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

The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio.

Ruby on Rails

A distributed task scheduler for Dask

The most widely used Python to C compiler

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

Audio Editor

Build Mobile, Desktop and WebAssembly apps with C# and XAML. Today. Open source and professionally supported.

📱 Nextcloud Android app

A new type of shell

Scala 2 bug reports only. Please, no questions — proper bug reports only.

Gazebo classic. For the latest version, see https://github.com/gazebosim/gz-sim

The host/runtime that powers Azure Functions

A tool for secrets management, encryption as a service, and privileged access management

Free and source-available fair-code licensed workflow automation tool. Easily automate tasks across different services.

The React documentation website

Prettier is an opinionated code formatter.

Eclipse Theia is a cloud & desktop IDE framework implemented in TypeScript.

Shopware 6 is an open commerce platform based on Symfony Framework and Vue and supported by a worldwide community and more than 1.500 community extensions

A post-modern modal text editor.

Astronomy and astrophysics core library

A library that provides an embeddable, persistent key-value store for fast storage.

An open source payments switch written in Rust to make payments fast, reliable and affordable

The Sphinx documentation generator

PowerShell for every system!

GirlScript Winter of Contributing is a three-month-long Open-Source Program organized by🧡GirlScript Foundation to create the world's largest multilingual content repository that will be available to everyone.

Outcome driven agent development framework that evolves

Cross-platform music production software

A lightweight Youtube frontend for Android.

Workflow Engine for Kubernetes

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

Scheduling infrastructure for absolutely everyone.

Friendica Communications Platform

SuiteCRM - Open source CRM for the world

Build smaller, faster, and more secure desktop applications with a web frontend.

Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.

An enterprise-class UI design language and React UI library

:tada: A magical vue admin http://panjiachen.github.io/vue-element-admin

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.

Convert HTML to PDF using Webkit (QtWebKit)

N-D labeled arrays and datasets in Python

Facebook AI Research Sequence-to-Sequence Toolkit written in Python.

Sentence Embeddings with BERT & XLNet

The open-source database for the realtime web.

CircuitVerse Primary Code Base

i3-compatible Wayland compositor

A keyboard-driven, vim-like browser based on PyQt5.

A keyboard-driven, vim-like browser based on PyQt5.

Network-wide ads & trackers blocking DNS server

Spring Security