pkg.gl

Simple, extremely lightweight, extensible, configuration management library for Go. Supports JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper.

ilyakaznacheev/cleanenv

✨Clean and minimalistic environment configuration reader for Golang

a8m/envsubst

Environment variables substitution for Go

magiconair/properties

Java properties scanner for Go

koding/multiconfig

Load configuration from multiple sources in Go

subosito/gotenv

Load environment variables from `.env` or `io.Reader` in Go.

Containers

2.1k

Containers and Kubernetes

fsouza/go-dockerclient

Go client for the Docker Engine API.

containers/buildah

A tool that facilitates building OCI images.

containers/storage

Container Storage Library

containerd/cri

Moved to https://github.com/containerd/containerd/tree/master/pkg/cri . If you wish to submit issues/PRs, please submit to https://github.com/containerd/containerd

samalba/dockerclient

Docker client library in Go

regclient/regclient

Docker and OCI Registry Client in Go and tooling using those libraries.

portainer/agent

The Portainer agent

looplab/logspout-logstash

A minimalistic adapter for github.com/gliderlabs/logspout to write to Logstash

openshift/imagebuilder

Builds Dockerfile using the Docker client (with squashing! and secrets!)

rexray/gocsi

A Container Storage Interface (CSI) library, client, and other helpful utilities created with Go.

Cryptography

1.1k

square/go-jose

An implementation of JOSE standards (JWE, JWS, JWT) in Go

google/certificate-transparency-go

Auditing for TLS certificates (Go code)

gtank/cryptopasta

copy & paste-friendly golang crypto

zalando/go-keyring

Cross-platform keyring interface for Go

speps/go-hashids

Go (golang) implementation of http://www.hashids.org

keybase/saltpack

a modern crypto messaging format

btcsuite/btcutil

Provides bitcoin-specific convenience functions and types

miekg/pkcs11

pkcs11 wrapper for Go

flynn/noise

Go implementation of the Noise Protocol Framework

kevinburke/nacl

Pure Go implementation of the NaCL set of API's

Database Implementations

2.4k

influxdata/influxdb

Scalable datastore for metrics, events, and real-time analytics

go.etcd.io/bbolt

An embedded key/value database for Go.

pingcap/tidb

TiDB - the open-source, cloud-native, distributed SQL database designed for modern applications.

hashicorp/raft

Golang implementation of the Raft consensus protocol

boltdb/bolt

An embedded key/value database for Go.

patrickmn/go-cache

An in-memory key:value store/cache (similar to Memcached) library for Go, suitable for single-machine applications.

hashicorp/go-memdb

Golang in-memory database built on immutable radix trees

allegro/bigcache

Efficient cache for gigabytes of data written in Go.

tidwall/buntdb

BuntDB is an embeddable, in-memory key/value database for Go with custom indexing and geospatial support

coocood/freecache

A cache library for Go with zero GC overhead.

Database Interface

go-sql-driver/mysql

Go MySQL Driver is a MySQL driver for Go's (golang) database/sql package

jackc/pgx

PostgreSQL driver and toolkit for Go

jmoiron/sqlx

general purpose extensions to golang's database/sql

mattn/go-sqlite3

sqlite3 driver for go using database/sql

lib/pq

Pure Go Postgres driver for database/sql

graph-gophers/graphql-go

GraphQL server with a focus on ease of use

pressly/goose

A database migration tool. Supports SQL migrations and Go functions.

rubenv/sql-migrate

SQL schema migration tool for Go.

go-gorp/gorp

Go Relational Persistence - an ORM-ish library for Go

denisenkom/go-mssqldb

Microsoft SQL server driver written in go language

Date and Time

998

jinzhu/now

Now is a time toolkit for golang

araddon/dateparse

GoLang Parse many date strings without knowing format in advance.

gorhill/cronexpr

Cron expression parser in Go language (golang)

beevik/ntp

a simple ntp client package for go

hako/durafmt

:clock8: Better time duration formatting in Go!

