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

Gitpod automates the provisioning of ready-to-code development environments.

H2 is an embeddable RDBMS written in Java.

Canonical actor model implementation for .NET with local + distributed actors in C# and F#.

Tantivy is a full-text search engine library inspired by Apache Lucene and written in Rust

A modern, maintained replacement for ls

a free (libre) open source, mobile OS for Ethereum

Redefined chart library built with React and D3

The best React-based framework with performance, scalability and security built in.

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

Topic Modelling for Humans

A Commander for modern Go CLI interactions

RPG Maker 2000/2003 and EasyRPG games interpreter

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

Angular powered Bootstrap

Skip YouTube video sponsors (browser extension)

Accessibility engine for automated Web UI testing

📇 Contacts app for Nextcloud

Google Cloud Client Libraries for Go.

:satellite: :cloud: :notes:Airsonic, a Free and Open Source community driven media server (fork of Subsonic and Libresonic)

Linear algebra library for Rust.

Apache OpenWhisk is an open source serverless cloud platform

The Swiss Army Knife of Vector Graphics Scripting – Scriptographer ported to JavaScript and the browser, using HTML5 Canvas. Created by @lehni & @puckey

The Kotlin Programming Language

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

A privacy-aware, distributed, open source social network.

Official Go implementation of the Ethereum protocol

Shōgun

PDF Reader in JavaScript

Enhancements tracking repo for Kubernetes

A cat(1) clone with wings.

Backstage is an open platform for building developer portals

Magnificent app which corrects your previous console command.

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.

Hydra, the Nix-based continuous build system

A highly efficient implementation of Gaussian Processes in PyTorch

Spring Batch is a framework for writing batch applications using Java and Spring

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

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

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

Creating delicious APIs for Django apps since 2010.

A powerful all-in-one bot for Twitch streamers

A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure.

Chef Infra, a powerful automation platform that transforms infrastructure into code automating how infrastructure is configured, deployed and managed across any environment, at any scale

A Swifty toolchain to build better Apple apps, faster

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

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.

Real-time performance monitoring, done right! https://my-netdata.io/

Q&A-based community knowledge-sharing software

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