Help out your favorite open source projects and become a better developer while doing it.

Event bus for Android and Java that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.

Vagrant is a tool for building and distributing development environments.

Code coverage for Ruby with a powerful configuration library and automatic merging of coverage across test suites

Software to automate the management and configuration of any infrastructure or application at scale. Get access to the Salt software package repository here:

JSHint is a tool that helps to detect errors and potential problems in your JavaScript code

🔮 An easy-to-use JavaScript unit testing framework.

Lean & powerful HTTP apps

A Git platform powered by Scala with easy installation, high extensibility & GitHub API compatibility

Ruby: 2 CPUs = 2x Testing Speed for RSpec, Test::Unit and Cucumber

Statsmodels: statistical modeling and econometrics in Python

JavaScript Vector Library

Build SMS applications with Python

Extendable, adaptable rewrite of django.contrib.admin

Hi. I'm a starter theme called _s, or underscores, if you like. I'm a theme meant for hacking so don't use me as a Parent Theme. Instead try turning me into the next, most awesome, WordPress theme out there. That's what I'm here for.

CSS toolkit from Twitter for use as a WordPress theme

SciPy library main repository

AngularJS service to handle Rest API Restful Resources properly and easily

A RESTful Haskell web framework built on WAI.

A static website compiler library in Haskell

Quickly ramp up in new programming languages.

Pure Go Postgres driver for database/sql

Yoast SEO for WordPress

A serialization/deserialization/validation library for strings, mappings and lists.

Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed.

The future of Node.js REST development

A Really Ruby Mail Library

TrinityCore Open Source MMO Framework (master = 7.3.5.26124, 3.3.5 = 3.3.5a.12340)

Better Markdown Parser in PHP

JavaScript parser / mangler / compressor / beautifier library for NodeJS

Linux utility to configure modifier keys to act as other keys when pressed and released on their own.

C++ client for making HTTP/REST requests

Simple and Fast Multimedia Library

Free continuous integration platform for GitHub projects.

Emby Server is a personal media server with apps on just about every device.

The source code that powers readthedocs.org

Give your JS App some Backbone with Models, Views, Collections, and Events

JavaScript's utility _ belt

The platform for professional publishers

Social logging script for Day One

Manage perl installations in your $HOME

Classier solution for file uploads for Rails, Sinatra and other Ruby web frameworks

A Content Editor for GitHub.

A lightweight, fast and extensible game server for Minecraft

A modern JavaScript utility library delivering modularity, performance, & extras.

Compresses linked and inline javascript or CSS into a single cached file.

PHPCI is a free and open source continuous integration tool specifically designed for PHP.

Write C# apps with a text editor, nuget and the power of Roslyn!

Active Record, improved. Live again :)

Object-based searching.

🆔 The easy-to-use OpenStreetMap editor in JavaScript.