pkg.gl

Native Go version of HighwayHash with optimized assembly implementations on Intel and ARM. Able to process over 10 GB/sec on a single core on Intel CPUs - https://en.wikipedia.org/wiki/HighwayHash

minio/sha256-simd

Accelerate SHA256 computations in pure Go using AVX512, SHA Extensions for x86 and ARM64 for ARM. On AVX512 it provides an up to 8x improvement (over 3 GB/s per core). SHA Extensions give a performance boost of close to 4x over native.

keybase/saltpack

a modern crypto messaging format

gtank/cryptopasta

copy & paste-friendly golang crypto

99designs/keyring

Go library providing a uniform interface across a range of secure credential stores

alexedwards/argon2id

Argon2id password hashing and verification for Go

miekg/pkcs11

pkcs11 wrapper for Go

minio/sio

Go implementation of the Data At Rest Encryption (DARE) format.

Data Formats

584

jung-kurt/gofpdf

A PDF document generator with high level support for text, drawing and images

signintech/gopdf

A simple library for generating PDF written in Go lang

ledongthuc/pdf

PDF reader

gen2brain/go-fitz

Golang wrapper for the MuPDF Fitz library

extrame/xls

Pure Golang xls library

go-pdf/fpdf

A PDF document generator with high level support for text, drawing and images

phpdave11/gofpdf

A PDF document generator with high level support for text, drawing and images

bmaupin/go-epub

Go library for creating EPUB files

phpdave11/gofpdi

Go Free PDF Document Importer

nguyenthenguyen/docx

Simple Google Go (Golang) library for replacing text in Microsoft Word (.docx) file

Database Implementations

3.7k

boltdb/bolt

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

go.etcd.io/bbolt

An embedded key/value database for Go.

hashicorp/go-memdb

Golang in-memory database built on immutable radix trees

tidwall/buntdb

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

globalsign/mgo

The MongoDB driver for Go

influxdata/kapacitor

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

cockroachdb/pebble

RocksDB/LevelDB inspired key-value database in Go

tecbot/gorocksdb

gorocksdb is a Go wrapper for RocksDB

Database Interface

jmoiron/sqlx

general purpose extensions to golang's database/sql

lib/pq

Pure Go Postgres driver for database/sql

mattn/go-sqlite3

sqlite3 driver for go using database/sql

go-sql-driver/mysql

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

go-pg/pg

Golang ORM with focus on PostgreSQL features and performance

rubenv/sql-migrate

SQL schema migration tool for Go.

denisenkom/go-mssqldb

Microsoft SQL server driver written in go language

guregu/null

reasonable handling of nullable values

pingcap/parser

A MySQL Compatible SQL Parser

mattes/migrate

Database migrations. CLI and Golang library.

Date and Time

779

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)

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

olebedev/when

A natural language date/time parser with pluggable rules

arran4/golang-ical

A ICS / ICal parser and serialiser for Golang.

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

Dependency injection frameworks

290

google/wire

Compile-time Dependency Injection for Go

go.uber.org/fx

A dependency injection based application framework for Go.

go.uber.org/dig

A reflection based dependency injection toolkit for Go.

codegangsta/inject

Dependency injection for go

flamingo.me/dingo

Go Dependency Injection Framework

hashicorp/go-argmapper

A runtime dependency-injection library for Go that supports automatically chaining conversion functions to reach desired input and output types.

goioc/di

Simple and yet powerful Dependency Injection for Go

go-kod/kod

A generics based dependency injection application framework for Go, supporting aspect oriented programming based on interceptors

logrange/linker

Dependency Injection and Inversion of Control package

insolar/component-manager

component framework and dependency injection for golang

DevOps, CI and CD

gaia-pipeline/gaia

Build powerful pipelines in any programming language.

concourse/concourse

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

drone/autoscaler

Automatically adds or removes instances based on build volume

travis-ci/worker

Worker runs your Travis CI jobs

go.mondoo.com/cnquery

open source, cloud-native, graph-based asset inventory

pressly/sup

Super simple deployment tool - think of it like 'make' for a network of servers

buildpacks/pack

CLI for building apps using Cloud Native Buildpacks

remind101/conveyor

A fast build system for Docker images.

pachyderm/pachyderm

Data-Centric Pipelines and Data Versioning

hashicorp/waypoint-plugin-sdk

Waypoint Plugin SDK enables building plugins for Waypoint: builders, deployment platforms, release managers, and more.

