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

📑 Collabora Online for Nextcloud

Classic UI of ManageIQ

CUBRID is a comprehensive open source relational database management system highly optimized for Web Applications.

The participatory democracy framework. A generator and multiple gems made with Ruby on Rails.

Chemical kinetics, thermodynamics, and transport tool suite

FiPy is a Finite Volume PDE solver written in Python

Vulkan-based implementation of D3D9, D3D10 and D3D11 for Linux / Wine

Music Player Daemon

Contrib repository for the OpenTelemetry Collector

An enterprise-class UI design language and React UI library

Optional static typing for Python

A high performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar

PDF Reader in JavaScript

Heroku's Ruby Buildpack

Classy web-development dressed in a DSL (official / canonical repo)

A realtime distributed messaging platform

Cucumber for the JVM

:globe_with_meridians: Jekyll is a blog-aware static site generator in Ruby

Open Dylan compiler and IDE

Dependency Manager for PHP

Open Source Continuous File Synchronization

The modern web developer’s platform

The Go programming language

Collaborative forensic timeline analysis

High performance file syncing and sharing, with also Markdown WYSIWYG editing, Wiki, file label and other knowledge management features.

The Ember.js command line utility.

Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering.

A framework for building native apps with React.

Command Line Interface for Particle Cloud and devices

A 3D Mapping Engine & SDK for OpenSceneGraph.

The Swift Programming Language

Official upstream development repository for Cabal and cabal-install

🛒 Solidus, the open-source eCommerce framework for industry trailblazers.

Visual Studio Code

A free and open-source MMORPG server emulator written in C++

A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows to load parts for the application on demand. Through "loaders," modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ...

A node.js version management utility for Windows. Ironically written in Go.

:rocket:  A fully-featured, production ready caching GraphQL client for every UI framework and GraphQL server.

🗨️ Nextcloud Talk – chat, video & audio calls for Nextcloud

:zap: Activity app for Nextcloud

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

Concourse is a container-based continuous thing-doer written in Go.

Refactoring and linting tool for Scala

Kamailio - The Open Source SIP Server for large VoIP and real-time communication platforms -

HDF5 for Python -- The h5py package is a Pythonic interface to the HDF5 binary data format.

N-D labeled arrays and datasets in Python

One webpage for every book ever published!

YugaByteDB is a high-performance, transactional database for building distributed cloud services. It currently supports Redis API (as a true DB), Cassandra API and SQL is coming very soon.