strategies.
currency - Handles currency amounts, provides currency information and formatting.
currency - High performant & accurate currency computation package.
decimal - Arbitrary-precision fixed-point decimal numbers.
decimal - Immutable decimal numbers with panic-free arithmetic.
fpdecimal - Fast and precise serialization and arithmetic for small fixed-point decimals
fpmoney - Fast and simple ISO4217 fixed-point decimal money.
go-finance - Library of financial functions for time value of money (annuities), cash flow, interest rate conversions, bonds and depreciation calculations.
go-finance - Module to fetch exchange rates, check VAT numbers via VIES and check IBAN bank account numbers.
go-finnhub - Client for stock market, forex and crypto data from finnhub.io. Access real-time financial market data from 60+ stock exchanges, 10 forex brokers, and 15+ crypto exchanges.
go-money - Implementation of Fowler's Money pattern.
go-nowpayments - Library for the crypto NOWPayments API.
money - Immutable monetary amounts and exchange rates with panic-free arithmetic.
ofxgo - Query OFX servers and/or parse the responses (with example command-line client).
orderbook - Matching Engine for Limit Order Book in Golang.
payme - QR code generator (ASCII & PNG) for SEPA payments.
sleet - One unified interface for multiple Payment Service Providers (PsP) to process online payment.
swift - Offline validity check of IBAN (International Bank Account Number) and retrieval of BIC (for some countries).
techan - Technical analysis library with advanced market analysis and trading strategies.
ticker - Terminal stock watcher and stock position tracker.
transaction - Embedded transactional database of accounts, running in multithreaded mode.
udecimal - High performance, high precision, zero allocation fixed-point decimal library for financial applications.
vat - VAT number validation & EU VAT rates.

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Forms

Libraries for working with forms.

bind - Bind form data to any Go values.
binding - Binds form and JSON data from net/http Request to struct.
checker - Checker helps validating user input through rules defined in struct tags or directly through functions.
conform - Keeps user input in check. Trims, sanitizes & scrubs data based on struct tags.
form - Decodes url.Values into Go value(s) and Encodes Go value(s) into url.Values. Dual Array and Full map support.
formam - decode form's values into a struct.
forms - Framework-agnostic library for parsing and validating form/JSON data which supports multipart forms and files.
gbind - Bind data to any Go value. Can use built-in and custom expression binding capabilities; supports data validation
gorilla/csrf - CSRF protection for Go web applications & services.
httpin - Decode an HTTP request into a custom struct, including querystring, forms, HTTP headers, etc.
nosurf - CSRF protection middleware for Go.
qs - Go module for encoding structs into URL query parameters.
queryparam - Decode url.Values into usable struct values of standard or custom types.

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Functional

Packages to support functional programming in Go.

fp-go - Collection of Functional Programming helpers powered by Golang 1.18+ generics.
fpGo - Monad, Functional Programming features for Golang.
fuego - Functional Experiment in Go.
go-functional - Functional programming in Go using generics
go-underscore - Useful collection of helpfully functional Go collection utilities.
gofp - A lodash like powerful utility library for Golang.
mo - Monads and popular FP abstractions, based on Go 1.18+ Generics (Option, Result, Either...).
underscore - Functional programming helpers for Go 1.18 and beyond.
valor - Generic option and result types that optionally contain a value.

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Game Development

Awesome game development libraries.

Azul3D - 3D game engine written in Go.
Ebitengine - dead simple 2D game engine in Go.
ecs - Build your own Game-Engine based on the Entity Component System concept in Golang.
engo - Engo is an open-source 2D game engine written in Go. It follows the Entity-Component-System paradigm.
fantasyname - Fantasy names generator.
g3n - Go 3D Game Engine.
go-astar - Go implementation of the A* path finding algorithm.
go-sdl2 - Go bindings for the Simple DirectMedia Layer.
go3d - Performance oriented 2D/3D math package for Go.
gonet - Game server skeleton implemented with golang.
goworld - Scalable game server engine, featuring space-entity framework and hot-swapping.
grid - Generic 2D grid with ray-casting, shadow-casting and path finding.
Harfang3D - 3D engine for the Go language, works on Windows and Linux (Harfang on Go.dev).
Leaf - Lightweight game server framework.
nano - Lightweight, facility, high performance golang based game server framework.
Oak - Pure Go game engine.
Pitaya - Scalable game server framework with clustering support and client libraries for iOS, Android, Unity and others through the C SDK.
Pixel - Hand-crafted 2D game library in Go.
prototype - Cross-platform (Windows/Linux/Mac) library for creating desktop games using a minimal API.
raylib-go - Go bindings for raylib, a simple and easy-to-use library to learn videogames programming.
termloop - Terminal-based game engine for Go, built on top of Termbox.
tile - Data-oriented and cache-friendly 2D Grid library (TileMap), includes pathfinding, observers and import/export.

