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

The Twitch Enhancement Suite. Get custom emotes and tons of new features you'll never want to go without.

Data validation using Python type hints

A lightweight, fast and extensible game server for Minecraft

A lightweight, fast and extensible game server for Minecraft

The Python Package Index

An open-source user mode debugger for Windows. Optimized for reverse engineering and malware analysis.

Staticcheck - The advanced Go linter

Catch CSS curve balls.

Widelands is a free, open source real-time strategy game with singleplayer campaigns and a multiplayer mode. The game was inspired by Settlers II™ (© Bluebyte) but has significantly more variety and depth to it.

The user-friendly command line shell.

awesome window manager

Python package for earth-observing satellite data processing

A code-searching tool similar to ack, but faster.

A delightful community-driven (with 1,000+ contributors) framework for managing your zsh configuration. Includes 200+ optional plugins (rails, git, OSX, hub, capistrano, brew, ant, php, python, etc), over 140 themes to spice up your morning, and an auto-u

🙃 A delightful community-driven (with 2,200+ contributors) framework for managing your zsh configuration. Includes 300+ optional plugins (rails, git, macOS, hub, docker, homebrew, node, php, python, etc), 140+ themes to spice up your morning, and an aut

Java libraries for writing microservices

Run Kubernetes locally

An open-source, code-first Python toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.

Python packaging and dependency management made easy

The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

Yosys Open SYnthesis Suite

Ruby enVironment Manager (RVM)

Ruby enVironment Manager (RVM)

Fast, secure, efficient backup program

:leaves: JavaScript library for mobile-friendly interactive maps

:zap: Universal Workflow Orchestration Platform — Code in any language, run anywhere. 900+ plugins for data, infrastructure, and AI automation.

Cross-platform, customizable ML solutions for live and streaming media.

Open-source keyboard firmware for Atmel AVR and Arm USB families

A modern Prolog implementation written mostly in Rust.

Official haskell ide support via language server (LSP). Successor of ghcide & haskell-ide-engine.

The personal finance app for everyone (by everyone)

The content behind MDN Web Docs

Support for adding OAuth1(a) and OAuth2 features (consumer and provider) for Spring web applications.

Dapper - a simple object mapper for .Net

A Chaos Engineering Platform for Kubernetes.

Spring Boot

Kolibri Learning Platform: the offline app for universal education

光 HikariCP・A solid, high-performance, JDBC connection pool at last.

High-Performance server for NATS, the cloud native messaging system.

CNCF Jaeger, a Distributed Tracing Platform

High-Performance server for NATS.io, the cloud and edge native messaging system.

A virtual machine for executing programs written in Hack.

Familiar asyncio ORM for python, built with relations in mind

Truly independent web browser

Data Apps & Dashboards for Python. No JavaScript Required.

A scalable, distributed Time Series Database.

Background Music, a macOS audio utility: automatically pause your music, set individual apps' volumes and record system audio.

The Intuitive Vue Framework.