go-playground/locales

:earth_americas: a set of locales generated from the CLDR Project which can be used independently or within an i18n package; these were built for use with, but not exclusive to https://github.com/go-playground/universal-translator

uniplaces/carbon

Carbon for Golang, an extension for Time

djherbis/times

#golang file times (atime, mtime, ctime, btime)

teambition/rrule-go

Go library for working with recurrence rules for calendar dates.

leekchan/timeutil

timeutil - useful extensions (Timedelta, Strftime, ...) to the golang's time package

DevOps, CI and CD

4.3k

bndr/gojenkins

Jenkins API Client in Go. Looking for maintainers to move this project forward.

beanstalkd/go-beanstalk

Go client for beanstalkd

hashicorp/go-tfe

HCP Terraform/Enterprise API Client/SDK in Golang

concourse/concourse

Concourse is a container-based automation system written in Go.

tj/go-update

Go package for auto-updating system-specific binaries via GitHub releases.

contribsys/faktory

Language-agnostic persistent background job server

google/rpmpack

rpmpack (tar2rpm) - package rpms in pure golang or cli

runabol/tork

Tork is a lightweight, distributed workflow engine that runs tasks as simple scripts within Docker containers.

mattetti/audio

This is a playground, production ready code is available at https://github.com/go-audio/

capnspacehook/taskmaster

Windows Task Scheduler Library for Go

Email

631

jordan-wright/email

Robust and flexible email library for Go

go-gomail/gomail

The best way to send emails in Go.

emersion/go-smtp

📤 An SMTP client & server library written in Go

emersion/go-message

✉️ A streaming Go library for the Internet Message Format and mail messages

mhale/smtpd

An SMTP server package written in Go, in the style of the built-in HTTP server.

wneessen/go-mail

📧 Easy to use, yet comprehensive library for sending mails with Go

mattbaird/gochimp

Golang based client API for Mailchimp, including Mandrill

ainsleyclark/go-mail

📧 A cross platform mail driver for GoLang. Featuring Mailgun, Postal, Postmark, SendGrid, SparkPost & SMTP.

toorop/go-dkim

DKIM package for golang

mailhog/smtp

MailHog SMTP Protocol

Embeddable Scripting Languages

1.3k

Embeddable scripting languages and virtual machines

yuin/gopher-lua

GopherLua: VM and compiler for Lua in Go

bitfield/script

Making it easy to write shell-like scripts in Go

jmespath/go-jmespath

Golang implementation of JMESPath.

antchfx/xpath

XPath package for Golang, supports HTML, XML, JSON document query.

gaia-pipeline/gaia

Build powerful pipelines in any programming language.

google/shlex

Automatically exported from code.google.com/p/go-shlex

prataprc/goparsec

Parser combinator in Go. If there are any cross platform issues or backward compatibility issues, please reach out.

ichiban/prolog

The only reasonable scripting engine for Go.

sbinet/go-python

naive go bindings to the CPython2 C-API

hashicorp/go-bexpr

Generic boolean expression evaluation in Go

Encoding and Decoding

1.5k

mitchellh/mapstructure

Go library for decoding generic map values into native Go structures and vice versa.

json-iterator/go

A high-performance 100% compatible drop-in replacement of "encoding/json"

spf13/cast

safe and easy casting from one type to another in Go

mailru/easyjson

Fast JSON serializer for golang.

buger/jsonparser

One of the fastest alternative JSON parser for Go that does not require schema

fatih/structs

Utilities for Go structs

klauspost/reedsolomon

Reed-Solomon Erasure Coding in Go

vmihailenco/msgpack

msgpack.org[Go] MessagePack encoding for Golang

gocarina/gocsv

The GoCSV package aims to provide easy CSV serialization and deserialization to the golang programming language

gorilla/schema

Package gorilla/schema fills a struct with form values.

