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.

beego is an open-source, high-performance web framework for the Go programming language.

Curated list of Go design patterns, recipes and idioms

Goroutine leak detector

A library for creating generic graph data structures and modifying, analyzing, and visualizing them.

A Go-based static site generator that compiles brandur.org.

Pure Go implementation of Opus

Alternative Mumble server

piepan is an easy to use framework for writing Mumble bots using Lua

Cgo bindings to PulseAudio's Simple API, for easily playing or capturing raw audio.

Go bindings for the exiv2 library. Allows reading and writing EXIF/IPTC metadata to/from JPG, WEBP and PNG images.