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

A lightweight, fast and extensible game server for Minecraft

OpenToonz - An open-source full-featured 2D animation creation software

AlaSQL.js - JavaScript SQL database for browser and Node.js. Handles both traditional relational tables and nested JSON data (NoSQL). Export, store, and import data from localStorage, IndexedDB, or Excel.

Javascript Canvas Library, SVG-to-Canvas (& canvas-to-SVG) Parser

React components that implement Google's Material Design.

React components that implement Google's Material Design.

A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows to load parts for the application on demand. Through "loaders," modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ...

A cross-platform, GPU-accelerated terminal emulator

Provides PowerShell language and debugging support for Visual Studio Code

Meteor, the JavaScript App Platform

The ultimate vim distribution

Parse, validate, manipulate, and display dates in javascript.

The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

Catch CSS curve balls.

A custom launcher for Minecraft that allows you to easily manage multiple installations of Minecraft at once

A linter for prose.

Simple, Pythonic remote execution and deployment.

The DokuWiki Open Source Wiki Engine

Recurrent donations platform

A highly scalable real-time graphing system

Framework for quickly creating connected applications in Kotlin with minimal effort

A reactive programming library for JavaScript

A tool to automatically fix PHP coding standards issues

🐺 Turn Based Strategy Game. Master your beasts!

Simple collaboration from your desktop

PLEASE READ THE PROJECT STATUS BELOW. Native AngularJS (Angular) directives for Bootstrap. Smaller footprint (20kB gzipped), no 3rd party JS dependencies (jQuery, bootstrap JS) required. Please read the README.md file before submitting an issue!

PowerMock is a Java framework that allows you to unit test code normally regarded as untestable.

A habit tracker app which treats your goals like a Role Playing Game.

Source code of open-source Colobot: Gold Edition project developed by Epsitec and TerranovaTeam

Etherpad: Really real-time collaborative document editing

A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure.

The Ember.js command line utility

Swagger 2.0 implementation for go

Compass is no longer actively maintained. Compass is a Stylesheet Authoring Environment that makes your website design simpler to implement and easier to maintain.

Visual Studio Code

The Kubernetes Package Manager

Distributed Task Queue (development branch)

An extensible media player for Android

Storage Orchestration for Kubernetes

AWS SDK for Python

Multi-user server for Jupyter notebooks

Guice (pronounced 'juice') is a lightweight dependency injection framework for Java 6 and above, brought to you by Google.

🖖 A progressive, incrementally-adoptable JavaScript framework for building UI on the web.

A full-featured browser reference implementation using Mozilla Android Components.

Postgresql JDBC Driver

Cake (C# Make) is a cross platform build automation system.

LaTeX plugin for Sublime Text 2 and 3

Simple, powerful online communities.

Asset Management for PHP

A tool to enforce Swift style and conventions.