Error Handling

775

pkg/errors

Simple error handling primitives

hashicorp/go-multierror

A Go (golang) package for representing a list of errors as a single error.

cockroachdb/errors

Go error library with error portability over the network

juju/errors

Common juju errors and functions to annotate errors. Based on juju/errgo

go-errors/errors

errors with stacktraces for go

go.uber.org/multierr

Combine one or more Go errors together

joomcode/errorx

A comprehensive error handling library for Go

rotisserie/eris

Error handling library with readable stack traces and flexible formatting support 🎆

ztrue/tracerr

Golang errors with stack trace and source fragments.

hashicorp/errwrap

Errwrap is a Go (golang) library for wrapping and querying errors.

File Handling

889

fsnotify/fsnotify

Cross-platform filesystem notifications for Go.

spf13/afero

A FileSystem Abstraction System for Go

gabriel-vasile/mimetype

A fast Golang library for media type and file extension detection, based on magic numbers

h2non/filetype

Fast, dependency-free Go package to infer binary file types based on the magic numbers header signature

howeyc/fsnotify

File system notification for Go

rjeczalik/notify

File system event notification library on steroids.

otiai10/copy

Go copy directory recursively

karrick/godirwalk

Fast directory traversal for Golang

jacobsa/fuse

A Go package for implementing a FUSE file system.

blang/vfs

Virtual filesystem library written in golang

Finance

776

shopspring/decimal

Arbitrary-precision fixed-point decimal numbers in Go

ericlagergren/decimal

A high-performance, arbitrary-precision, floating-point decimal library.

leekchan/accounting

money and currency formatting for golang

moov-io/ach

ACH implements a reader, writer, and validator for Automated Clearing House (ACH) files. The HTTP server is available in a Docker image and the Go package is available.

sdcoffey/techan

Technical Analysis Library for Golang

robaho/fixed

high performance fixed decimal place math library for Go

bojanz/currency

Currency handling for Go.

markcheno/go-quote

Yahoo finance/Google finance/Coinbase/Bittrex/Binance/Tiingo historical quote downloader library and cli written in golang

moov-io/iso8583

A golang implementation to marshal and unmarshal iso8583 message.

aclindsa/ofxgo

Golang library for querying and parsing OFX

Game Development

1.9k

Game development tools, simulators and games

faiface/pixel

A hand-crafted 2D game library in Go

notnil/chess

chess package for go

lonng/nano

Lightweight, facility, high performance golang based game server framework

xiaonanln/goworld

Scalable Distributed Game Server Engine with Hot Swapping in Golang

jakecoffman/cp

A pure Go physics library with no dependencies. Unofficial Chipmunk2D port.

beefsack/go-astar

Go implementation of the A* search algorithm

bep/debounce

A debouncer written in Go.

charmbracelet/harmonica

A simple, physics-based animation library 🎼

name5566/leaf

A game server framework in Go (golang)

mtslzr/pokeapi-go

Wrapper for PokeAPI; written in Go.

Geography

313

twpayne/go-geom

Package geom implements efficient geometry types for geospatial applications.

paulmach/orb

Types and utilities for working with 2d geometry in Golang

go-spatial/tegola

Tegola is a Mapbox Vector Tile server written in Go

kellydunn/golang-geo

Geographical calculations in Go.

mmcloughlin/geohash

Golang geohash library

paulmach/go.geojson

Encoding and decoding GeoJSON <-> Go

paulmach/osm

General purpose library for reading, writing and working with OpenStreetMap data

flopp/go-staticmaps

A go (golang) library and command line tool to render static map images using OpenStreetMap tiles.

go-spatial/geom

Geometry interfaces to help drive interoperability within the Go geospatial community

hailocab/go-geoindex

Go native library for fast point tracking and K-Nearest queries

GUI

523

fyne.io/fyne/v2

Cross platform GUI toolkit in Go inspired by Material Design

lxn/walk

A Windows GUI toolkit for the Go Programming Language

getlantern/systray

a cross platfrom Go library to place an icon and menu in the notification area

andlabs/ui

Platform-native GUI library for Go.

google/gxui

An experimental Go cross platform UI library.

ncruces/zenity

Zenity dialogs for Golang, Windows, macOS

go-flutter-desktop/go-flutter

Flutter on Windows, MacOS and Linux - based on Flutter Embedding, Go and GLFW.

mjl-/duit

pure go, cross-platform, MIT-licensed ui toolkit for developers

gen2brain/dlgs

Go cross-platform library for displaying dialogs and input boxes

toqueteos/webbrowser

:snake: Python's webbrowser lib in Go. Simple API for opening web pages on your default browser.