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Generators

Tools that generate Go code.

convergen - Feature rich type-to-type copy code generator.
copygen - Generate type-to-type and type-based code without reflection.
generis - Code generation tool providing generics, free-form macros, conditional compilation and HTML templating.
go-enum - Code generation for enums from code comments.
go-linq - .NET LINQ-like query methods for Go.
goderive - Derives functions from input types
goverter - Generate converters by defining an interface.
GoWrap - Generate decorators for Go interfaces using simple templates.
interfaces - Command line tool for generating interface definitions.
jennifer - Generate arbitrary Go code without templates.
oapi-codegen - This package contains a set of utilities for generating Go boilerplate code for services based on OpenAPI 3.0 API definitions.
typeregistry - A library to create type dynamically.

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Geographic

Geographic tools and servers

geoos - A library provides spatial data and geometric algorithms.
geoserver - geoserver Is a Go Package For Manipulating a GeoServer Instance via the GeoServer REST API.
gismanager - Publish Your GIS Data(Vector Data) to PostGIS and Geoserver.
godal - Go wrapper for GDAL.
H3 - Go bindings for H3, a hierarchical hexagonal geospatial indexing system.
H3 GeoJSON - Conversion utilities between H3 indexes and GeoJSON.
H3GeoDist - Distribution of Uber H3geo cells by virtual nodes.
mbtileserver - A simple Go-based server for map tiles stored in mbtiles format.
osm - Library for reading, writing and working with OpenStreetMap data and APIs.
pbf - OpenStreetMap PBF golang encoder/decoder.
S2 geojson - Convert geojson to s2 cells & demonstrating some S2 geometry features on map.
S2 geometry - S2 geometry library in Go.
simplefeatures - simplesfeatures is a 2D geometry library that provides Go types that model geometries, as well as algorithms that operate on them.
Tile38 - Geolocation DB with spatial index and realtime geofencing.
Web-Mercator-Projection A project to easily use and convert LonLat, Point and Tile to display info, markers, etc, in a map using the Web Mercator Projection.
WGS84 - Library for Coordinate Conversion and Transformation (ETRS89, OSGB36, NAD83, RGF93, Web Mercator, UTM).

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Go Compilers

Tools for compiling Go to other languages.

c2go - Convert C code to Go code.
c4go - Transpile C code to Go code.
esp32 - Transpile Go into Arduino code.
f4go - Transpile FORTRAN 77 code to Go code.
gopherjs - Compiler from Go to JavaScript.
tardisgo - Golang to Haxe to CPP/CSharp/Java/JavaScript transpiler.

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Goroutines

Tools for managing and working with Goroutines.