Email

935

jordan-wright/email

Robust and flexible email library for Go

emersion/go-imap

📥 An IMAP library for clients and servers

sendgrid/sendgrid-go

The Official Twilio SendGrid Golang API Library

emersion/go-smtp

📤 An SMTP client & server library written in Go

go-gomail/gomail

The best way to send emails in Go.

badoux/checkmail

Golang package for email validation

flashmob/go-guerrilla

Mini SMTP server written in golang

jhillyerd/enmime

MIME mail encoding and decoding package for Go

emersion/go-message

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

go-mail/mail

Fork of gomail.

Embeddable Scripting Languages

993

Embeddable scripting languages and virtual machines

robertkrimen/otto

A JavaScript interpreter in Go (golang)

yuin/gopher-lua

GopherLua: VM and compiler for Lua in Go

bitfield/script

Making it easy to write shell-like scripts in Go

hashicorp/hil

HIL is a small embedded language for string interpolations.

layeh.com/gopher-luar

simplifies data passing to and from gopher-lua

thomaspoignant/go-feature-flag

GO Feature Flag is a simple, complete and lightweight self-hosted feature flag solution 100% Open Source. 🎛️

milochristiansen/lua

A Lua 5.3 VM and compiler written in Go.

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

1.7k

mitchellh/mapstructure

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

mailru/easyjson

Fast JSON serializer for golang.

fatih/structs

Utilities for Go structs

buger/jsonparser

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

json-iterator/go

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

gocarina/gocsv

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

valyala/fastjson

Fast JSON parser and validator for Go. No custom structs, no code generation, no reflection

ghodss/yaml

A better way to marshal and unmarshal YAML in Golang

francoispqt/gojay

high performance JSON encoder/decoder with stream API for Golang

goccy/go-yaml

YAML support for the Go language

Error Handling

987

hashicorp/go-multierror

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

pkg/errors

Simple error handling primitives

cockroachdb/errors

Go error library with error portability over the network

go-errors/errors

errors with stacktraces for go

joomcode/errorx

A comprehensive error handling library for Go

juju/errors

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

rotisserie/eris

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

go.uber.org/multierr

Combine one or more Go errors together

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

1.3k

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.

radovskyb/watcher

watcher is a Go package for watching for files or directory changes without using filesystem events.

karrick/godirwalk

Fast directory traversal for Golang

otiai10/copy

Go copy directory recursively

blang/vfs

Virtual filesystem library written in golang

Finance

1.6k

shopspring/decimal

Arbitrary-precision fixed-point decimal numbers in Go

cockroachdb/apd

Arbitrary-precision decimals for Go

quickfixgo/quickfix

The Go FIX Protocol Library :rocket:

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.

piquette/finance-go

:bar_chart: Financial markets data library implemented in go.

markcheno/go-talib

A pure Go port of TA-Lib (http://ta-lib.org)

sdcoffey/techan

Technical Analysis Library for Golang

bojanz/currency

Currency handling for Go.