Hardware

Interfacing with hardware and other embedded development

hybridgroup/gobot

Golang framework for robotics, drones, and the Internet of Things (IoT)

go-vgo/robotgo

RobotGo, Go Native cross-platform RPA and GUI automation @vcaesar

stianeikeland/go-rpio

:electric_plug: Raspberry Pi GPIO library for go-lang

kidoman/embd

Embedded Programming Framework in Go

brutella/hc

hc is a lightweight framework to develop HomeKit accessories in Go.

karalabe/hid

Gopher Interface Devices (USB HID)

karalabe/usb

Self contained USB and HID library for Go

mrmorphic/hwio

Go library for hardware I/O control, in the programming style of Arduino

brutella/hap

The HomeKit Accessory Protocol (hap) implemented in Go

davecheney/gpio

GPIO for Go

HTTP clients

1.7k

gocolly/colly

Elegant Scraper and Crawler Framework for Golang

parnurzeal/gorequest

GoRequest -- Simplified HTTP client ( inspired by nodejs SuperAgent )

hashicorp/go-retryablehttp

Retryable HTTP client in Go

hashicorp/go-getter

Package for downloading things from a string URL using a variety of protocols.

avast/retry-go

Simple golang library for retry mechanism

fvbock/endless

Zero downtime restarts for go servers (Drop in replacement for http.ListenAndServe)

levigross/grequests

A Go "clone" of the great and famous Requests library

tebeka/selenium

Selenium/Webdriver client for Go

felixge/httpsnoop

Package httpsnoop provides an easy way to capture http related metrics (i.e. response time, bytes written, and http status code) from your application's http.Handlers.

antchfx/htmlquery

htmlquery is golang XPath package for HTML query.

HTTP framework

gin-gonic/gin

Gin is a HTTP web framework written in Go (Golang). It features a Martini-like API with much better performance -- up to 40 times faster. If you need smashing performance, get yourself some Gin.

valyala/fasthttp

Fast HTTP package for Go. Tuned for high performance. Zero memory allocations in hot paths. Up to 10x faster than net/http

go-chi/chi

lightweight, idiomatic and composable router for building Go HTTP services

micro/go-micro

A Go microservices framework

julienschmidt/httprouter

A high performance HTTP request router that scales well

gorilla/mux

Package gorilla/mux is a powerful HTTP router and URL matcher for building Go web servers with 🦍

kataras/iris

The fastest HTTP/2 Go Web Framework. New, modern and easy to learn. Fast development with Code you control. Unbeatable cost-performance ratio :rocket:

revel/revel

A high productivity, full-stack web framework for the Go language.

goadesign/goa

Design-first Go framework that generates API code, documentation, and clients. Define once in an elegant DSL, deploy as HTTP and gRPC services with zero drift between code and docs.

gobuffalo/buffalo

Rapid Web Development w/ Go

HTTP middleware

583

grpc-ecosystem/go-grpc-middleware

Golang gRPC Middlewares: interceptor chaining, auth, logging, retries and more.

swaggo/gin-swagger

gin middleware to automatically generate RESTful API documentation with Swagger 2.0.

gin-contrib/cors

Official CORS gin's middleware

justinas/alice

Painless middleware chaining for Go

gorilla/handlers

Package gorilla/handlers is a collection of useful middleware for Go HTTP services & web applications 🛃

justinas/nosurf

CSRF protection middleware for Go.

gorilla/csrf

Package gorilla/csrf provides Cross Site Request Forgery (CSRF) prevention middleware for Go web applications & services 🔒

NYTimes/gziphandler

Go middleware to gzip HTTP responses

didip/tollbooth

Simple middleware to rate-limit HTTP requests.

braintree/manners

A polite Go HTTP server that shuts down gracefully.

