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

The Servo Browser Engine

An open source code editor for the web, written in JavaScript, HTML and CSS.

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

The https://freeCodeCamp.org open source codebase and curriculum. Learn to code and help nonprofits.

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

Production-Grade Container Scheduling and Management

Statsmodels: statistical modeling and econometrics in Python

📦🐈 Fast, reliable, and secure dependency management.

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

A place to report bugs on websites.

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.

Adaptable, fast automation for all

The JavaScript and API powered WordPress.com

Scalable datastore for metrics, events, and real-time analytics

Nim is a compiled, garbage-collected systems programming language with a design that focuses on efficiency, expressiveness, and elegance (in that order of priority).

Build cross platform desktop apps with JavaScript, HTML, and CSS

Algorithms that run our universe | Your personal library of every algorithm and data structure code that you will ever encounter

:cloud: ownCloud web server core (Files, DAV, etc.)

The tool for beautiful monitoring and metric analytics & dashboards for Graphite, InfluxDB & Prometheus & More

For the latest version of boto, see https://github.com/boto/boto3 -- Python interface to Amazon Web Services

Open Source, Distributed, RESTful Search Engine

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

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

Cataclysm - Dark Days Ahead. A turn-based survival game set in a post-apocalyptic world.

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

Jupyter Interactive Notebook

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

Yoast SEO for WordPress

One framework. Mobile & desktop.

Official upstream development repository for Cabal and cabal-install

unix-like reverse engineering framework and commandline tools

Odoo. Open Source Apps To Grow Your Business.

Computation using data flow graphs for scalable machine learning

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.

Dolibarr ERP CRM is a modern software package to manage your company or foundation activity (contacts, suppliers, invoices, orders, stocks, agenda, ...).It's opensource software (wrote with PHP language) designed for small and medium companies, foundation

SuiteCRM - Open source CRM for the world

Gitea: Git with a cup of tea

openFrameworks is a community-developed cross platform toolkit for creative coding in C++.

Zcash - Internet Money

OS-agnostic, system-level binary package manager and ecosystem

Zulip server - powerful open source team chat

Next generation Brave browser for macOS, Windows, Linux, and eventually Android

The Python programming language

Vim-fork focused on extensibility and usability

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

A PSP emulator for Android, Windows, Mac and Linux, written in C++. Want to contribute? Join us in #ppsspp on freenode (IRC) or just send pull requests / issues. For discussion use the forums on ppsspp.org.

Caffe: a fast open framework for deep learning.