ants - A high-performance and low-cost goroutine pool in Go.
artifex - Simple in-memory job queue for Golang using worker-based dispatching.
async - An asynchronous task package with async/await style for Go.
async - An alternative sync library for Go (Future, Promise, Locks).
async - A safe way to execute functions asynchronously, recovering them in case of panic.
async-job - AsyncJob is an asynchronous queue job manager with light code, clear and speed.
breaker - Flexible mechanism to make execution flow interruptible.
channelify - Transform your function to return channels for easy and powerful parallel processing.
conc - conc is your toolbelt for structured concurrency in go, making common tasks easier and safer.
concurrency-limiter - Concurrency limiter with support for timeouts, dynamic priority and context cancellation of goroutines.
conexec - A concurrent toolkit to help execute funcs concurrently in an efficient and safe way. It supports specifying the overall timeout to avoid blocking and uses goroutine pool to improve efficiency.
cyclicbarrier - CyclicBarrier for golang.
execpool - A pool built around exec.Cmd that spins up a given number of processes in advance and attaches stdin and stdout to them when needed. Very similar to FastCGI or Apache Prefork MPM but works for any command.
flowmatic - Structured concurrency made easy.
go-accumulator - Solution for accumulation of events and their subsequent processing.
go-actor - A tiny library for writing concurrent programs using actor model.
go-floc - Orchestrate goroutines with ease.
go-flow - Control goroutines execution order.
go-tools/multithreading - Manage a pool of goroutines using this lightweight library with a simple API.
go-trylock - TryLock support on read-write lock for Golang.
go-waitgroup - Like sync.WaitGroup with error handling and concurrency control.
go-workerpool - Inspired from Java Thread Pool, Go WorkerPool aims to control heavy Go Routines.
go-workers - Easily and safely run workers for large data processing pipelines.
goccm - Go Concurrency Manager package limits the number of goroutines that allowed to run concurrently.
gohive - A highly performant and easy to use Goroutine pool for Go.
gollback - asynchronous simple function utilities, for managing execution of closures and callbacks.
gowl - Gowl is a process management and process monitoring tool at once. An infinite worker pool gives you the ability to control the pool and processes and monitor their status.
goworker - goworker is a Go-based background worker.
gowp - gowp is concurrency limiting goroutine pool.
gpool - manages a resizeable pool of context-aware goroutines to bound concurrency.
grpool - Lightweight Goroutine pool.
hands - A process controller used to control the execution and return strategies of multiple goroutines.
Hunch - Hunch provides functions like: All, First, Retry, Waterfall etc., that makes asynchronous flow control more intuitive.
kyoo - Provides an unlimited job queue and concurrent worker pools.
neilotoole/errgroup - Drop-in alternative to sync/errgroup, limited to a pool of N worker goroutines.
nursery - Structured concurrency in Go.
oversight - Oversight is a complete implementation of the Erlang supervision trees.
parallel-fn - Run functions in parallel.
pond - Minimalistic and High-performance goroutine worker pool written in Go.
pool - Limited consumer goroutine or unlimited goroutine pool for easier goroutine handling and cancellation.
rill - Go toolkit for clean, composable, channel-based concurrency.
routine - routine is a ThreadLocal for go library. It encapsulates and provides some easy-to-use, non-competitive, high-performance goroutine context access interfaces, which can help you access coroutine context information more gracefully.
routine - go routine control with context, support: Main, Go, Pool and some useful Executors.
semaphore - Semaphore pattern implementation with timeout of lock/unlock operations based on channel and context.
semaphore - Fast resizable semaphore implementation based on CAS (faster than channel-based semaphore implementations).
stl - Software transactional locks based on Software Transactional Memory (STM) concurrency control mechanism.
threadpool - Golang threadpool implementation.
tunny - Goroutine pool for golang.
worker-pool - goworker is a Go simple async worker pool.
workerpool - Goroutine pool that limits the concurrency of task execution, not the number of tasks queued.

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GUI

Libraries for building GUI Applications.

Toolkits

app - Package to create apps with GO, HTML and CSS. Supports: MacOS, Windows in progress.
cimgui-go - Auto generated Go wrapper for Dear ImGui via cimgui.
Cogent Core - A framework for building 2D and 3D apps that run on macOS, Windows, Linux, iOS, Android, and the web.
DarwinKit - Build native macOS applications using Go.
energy - Cross-platform based on LCL(Native System UI Control Library) and CEF(Chromium Embedded Framework) (Windows/ macOS / Linux)
fyne - Cross platform native GUIs designed for Go based on Material Design. Supports: Linux, macOS, Windows, BSD, iOS and Android.
gio - Gio is a library for writing cross-platform immediate mode GUI-s in Go. Gio supports all the major platforms: Linux, macOS, Windows, Android, iOS, FreeBSD, OpenBSD and WebAssembly.
go-gtk - Go bindings for GTK.
go-sciter - Go bindings for Sciter: the Embeddable HTML/CSS/script engine for modern desktop UI development. Cross platform.
Goey - Cross platform UI toolkit aggregator for Windows / Linux / Mac. GTK, Cocoa, Windows API
goradd/html5tag - Library for outputting HTML5 tags.
gotk3 - Go bindings for GTK3.
gowd - Rapid and simple desktop UI development with GO, HTML, CSS and NW.js. Cross platform.
qt - Qt binding for Go (support for Windows / macOS / Linux / Android / iOS / Sailfish OS / Raspberry Pi).
Spot - Reactive, cross-platform desktop GUI toolkit.
ui - Platform-native GUI library for Go. Cross platform.
unison - A unified graphical user experience toolkit for Go desktop applications. macOS, Windows, and Linux are supported.
Wails - Mac, Windows, Linux desktop apps with HTML UI using built-in OS HTML renderer.
walk - Windows application library kit for Go.
webview - Cross-platform webview window with simple two-way JavaScript bindings (Windows / macOS / Linux).