Identifiers

310

google/uuid

Go package for UUIDs based on RFC 4122 and DCE 1.1: Authentication and Security Services.

rs/xid

xid is a globally unique id generator thought for the web

oklog/ulid

Universally Unique Lexicographically Sortable Identifier (ULID) in Go

segmentio/ksuid

K-Sortable Globally Unique IDs

sony/sonyflake

A distributed unique ID generator inspired by Twitter's Snowflake

bwmarrin/snowflake

A simple to use Go (golang) package to generate or parse Twitter snowflake IDs

teris-io/shortid

Super short, fully unique, non-sequential and URL friendly Ids

matoous/go-nanoid

Golang random IDs generator.

dchest/uniuri

Go package uniuri generates random strings good for use in URIs to identify unique objects.

nu7hatch/gouuid

Go binding for libuuid

Kubernetes

3.2k

argoproj/argo-cd

Declarative Continuous Deployment for Kubernetes

sigs.k8s.io/controller-runtime

Repo for the controller-runtime subproject of kubebuilder (sig-apimachinery)

fission/fission

Fast and Simple Serverless Functions for Kubernetes

ericchiang/k8s

A simple Kubernetes Go client

k8s.io/code-generator

Generators for kube-like API types

k8s.io/kops

Kubernetes Operations (kOps) - Production Grade k8s Installation, Upgrades and Management

k8s.io/cloud-provider

cloud-provider defines the shared interfaces which Kubernetes cloud providers implement. These interfaces allow various controllers to integrate with any cloud provider in a pluggable fashion. Please file any issues against the main Kubernetes repo.

cznic/kv

github.com/cznic/kv has moved to modernc.org/kv

k8s.io/kubectl

Issue tracker and mirror of kubectl code

kmodules.xyz/client-go

Kubernetes client-go utilities

Load Testing

280

myzhan/boomer

A better load generator for locust, written in golang.

tsenart/vegeta

HTTP load testing tool and library. It's over 9000!

httprunner/hrp

One-stop solution for HTTP(S) testing, covering API testing, load testing and digital experience monitoring (DEM).

rakyll/hey

HTTP load generator, ApacheBench (ab) replacement

tidwall/redbench

Benchmarking for custom Redis commands and modules

codesenberg/bombardier

Fast cross-platform HTTP benchmarking tool written in Go

bojand/ghz

Simple gRPC benchmarking and load testing tool

fortio.org/fortio

Fortio load testing library, command line tool, advanced echo server and web UI in go (golang). Allows to specify a set query-per-second load and record latency histograms and other useful stats.

fortio/fortio

Fortio load testing library, command line tool, advanced echo server and web UI in go (golang). Allows to specify a set query-per-second load and record latency histograms and other useful stats.

tsliwowicz/go-wrk

go-wrk - a HTTP benchmarking tool based in spirit on the excellent wrk tool (https://github.com/wg/wrk)

Logging

2.8k

sirupsen/logrus

Structured, pluggable logging for Go.

go.uber.org/zap

Blazing fast, structured, leveled logging in Go.

uber-go/zap

Blazing fast, structured, leveled logging in Go.

golang/glog

Leveled execution logs for Go

rs/zerolog

Zero Allocation JSON Logger

natefinch/lumberjack

lumberjack is a log rolling package for Go

op/go-logging

Golang logging library

go-logr/logr

A simple logging interface for Go

cihub/seelog

Seelog is a native Go logging library that provides flexible asynchronous dispatching, filtering, and formatting.

apex/log

Structured logging package for Go.