Game Development

2.1k

Game development tools, simulators and games

hajimehoshi/ebiten

Ebitengine - A dead simple 2D game engine for Go

faiface/pixel

A hand-crafted 2D game library in Go

markus-wa/demoinfocs-golang

A Counter-Strike 2 Demo Parser for Go (demoinfo)

topfreegames/pitaya

Scalable game server framework with clustering support and client libraries for iOS, Android, Unity and others through the C SDK.

notnil/chess

chess package for go

jakecoffman/cp

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

lonng/nano

Lightweight, facility, high performance golang based game server framework

xiaonanln/goworld

Scalable Distributed Game Server Engine with Hot Swapping in Golang

beefsack/go-astar

Go implementation of the A* search algorithm

cherry-game/cherry

Actor model game server framework based on golang

Geography

672

paulmach/orb

Types and utilities for working with 2d geometry in Golang

twpayne/go-geom

Package geom implements efficient geometry types for geospatial applications.

go-spatial/tegola

Tegola is a Mapbox Vector Tile server written in Go

googlemaps.github.io/maps

Go client library for Google Maps API Web Services

kellydunn/golang-geo

Geographical calculations in Go.

mmcloughlin/geohash

Golang geohash library

codingsince1985/geo-golang

Go library to access geocoding and reverse geocoding APIs

paulmach/go.geojson

Encoding and decoding GeoJSON <-> Go

dhconnelly/rtreego

an R-Tree library for Go

paulmach/osm

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

GUI

425

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

asticode/go-astilectron

Build cross platform GUI apps with GO and HTML/JS/CSS (powered by Electron)

sciter-sdk/go-sciter

Golang bindings of Sciter: the Embeddable HTML/CSS/script engine for modern UI development

adrg/xdg

Go implementation of the XDG Base Directory Specification and XDG user directories

andlabs/ui

Platform-native GUI library for Go.

wailsapp/wails

Create beautiful applications using Go

sqweek/dialog

Simple cross-platform dialog API for go-lang

ncruces/zenity

Zenity dialogs for Golang, Windows, macOS

Hardware

1.8k

Interfacing with hardware and other embedded development

hybridgroup/gobot

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

jaypipes/ghw

Go HardWare discovery/inspection library

goburrow/modbus

Fault-tolerant implementation of modbus protocol in Go (golang)

kidoman/embd

Embedded Programming Framework in Go

paypal/gatt

Gatt is a Go package for building Bluetooth Low Energy peripherals

tinygo.org/x/bluetooth

Cross-platform Bluetooth API for Go and TinyGo. Supports Linux, macOS, Windows, and bare metal using Nordic SoftDevice or HCI

edgexfoundry/edgex-go

EdgeX Golang Services Monorepo | Owner: Core/Support WG

gokrazy/gokrazy

turn your Go program(s) into an appliance running on the Raspberry Pi 3, Pi 4, Pi 5, Pi Zero 2 W, or PCs (x86_64 or ARM64)!

brutella/hc

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

go-ble/ble

Bluetooth Low Energy for Linux / macOS

HTTP clients

1.6k

chromedp/chromedp

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

elazarl/goproxy

An HTTP proxy library for Go

parnurzeal/gorequest

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

hashicorp/go-retryablehttp

Retryable HTTP client in Go

imroc/req

Simple Go HTTP client with Black Magic

hashicorp/go-getter

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

levigross/grequests

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

tebeka/selenium

Selenium/Webdriver client for Go

dghubble/sling

A Go HTTP client library for creating and sending API requests

antchfx/htmlquery

htmlquery is golang XPath package for HTML query.

HTTP framework

3.6k

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.

labstack/echo

High performance, minimalist Go web framework

valyala/fasthttp

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

gorilla/mux

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

julienschmidt/httprouter

A high performance HTTP request router that scales well

go-chi/chi

lightweight, idiomatic and composable router for building Go HTTP services

micro/go-micro

A Go microservices framework

emicklei/go-restful

package for building REST-style Web Services using Go

go-martini/martini

Classy web framework for Go

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.