Interaction

AppIndicator Go - Go bindings for libappindicator3 C library.
gosx-notifier - OSX Desktop Notifications library for Go.
mac-activity-tracker - OSX library to notify about any (pluggable) activity on your machine.
mac-sleep-notifier - OSX Sleep/Wake notifications in golang.
robotgo - Go Native cross-platform GUI system automation. Control the mouse, keyboard and other.
systray - Cross platform Go library to place an icon and menu in the notification area.
trayhost - Cross-platform Go library to place an icon in the host operating system's taskbar.
zenity - Cross-platform Go library and CLI to create simple dialogs that interact graphically with the user.

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Hardware

Libraries, tools, and tutorials for interacting with hardware.

arduino-cli - Official Arduino CLI and library. Can run standalone, or be incorporated into larger Go projects.
emgo - Go-like language for programming embedded systems (e.g. STM32 MCU).
ghw - Golang hardware discovery/inspection library.
go-osc - Open Sound Control (OSC) bindings for Go.
go-rpio - GPIO for Go, doesn't require cgo.
goroslib - Robot Operating System (ROS) library for Go.
joystick - a polled API to read the state of an attached joystick.
sysinfo - A pure Go library providing Linux OS / kernel / hardware system information.

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Images

Libraries for manipulating images.

bild - Collection of image processing algorithms in pure Go.
bimg - Small package for fast and efficient image processing using libvips.
cameron - An avatar generator for Go.
canvas - Vector graphics to PDF, SVG or rasterized image.
color-extractor - Dominant color extractor with no external dependencies.
darkroom - An image proxy with changeable storage backends and image processing engines with focus on speed and resiliency.
draft - Generate High Level Microservice Architecture diagrams for GraphViz using simple YAML syntax.
geopattern - Create beautiful generative image patterns from a string.
gg - 2D rendering in pure Go.
gift - Package of image processing filters.
gltf - Efficient and robust glTF 2.0 reader, writer and validator.
go-cairo - Go binding for the cairo graphics library.
go-gd - Go binding for GD library.
go-nude - Nudity detection with Go.
go-qrcode - Generate QR codes with personalized styles, allowing adjustments to color, block size, shape, and icons.
go-webcolors - Port of webcolors library from Python to Go.
go-webp - Library for encode and decode webp pictures, using libwebp.
gocv - Go package for computer vision using OpenCV 3.3+.
goimagehash - Go Perceptual image hashing package.
goimghdr - The imghdr module determines the type of image contained in a file for Go.
govatar - Library and CMD tool for generating funny avatars.
govips - A lightning fast image processing and resizing library for Go.
gowitness - Screenshoting webpages using go and headless chrome on command line.
gridder - A Grid based 2D Graphics library.
image2ascii - Convert image to ASCII.
imagick - Go binding to ImageMagick's MagickWand C API.
imaginary - Fast and simple HTTP microservice for image resizing.
imaging - Simple Go image processing package.
imagor - Fast, secure image processing server and Go library, using libvips.
img - Selection of image manipulation tools.
ln - 3D line art rendering in Go.
mergi - Tool & Go library for image manipulation (Merge, Crop, Resize, Watermark, Animate).
mort - Storage and image processing server written in Go.
mpo - Decoder and conversion tool for MPO 3D Photos.
picfit - An image resizing server written in Go.
pt - Path tracing engine written in Go.
rez - Image resizing in pure Go and SIMD.
scout - Scout is a standalone open source software solution for DIY video security.
smartcrop - Finds good crops for arbitrary images and crop sizes.
steganography - Pure Go Library for LSB steganography.
stegify - Go tool for LSB steganography, capable of hiding any file within an image.
svgo - Go Language Library for SVG generation.
tga - Package tga is a TARGA image format decoder/encoder.
transformimgs - Transformimgs resizes and optimises images for Web using next-generation formats.
webp-server - Simple and minimal image server capable of storing, resizing, converting and caching images.

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IoT (Internet of Things)

Libraries for programming devices of the IoT.

connectordb - Open-Source Platform for Quantified Self & IoT.
devices - Suite of libraries for IoT devices, experimental for x/exp/io.
ekuiper - Lightweight data stream processing engine for IoT edge.
eywa - Project Eywa is essentially a connection manager that keeps track of connected devices.
flogo - Project Flogo is an Open Source Framework for IoT Edge Apps & Integration.
gatt - Gatt is a Go package for building Bluetooth Low Energy peripherals.
gobot - Gobot is a framework for robotics, physical computing, and the Internet of Things.
huego - An extensive Philips Hue client library for Go.
iot - IoT is a simple framework for implementing a Google IoT Core device.
mainflux - Industrial IoT Messaging and Device Management Server.
periph - Peripherals I/O to interface with low-level board facilities.
rulego - RuleGo is a lightweight, high-performance, embedded, orchestrable component-based rule engine for IoT edge.