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

The .NET Compiler Platform ("Roslyn") provides open-source C# and Visual Basic compilers with rich code analysis APIs.

Production-Grade Container Scheduling and Management

Ansible is a radically simple IT automation platform that makes your applications and systems easier to deploy. Avoid writing scripts or custom code to deploy and update your applications— automate in a language that approaches plain English, using SSH, w

Moby Project - a collaborative project for the container ecosystem to assemble container-based systems

Moby Project - a collaborative project for the container ecosystem to assemble container-based systems

Nix Packages collection

:bar_chart: Kibana analytics and search dashboard for Elasticsearch

Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more

Godot Engine – Multi-platform 2D and 3D game engine

The Julia Language: A fresh approach to technical computing.

蓝灯(Lantern)官方论坛

The Servo Browser Engine

Notepad++ official repository

Statsmodels: statistical modeling and econometrics in Python

Redis is an in-memory database that persists on disk. The data model is key-value, but many different kind of values are supported: Strings, Lists, Sets, Sorted Sets, Hashes, HyperLogLogs, Bitmaps.

This repo contains the .NET Core runtime, called CoreCLR, and the base library, called System.Private.Corelib (or mscorlib). It includes the garbage collector, JIT compiler, base .NET data types and many low-level classes. We welcome contributions.

Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more

Visual Studio Code

Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Linux, *BSD and Mac OS X.

Computation using data flow graphs for scalable machine learning

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

Emscripten: An LLVM-to-JavaScript Compiler

An open-source distributed JSON document database with a pleasant and powerful query language.

matplotlib: plotting with Python

Odoo. Open Source Apps To Grow Your Business.

Cocos2d-x is a suite of open-source, cross-platform, game-development tools used by millions of developers all over the world.

A community-driven Emacs distribution - The best editor is neither Emacs nor Vim, it's Emacs *and* Vim!

This repo contains the .NET Core foundational libraries, called CoreFX. It includes classes for collections, file systems, console, XML, async and many others. We welcome contributions.

A place to report bugs on websites.

Ruby on Rails

Command-line program to download videos from YouTube.com and other video sites

Official upstream development repository for Cabal and cabal-install

Official repository for IPython itself. Other repos in the IPython organization contain things like the website, documentation builds, etc.

A delightful community-driven (with 1,000+ contributors) framework for managing your zsh configuration. Includes 200+ optional plugins (rails, git, OSX, hub, capistrano, brew, ant, php, python, etc), over 140 themes to spice up your morning, and an auto-u

Yoast SEO for WordPress