Machine Learning

483

And science in general: math, statistics, etc.

montanaflynn/stats

A well tested and comprehensive Golang statistics library package with no dependencies.

gorgonia.org/gorgonia

Gorgonia is a library that helps facilitate machine learning in Go.

jbrukh/bayesian

Naive Bayesian Classification for Golang.

gonum/stat

Statistics package for Go [DEPRECATED]

sugarme/gotch

Go binding for Pytorch C++ API (libtorch)

patrikeh/go-deep

Artificial Neural Network

c-bata/goptuna

A hyperparameter optimization framework, inspired by Optuna.

leesper/go_rng

A pseudo-random number generator wriiten in Golang

wangkuiyi/gotorch

A Go idiomatic binding to the C++ core of PyTorch

kubeflow/arena

A CLI for Kubeflow.

Messaging

nats-io/nats.go

Golang client for NATS, the cloud native messaging system.

streadway/amqp

Go client for AMQP 0.9.1

pebbe/zmq4

A Go interface to ZeroMQ version 4

godbus/dbus

Native Go bindings for D-Bus

gen2brain/beeep

Go cross-platform library for sending desktop notifications, alerts and beeps

sideshow/apns2

⚡ HTTP/2 Apple Push Notification Service (APNs) push provider for Go — Send push notifications to iOS, tvOS, Safari and OSX apps, using the APNs HTTP/2 protocol.

bsm/sarama-cluster

Cluster extensions for Sarama, the Go client library for Apache Kafka 0.9 [DEPRECATED]

lovoo/goka

Goka is a compact yet powerful distributed stream processing library for Apache Kafka written in Go.

centrifugal/centrifuge

Real-time messaging library for Go. The simplest way to add feature-rich and scalable WebSocket support to your application. The core of Centrifugo server.

gopcua/opcua

Native Go OPC-UA library

Network Programming

6.9k

miekg/dns

DNS library in Go

google.golang.org/grpc

The Go language implementation of gRPC. HTTP/2 based RPC

gorilla/websocket

Package gorilla/websocket is a fast, well-tested and widely used WebSocket implementation for Go.

libp2p/go-libp2p

libp2p implementation in Go

google/gopacket

Provides packet processing capabilities for Go

vishvananda/netlink

Simple netlink library for go.

hashicorp/yamux

Golang connection multiplexing library

gliderlabs/ssh

Easy SSH servers in Golang

pkg/sftp

SFTP support for the go.crypto/ssh package

anacrolix/torrent

Full-featured BitTorrent client package and utilities

Observability

influxdata/telegraf

Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.

rcrowley/go-metrics

Go port of Coda Hale's Metrics library

go.opentelemetry.io/otel

OpenTelemetry Go API and SDK

opentracing/opentracing-go

OpenTracing API for Go. 🛑 This library is DEPRECATED! https://github.com/opentracing/specification/issues/163

influxdata/kapacitor

Open source framework for processing, monitoring, and alerting on time series data

pkg/profile

Simple profiling for Go

grpc-ecosystem/go-grpc-prometheus

Prometheus monitoring for your gRPC Go servers.

uber-go/tally

A Go metrics interface with fast buffered metrics and third party reporters

gocraft/health

Instrument your web apps with logging and metrics

openzipkin-contrib/zipkin-go-opentracing

OpenTracing Bridge for Zipkin Go

Security

1.4k

unrolled/secure

HTTP middleware for Go that facilitates some quick security wins.

awnumar/memguard

Secure software enclave for storage of sensitive information in memory.

caddyserver/certmagic

Automatic HTTPS for any Go program: fully-managed TLS certificate issuance and renewal

alexedwards/argon2id

Argon2id password hashing and verification for Go

nbutton23/zxcvbn-go

zxcvbn password complexity algorithm in golang

gin-gonic/autotls

Support Let's Encrypt for a Go server application.

muesli/crunchy

Finds common flaws in passwords. Like cracklib, but written in Go.

elithrar/simple-scrypt

A convenience library for generating, comparing and inspecting password hashes using the scrypt KDF in Go 🔑

wagslane/go-password-validator

Validate the Strength of a Password in Go

glycerine/sshego

golang/Go library for ssh tunneling (secure port forwarding)

System Programming

993

cilium/ebpf

ebpf-go is a pure-Go library to read, modify and load eBPF programs and attach them to various hooks in the Linux kernel.

