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

Unleash the power of Java - JBang Lets Students, Educators and Professional Developers create, edit and run self-contained source-only Java programs with unprecedented ease.

📇 Contacts app for Nextcloud

Meshtastic device firmware

🚀✨ Help beginners to contribute to open source projects

Command-line JSON processor

🚀 Yet another project to get beginners contributing to open source 🔰

Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows and macOS. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.

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

OSv, a new operating system for the cloud.

Ivy - a generic completion frontend for Emacs, Swiper - isearch with an overview, and more. Oh, man!

Creating delicious APIs for Django apps since 2010.

Enhancements tracking repo for Kubernetes

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

Application for managing recipes, planning meals, building shopping lists and much much more!

REST API for any Postgres database

Multi-Dimensional charting built to work natively with crossfilter rendered with d3.js

A powerful Flutter chart library, currently supporting Line Chart, Bar Chart, Pie Chart and Scatter Chart.

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

Typed interactions with the GitHub API v3

Typed interactions with the GitHub API v3

🐺 Turn Based Strategy Game. Master your beasts!

Perkeep (née Camlistore) is your personal storage system for life: a way of storing, syncing, sharing, modelling and backing up content.

Slick (Scala Language Integrated Connection Kit) is a modern database query and access library for Scala

Q&A-based community knowledge-sharing software

Google Cloud Client Libraries for Go.

:package::rocket: Fully automated version management and package publishing

Apache Flink

Autopsy® is a digital forensics platform and graphical interface to The Sleuth Kit® and other digital forensics tools. It can be used by law enforcement, military, and corporate examiners to investigate what happened on a computer. You can even use it to

The source code that powers readthedocs.org

JavaScript 3D library.

Traccar GPS Tracking System

Bitpay Wallet (formerly Copay) is a secure Bitcoin and other crypto currencies wallet platform for both desktop and mobile devices.

Official docs, website, and handbook for PostHog.

:lipstick: Universal beautification package for Atom editor

A Swift command line tool for generating your Xcode project

👩‍🎤 CSS-in-JS library designed for high performance style composition

Run your GitHub Actions locally 🚀

A toolkit with common assertions and mocks that plays nicely with the standard library

Balena Supervisor: balena's agent on devices.

Distributed reliable key-value store for the most critical data of a distributed system

Git Source Code Mirror - This is a publish-only repository but pull requests can be turned into patches to the mailing list via GitGitGadget (https://gitgitgadget.github.io/). Please follow Documentation/SubmittingPatches procedure for any of your improve

A modular Wayland compositor library

AI-powered job search system built on Claude Code. 14 skill modes, Go dashboard, PDF generation, batch processing.

Emacs Python Development Environment

Realm is a mobile database: a replacement for SQLite & ORMs

Provides PowerShell language and debugging support for Visual Studio Code

🥧 Savoury implementation of the QUIC transport protocol and HTTP/3

ZeroMQ core engine in C++, implements ZMTP/3.1

SimTK OpenSim C++ libraries and command-line applications, and Java/Python wrapping.