HTTP middleware

858

swaggo/swag

Automatically generate RESTful API documentation with Swagger 2.0 for Go.

rs/cors

Go net/http configurable handler to handle CORS requests

swaggo/gin-swagger

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

gin-contrib/cors

Official CORS gin's middleware

justinas/nosurf

CSRF protection middleware for Go.

gin-contrib/sessions

Gin middleware for session management

justinas/alice

Painless middleware chaining for Go

didip/tollbooth

Simple middleware to rate-limit HTTP requests.

gorilla/handlers

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

gorilla/csrf

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

Identifiers

476

satori/go.uuid

UUID package for Go

google/uuid

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

segmentio/ksuid

K-Sortable Globally Unique IDs

rs/xid

xid is a globally unique id generator thought for the web

bwmarrin/snowflake

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

gofrs/uuid

A UUID package for Go

sony/sonyflake

A distributed unique ID generator inspired by Twitter's Snowflake

matoous/go-nanoid

Golang random IDs generator.

teris-io/shortid

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

denisbrodbeck/machineid

Get the unique machine id of any host (without admin privileges)

Kubernetes

5.5k

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/kops

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

k8s.io/code-generator

Generators for kube-like API types

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.

rook/operator-kit

A library for creating a Kubernetes Operator

fluid-cloudnative/fluid

Fluid, elastic data abstraction and acceleration for BigData/AI applications in cloud. (Project under CNCF)

atlassian/smith

Smith is a Kubernetes workflow engine / resource manager

topolvm/topolvm

Capacity-aware CSI plugin for Kubernetes

Load Testing

377

myzhan/boomer

A better load generator for locust, written in golang.

pinterest/bender

An easy-to-use library for creating load testing applications

mrichman/hargo

Hargo is a Go library and command line utility that parses HAR files, can convert to curl format, and serve as a load test driver.

lesovsky/noisia

Harmful workload generator for PostgreSQL

emicklei/hazana

package to build load tests for services (http, gRPC, tcp) by implementing an Attacker

tylertreat/bench

A generic latency benchmarking library.

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).

square/finch

MySQL Benchmarking: Declarative, Distributed, and Amazing

rakyll/hey

HTTP load generator, ApacheBench (ab) replacement

Logging

sirupsen/logrus

Structured, pluggable logging for Go.

rs/zerolog

Zero Allocation JSON Logger

go.uber.org/zap

Blazing fast, structured, leveled logging in Go.

golang/glog

Leveled execution logs for Go

uber-go/zap

Blazing fast, structured, leveled logging in Go.

natefinch/lumberjack

lumberjack is a log rolling package for Go

op/go-logging

Golang logging library

cihub/seelog

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

apex/log

Structured logging package for Go.

go-logr/logr

A simple logging interface for Go

Machine Learning

423

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.

grailbio/reflow

A language and runtime for distributed, incremental data processing in the cloud

jbrukh/bayesian

Naive Bayesian Classification for Golang.

gonum/matrix

Matrix packages for the Go language [DEPRECATED]

sajari/regression

Multivariable regression library in Go

scipipe/scipipe

Robust, flexible and resource-efficient pipelines using Go and the commandline

gonum/stat

Statistics package for Go [DEPRECATED]

sugarme/gotch

Go binding for Pytorch C++ API (libtorch)

patrikeh/go-deep

Artificial Neural Network

Messaging

2.7k

streadway/amqp

Go client for AMQP 0.9.1

nats-io/nats.go

Golang client for NATS, the cloud native messaging system.

nsqio/go-nsq

The official Go package for NSQ

pebbe/zmq4

A Go interface to ZeroMQ version 4

bsm/sarama-cluster

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

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.

gen2brain/beeep

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

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.

containrrr/shoutrrr

Notification library for gophers and their furry friends.

Network Programming

5.4k

miekg/dns

DNS library in Go

google/gopacket

Provides packet processing capabilities for Go

libp2p/go-libp2p

libp2p implementation in Go

vishvananda/netlink

Simple netlink library for go.

gobwas/ws

Tiny WebSocket library for Go.

hashicorp/yamux

Golang connection multiplexing library

pkg/sftp

SFTP support for the go.crypto/ssh package

anacrolix/torrent

Full-featured BitTorrent client package and utilities

googollee/go-socket.io

socket.io library for golang, a realtime application framework.

v2ray.com/core

A platform for building proxies to bypass network restrictions.