hpcloud/tail

Go package for reading from continously updated files (tail -f)

tarm/serial

containerd/cgroups

cgroups package for Go

sevlyar/go-daemon

A library for writing system daemons in golang.

mitchellh/go-ps

Find, list, and inspect processes from Go (golang).

creack/pty

PTY interface for Go

edsrzf/mmap-go

A portable mmap package for Go

klauspost/cpuid

CPU feature identification for Go

jaypipes/ghw

Go HardWare discovery/inspection library

Template Engines

797

valyala/quicktemplate

Fast, powerful, yet easy to use template engine for Go. Optimized for speed, zero memory allocations in hot paths. Up to 20x faster than html/template

unrolled/render

Go package for easily rendering JSON, XML, binary data, and HTML templates responses.

flosch/pongo2

Django-syntax like template-engine for Go

gomarkdown/markdown

markdown parser and HTML renderer for Go

valyala/fasttemplate

Simple and fast template engine for Go

aymerick/raymond

Handlebars for golang

yosssi/ace

HTML template engine for Go

jaytaylor/html2text

Golang HTML to plaintext conversion library

eknkc/amber

Amber is an elegant templating engine for Go Programming Language, inspired from HAML and Jade

hoisie/mustache

The mustache template language in Go

Testing

2.7k

onsi/gomega

Ginkgo's Preferred Matcher Library

ory/dockertest

Write better integration tests! Dockertest helps you boot up ephermal docker images for your Go tests with minimal work.

google/gofuzz

Fuzz testing for go.

brianvoe/gofakeit

Random fake data generator written in go

jarcoal/httpmock

HTTP mocking for Golang

sanity-io/litter

Litter is a pretty printer library for Go data structures to aid in debugging and testing.

jonboulle/clockwork

a fake clock for golang

benbjohnson/clock

Clock is a small library for mocking time in Go.

go.uber.org/goleak

Goroutine leak detector

gavv/httpexpect

End-to-end HTTP and REST API testing for Go.

Text Processing

1.5k

Processing and formatting text

dustin/go-humanize

Go Humans! (formatters for units to human friendly sizes)

gosimple/slug

URL-friendly slugify with multiple languages support.

iancoleman/strcase

A golang package for converting to snake_case or CamelCase

gobwas/glob

Go glob

huandu/xstrings

Implements string functions widely used in other languages but absent in Go.

dlclark/regexp2

A full-featured regex engine in pure Go based on the .NET engine

mvdan/xurls

Extract urls from text

go-ego/gse

Go efficient multilingual NLP and text segmentation; support English, Chinese, Japanese and others.

mvdan.cc/xurls/v2

Extract urls from text

mozillazg/go-pinyin

汉字转拼音

TUI

989

TUI and advanced CLI UI

fatih/color

Color package for Go (golang)

olekukonko/tablewriter

ASCII table in golang

rivo/tview

Terminal UI library with rich, interactive widgets — written in Golang

cheggaaa/pb

Console progress bar for Golang

gdamore/tcell

Tcell is an alternate terminal package, similar in some ways to termbox, but better in others.

nsf/termbox-go

Pure Go termbox implementation

briandowns/spinner

Go (golang) package with 90 configurable terminal spinner/progress indicators.

gookit/color

🎨 Terminal color rendering library, support 8/16 colors, 256 colors, RGB color rendering output, support Print/Sprintf methods, compatible with Windows. GO CLI 控制台颜色渲染工具库，支持16色，256色，RGB色彩渲染输出，使用类似于 Print/Sprintf，兼容并支持 Windows 环境的色彩渲染

logrusorgru/aurora

Golang ultimate ANSI-colors that supports Printf/Sprintf methods

gosuri/uiprogress

A go library to render progress bars in terminal applications

Uncategorized

60.6k

robertkrimen/otto

A JavaScript interpreter in Go (golang)

hashicorp/go-plugin

Golang plugin system over RPC.

chromedp/chromedp

A faster, simpler way to drive browsers supporting the Chrome DevTools Protocol.

