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

Nix, the purely functional package manager

Interactive UI component dev & test: React, React Native, Vue, Angular

Official doxygen git repository

📓 The UI component explorer. Develop, document, & test for React, Vue, Angular, Ember, Web Components, & more!

Blazing fast, instant realtime GraphQL APIs on Postgres with fine grained access control, also trigger webhooks on database events.

Entity Framework Core is a lightweight and extensible version of the popular Entity Framework data access technology

Delightful JavaScript Testing.

Terraform Azure Resource Manager provider

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

Wazuh - The Open Source Security Platform

The official bug tracker for the Scala programming language.

The Crystal Programming Language

The Crystal Programming Language

A private messenger for Android.

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

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

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.

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

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

The Python programming language

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

Terraform is a tool for building, changing, and combining infrastructure safely and efficiently.

Traccar GPS Tracking System

Signal — Private Messenger for Windows, Mac, and Linux

Framework for server-rendered React apps

The React Framework

Ballerina is a compiled, transactional, statically and strongly typed programming language with textual and graphical syntaxes.

Official upstream development repository for Cabal and cabal-install

Bitcoin Core integration/staging tree

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.

ORM for TypeScript and JavaScript (ES7, ES6, ES5). Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, SAP Hana, WebSQL databases. Works in NodeJS, Browser, Ionic, Cordova and Electron platforms.