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

A Django content management system focused on flexibility and user experience

Microsoft Azure SDK for JavaScript (NodeJS & Browser)

Universal markup converter

Open source platform for the machine learning lifecycle

A React framework for building text editors.

N-D labeled arrays and datasets in Python

Parallel computing with task scheduling

Build highly concurrent, distributed, and resilient message-driven applications on the JVM

Serverless Framework – Build web, mobile and IoT applications with serverless architectures using AWS Lambda, Azure Functions, Google CloudFunctions & more! –

Open Source, Distributed, RESTful Search Engine

An experimental Rust compiler front-end for IDEs

Electrum; Bitcoin thin client

The Ethereum Improvement Proposal repository

Space exploration, trading, and combat game.

Free (libre) font editor for Windows, Mac OS X and GNU+Linux

turn natural language into structured data

💬 Open source machine learning framework to automate text- and voice-based conversations: NLU, dialogue management, connect to Slack, Facebook, and more - Create chatbots and voice assistants

The React documentation website

Consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure.

Simple management UI for Docker

Bears for coala

API-aware Networking and Security using eBPF and XDP

A Python to C compiler

Main repository for the Sphinx documentation builder

unix-like reverse engineering framework and commandline tools

vis.js is a dynamic, browser-based visualization library

Web Experience Toolkit (WET): Open source code library for building innovative websites that are accessible, usable, interoperable, mobile-friendly and multilingual. This collaborative open source project is led by the Government of Canada.

Chocolatey CLI

The leading native Python SSHv2 protocol library.

Scrapy, a fast high-level web crawling & scraping framework for Python.

Image Processing SciKit (Toolbox for SciPy)

A generic system to build and distribute packages from sources in an automatic, consistent and reproducible way. Release your software for a wide range of operating systems and hardware architectures.

One framework for creating powerful cross-platform games.

Research platform for new language concepts and compiler technologies for Scala.

Dubbo is a high-performance, java based, open source RPC framework

Apache Dubbo is a high-performance, java based, open source RPC framework.

Google core libraries for Java

The pytest framework makes it easy to write small tests, yet scales to support complex functional testing

Magic Another Game Engine

Highcharts JS, the JavaScript charting framework

Simple, modern & fast web-based email client

WordPress for iOS - Official repository

The Symfony PHP framework

🎥 Command line video player

A private messenger for iOS.

RIOT - The friendly OS for IoT

BOSH release and development workspace for Concourse

Multi Theft Auto is a game engine that adds full network multiplayer functionality to Rockstar North's Grand Theft Auto game series, in which this functionality is not originally found.

A JavaScript checker and optimizer.