dop251/goja

ECMAScript/JavaScript engine in pure Go

olivere/elastic

Deprecated: Use the official Elasticsearch client for Go at https://github.com/elastic/go-elasticsearch

go-telegram-bot-api/telegram-bot-api

Golang bindings for the Telegram Bot API

tidwall/gjson

Get JSON values quickly - JSON parser for Go

swaggo/swag

Automatically generate RESTful API documentation with Swagger 2.0 for Go.

graphql-go/graphql

An implementation of GraphQL for Go / Golang

google/wire

Compile-time Dependency Injection for Go

Validation

396

go-playground/validator

:100:Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving

asaskevich/govalidator

[Go] Package of validators and sanitizers for strings, numerics, slices and structs

nyaruka/phonenumbers

GoLang port of Google's libphonenumber library

mwitkow/go-proto-validators

Generate message validators from .proto annotations.

gookit/validate

⚔ Go package for data validation and filtering. support Map, Struct, Form data. Go通用的数据验证与过滤库，使用简单，内置大部分常用验证、过滤器，支持自定义验证器、自定义消息、字段翻译。

badoux/checkmail

Golang package for email validation

thedevsaddam/govalidator

Validate Golang request data with simple rules. Highly inspired by Laravel's request validation.

ttacon/libphonenumber

golang port of Google's libphonenumber

qri-io/jsonschema

golang implementation of https://json-schema.org drafts 7 & 2019-09

bytedance/go-tagexpr

An interesting go struct tag expression syntax for field validation, etc.

Version Control

1.5k

Git, Mercurial and so on

gogs/git-module

Package git-module is a Go module for Git access through shell commands

sosedoff/gitkit

Git toolkit for Go: Smart HTTP server, SSH server, hook receiver

whilp/git-urls

git-urls parses git URLs

ipfs/go-ipld-git

ipld handlers for git objects

src-d/borges

borges collects and stores Git repositories.

git-chglog/git-chglog

CHANGELOG generator implemented in Go (Golang).

go-git/go-git

A highly extensible Git implementation in pure Go.

git-lfs/gitobj

gitobj reads and writes Git objects.

hairyhenderson/go-codeowners

A Go package that finds and parses GitHub CODEOWNERS files

bep/gitmap

A fast way to create a map from all the filenames to info objects for a given revision of a Git repo.

Video

700

Video and subtitles

grafov/m3u8

Parser and generator of M3U8-playlists for Apple HLS. Library for Go language. :cinema:

asticode/go-astits

Demux and mux MPEG Transport Streams (.ts) natively in GO

u2takey/ffmpeg-go

golang binding for ffmpeg

rylio/ytdl

YouTube download library and CLI written in Go

asticode/go-astisub

Manipulate subtitles in GO (.srt, .ssa/.ass, .stl, .ttml, .vtt (webvtt), teletext, etc.)

blackjack/webcam

Golang webcam library for Linux

pion/mediadevices

Go implementation of the MediaDevices API.

3d0c/gmf

Go Media Framework

cyruzin/golang-tmdb

This is a Golang wrapper for working with TMDb API. It aims to support version 3.

asticode/go-astiav

Golang ffmpeg and libav C bindings

WebAssembly

207

vugu/vugu

Vugu: A modern UI library for Go+WebAssembly (experimental)

tetratelabs/wazero

wazero: the zero dependency WebAssembly runtime for Go developers

bytecodealliance/wasmtime-go

Go WebAssembly runtime powered by Wasmtime

wapc/wapc-go

Golang-based WebAssembly Host Runtime for waPC-compliant modules

extism/go-pdk

Extism Plug-in Development Kit (PDK) for Go

dennwc/dom

DOM library for Go and WASM

wapc/wapc-guest-tinygo

SDK for creating waPC WebAssembly Guest Modules in TinyGo

wasilibs/nottinygc

Higher-performance allocator for TinyGo WASI apps

marwan.io/wasm-fetch

Web Assembly fetch wrapper that avoids importing net/http.

norunners/vert

WebAssembly interop between Go and JS values.