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

🔐 JSON Web Token Authentication for Laravel & Lumen

A reactive notebook for Python — run reproducible experiments, execute as a script, deploy as an app, and version with git.

Ansible Community General Collection

The zero configuration build tool for the web. 📦🚀

The Free Software Media System

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

Warzone 2100 - a free and open source real time strategy game.

Next-generation ES module bundler

📝 Minimalistic Vue-powered static site generator

Metasploit Framework

:zap: A Fast, Extensible Progress Bar for Python and CLI

The Racket repository

The Racket repository

A collection of libraries and tools that help you build adaptive, accessible, and robust user experiences.

3D plotting and mesh analysis through a streamlined interface for the Visualization Toolkit (VTK)

GNU Radio – the Free and Open Software Radio Ecosystem

An extensible multilanguage static code analyzer.

Build amazing native and progressive web apps with open web technologies. One app running on everything 🎉

A powerful cross-platform UI toolkit for building native-quality iOS, Android, and Progressive Web Apps with HTML, CSS, and JavaScript.

Archipelago Multi-Game Randomizer and Server

The Python Package Index

A Minimalistic Wrapper for IndexedDB

A Git-based CMS for Static Site Generators

persist and rehydrate a redux store

Java DSL for easy testing of REST services

Automatically generates Rust FFI bindings to C (and some C++) libraries.

Mirror of Apache RocketMQ

🚀 10x easier, 🚀 140x lower storage cost, 🚀 high performance, 🚀 petabyte scale - Elasticsearch/Splunk/Datadog alternative for 🚀 (logs, metrics, traces, RUM, Error tracking, Session replay).

Erlang/OTP

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

Realtime MVC Framework for Node.js

Fast, secure, efficient backup program

a collaborative knowledge-exchange platform in Rails; we welcome first-time contributors! :balloon:

⚡️ The Jamstack framework for Vue.js

Point Cloud Library (PCL)

CNCF Jaeger, a Distributed Tracing Platform

A lightweight, fast and extensible game server for Minecraft

Catch CSS curve balls.

Data validation using Python type hints

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

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.

🙃 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

Staticcheck - The advanced Go linter

A SwiftUI Mastodon client

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

Python packaging and dependency management made easy

The user-friendly command line shell.

awesome window manager

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

:leaves: JavaScript library for mobile-friendly interactive maps