Observability

873

opentracing/opentracing-go

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

rcrowley/go-metrics

Go port of Coda Hale's Metrics library

pkg/profile

Simple profiling for Go

uber-go/tally

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

newrelic/go-agent

New Relic Go Agent

gin-contrib/pprof

gin pprof middleware

openzipkin/zipkin-go

Zipkin distributed tracing library for go.

felixge/fgprof

🚀 fgprof is a sampling Go profiler that allows you to analyze On-CPU as well as Off-CPU (e.g. I/O) time together.

openzipkin-contrib/zipkin-go-opentracing

OpenTracing Bridge for Zipkin Go

go.opentelemetry.io/contrib

Collection of extensions for OpenTelemetry-Go.

RPC frameworks

hashicorp/go-plugin

Golang plugin system over RPC.

fullstorydev/grpcurl

Like cURL, but for gRPC: Command-line tool for interacting with gRPC servers

grpc-ecosystem/go-grpc-prometheus

Prometheus monitoring for your gRPC Go servers.

nats-io/stan.go

NATS Streaming System

containerd/ttrpc

GRPC for low-memory environments

storj.io/drpc

drpc is a lightweight, drop-in replacement for gRPC

gorilla/rpc

Package gorilla/rpc is a golang foundation for RPC over HTTP services.

go.uber.org/yarpc

A message passing platform for Go

natefinch/pie

a toolkit for creating plugins for Go applications

sourcegraph/jsonrpc2

Package jsonrpc2 provides a client and server implementation of JSON-RPC 2.0 (http://www.jsonrpc.org/specification)

Security

1.7k

caddyserver/caddy

Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS

caddyserver/certmagic

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

howeyc/gopass

getpasswd for Go

nbutton23/zxcvbn-go

zxcvbn password complexity algorithm in golang

gin-gonic/autotls

Support Let's Encrypt for a Go server application.

rsc/letsencrypt

Manage TLS certificates automatically via LetsEncrypt.org

projectdiscovery/cdncheck

A utility to detect various technology for a given IP address.

muesli/crunchy

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

johanbrandhorst/certify

Automatic client and server certificate distribution and maintenance

google/safebrowsing

Safe Browsing API Go Client

System Programming

656

kardianos/service

Run go programs as a service on major platforms.

tarm/serial

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.

sevlyar/go-daemon

A library for writing system daemons in golang.

go-ole/go-ole

win32 ole implementation for golang

prometheus/procfs

procfs provides functions to retrieve system, kernel and process metrics from the pseudo-filesystem proc.

mitchellh/go-ps

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

Microsoft/go-winio

Win32 IO-related utilities for Go

edsrzf/mmap-go

A portable mmap package for Go

google/gousb

gousb provides low-level interface for accessing USB devices

Template Engines

1.3k

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.

gobuffalo/plush

The powerful template system that Go needs

valyala/fasttemplate

Simple and fast template engine for Go

yosssi/ace

HTML template engine for Go

aymerick/raymond

Handlebars for golang

cbroglie/mustache

The mustache template language in Go

eknkc/amber

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

maragu.dev/gomponents

HTML components in pure Go.

a-h/templ

A language for writing HTML user interfaces in Go.

Testing

2.6k

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.

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.

brianvoe/gofakeit

Random fake data generator written in go

google/gofuzz

Fuzz testing for go.

pingcap/failpoint

An implementation of failpoints for Golang.

benbjohnson/clock

Clock is a small library for mocking time in Go.

cucumber/godog

Cucumber for golang

gavv/httpexpect

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

Text Processing

1.8k

Processing and formatting text

dustin/go-humanize

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

kr/pretty

Pretty printing for Go values

gosimple/slug

URL-friendly slugify with multiple languages support.

