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

A simple, strongly typed .NET C# command line parser library using a fluent easy to use interface

Main Website for The Odin Project

🔮 An easy-to-use JavaScript unit testing framework.

A chess library for Python, with move generation and validation, PGN parsing and writing, Polyglot opening book reading, Gaviota tablebase probing, Syzygy tablebase probing, and UCI/XBoard engine communication

Web-based P2P collaborative editor for live coding sounds and images

Holodex frontend source code. Changelog published at https://holodexnet.github.io/Holodex/

Clojure in Unity

Complete Ruby geocoding solution.

Open source tracking and inventory management application for nonprofit, Voices of Consent (Ruby for Good 2019)

Scripts to automate development/test setup for openshift integration with https://github.com/metal3-io/

the easiest way to use Google Maps

Bastion: Fault-tolerant Runtime for Rust applications

Expressive middleware for node.js using ES2017 async functions

Reversible conversions between types

Modern concurrency tools including agents, futures, promises, thread pools, supervisors, and more. Inspired by Erlang, Clojure, Scala, Go, Java, JavaScript, and classic concurrency patterns.

We create a Dapp where users can create a profile and then give badges to other users.

🍻 A CLI workflow for the administration of macOS applications distributed as binaries

A python library for Argo data beginners and experts

Open-source is now fun and rewarding!

Privacy enhanced BitTorrent client with P2P content discovery

Superfluid Protocol Monorepo: the specification, implementations, peripherals and development kits.

GitHub workflow-optimizing bot by @zulip

A multithreaded Minecraft server built for redstone.

NOT MAINTAINED. Apollo - The logz.io continuous deployment solution over kubernetes

Concurrent browser tests for your Elixir web apps.

An open-source, community oversight dataset of all U.S. Prosecutors.

Unittest extensions for Flask

An angular wrapper for popper.js, great for tooltips and positioning popping elements

Pure Go Postgres driver for database/sql

Faker is a pure Elixir library for generating fake data.

🍻 A CLI workflow for the administration of macOS applications distributed as binaries

An HTTP toolkit for security research.

Command line Kiwix tools: kiwix-serve, kiwix-manage, ...

Bolt is a simple CMS written in PHP. It is based on Silex and Symfony components, uses Twig and either SQLite, MySQL or PostgreSQL.

ZMQ-based RPC with HTTP support for SCADA applications in python

There's a function for that!

An Extensible, Concurrent Web Framework for Rust

Quiplash replacement

🍻 A CLI workflow for the administration of macOS applications distributed as binaries

Built with xeokit SDK. IFC, BIM and Point Cloud 3D Viewer as a package. Enables AEC & GIS applications with double precision global coordinates.

Easy file attachment management for ActiveRecord

Hypothesis is a powerful, flexible, and easy to use library for property-based testing.

A Fabric-based modpack for Minecraft that focuses on performance and graphics optimizations

CODO是一款为用户提供企业多混合云、一站式DevOps、自动化运维、完全开源的云管理平台、自动化运维平台

Quasar Framework - Build high-performance VueJS user interfaces in record time

Elasticsearch integrations for ActiveModel/Record and Ruby on Rails

A flexible web framework that promotes stability, safety, security and speed.

JavaScript's utility _ belt

Local-first code intelligence graph for MCP and CLI. Builds a persistent map of your codebase so AI coding tools read only what matters, with benchmarked context reductions on reviews and large-repo workflows.