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

sahilm/fuzzy

Go library that provides fuzzy string matching optimized for filenames and code symbols in the style of Sublime Text, VSCode, IntelliJ IDEA et al.

mvdan.cc/xurls/v2

Extract urls from text

iancoleman/strcase

A golang package for converting to snake_case or CamelCase

go-ego/gse

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

TUI

899

TUI and advanced CLI UI

fatih/color

Color package for Go (golang)

gizak/termui

Golang terminal dashboard

rivo/tview

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

olekukonko/tablewriter

ASCII table in golang

jroimartin/gocui

Minimalist Go package aimed at creating Console User Interfaces.

nsf/termbox-go

Pure Go termbox implementation

gdamore/tcell

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

cheggaaa/pb

Console progress bar for Golang

briandowns/spinner

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

logrusorgru/aurora

Golang ultimate ANSI-colors that supports Printf/Sprintf methods

Uncategorized

75.2k

gorilla/websocket

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

tidwall/gjson

Get JSON values quickly - JSON parser for Go

influxdata/telegraf

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

olivere/elastic

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

bwmarrin/discordgo

(Golang) Go bindings for Discord

dop251/goja

ECMAScript/JavaScript engine in pure Go

russross/blackfriday

Blackfriday: a markdown processor for Go

graphql-go/graphql

An implementation of GraphQL for Go / Golang

jinzhu/copier

Copier for golang, copy value from struct to struct and more

spf13/cast

safe and easy casting from one type to another in Go

Validation

470

asaskevich/govalidator

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

go-playground/validator

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

xeipuuv/gojsonschema

An implementation of JSON Schema, draft v4 v6 & v7 - Go language

mwitkow/go-proto-validators

Generate message validators from .proto annotations.

nyaruka/phonenumbers

GoLang port of Google's libphonenumber library

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。

thedevsaddam/govalidator

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

qri-io/jsonschema

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

ttacon/libphonenumber

golang port of Google's libphonenumber

go-openapi/validate

openapi toolkit validation helpers

Version Control

2.5k

Git, Mercurial and so on

gogs/go-gogs-client

Gogs API client in Go.

ktrysmt/go-bitbucket

Bitbucket API library for Golang.

gogs/git-module

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

src-d/gitbase

SQL interface to git repositories, written in Go. https://docs.sourced.tech/gitbase

andygrunwald/go-gerrit

Go client/library for Gerrit Code Review

git-duet/git-duet

Support for pairing with git

sosedoff/gitkit

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

creativeprojects/go-selfupdate

self update your applications in go

tcnksm/go-gitconfig

Use gitconfig values in Golang.

plouc/go-gitlab-client

A Go gitlab API client & powerful CLI written in Go

Video

875

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

asticode/go-astisub

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

rylio/ytdl

YouTube download library and CLI written in Go

blackjack/webcam

Golang webcam library for Linux

pion/mediadevices

Go implementation of the MediaDevices API.

abema/go-mp4

Go library for reading and writing MP4 file

3d0c/gmf

Go Media Framework

cyruzin/golang-tmdb

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

WebAssembly

259

rogchap.com/v8go

Execute JavaScript from Go

vugu/vugu

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

hexops/vecty

Vecty lets you build responsive and dynamic web frontends in Go using WebAssembly, competing with modern web frameworks like React & VueJS.

tetratelabs/wazero

wazero: the zero dependency WebAssembly runtime for Go developers

bytecodealliance/wasmtime-go

Go WebAssembly runtime powered by Wasmtime

honnef.co/go/js/dom

norunners/vue

The progressive framework for WebAssembly applications.

webview/webview_go

Go language bindings for the webview library.

wapc/wapc-go

Golang-based WebAssembly Host Runtime for waPC-compliant modules

syumai/workers

Go package to run an HTTP server on Cloudflare Workers.