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

OpenToonz - An open-source full-featured 2D animation creation software

Rayon: A data parallelism library for Rust

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

OpenTelemetry JavaScript Client

Mocha side bar viewer that allows you to run Mocha tests from side bar menu and view results can run each level hierarchy from all tests to a single test(and each describer of course)

React Hooks for Data Fetching

Apache Lucene and Solr open-source search software

Generate types and converters from JSON, Schema, and GraphQL

🐚 An async & dynamic ORM for Rust

Dendrite is a second-generation Matrix homeserver written in Go!

MyPaint is a simple drawing and painting program that works well with Wacom-style graphics tablets.

Open source clone of Theme Hospital

Erlang build tool that makes it easy to compile and test Erlang applications and releases.

A local-first personal finance app

Automation engine to build, test and ship any codebase. Runs locally, in CI, or directly in the cloud

Automated linting of Cascading Stylesheets

LLM training in simple, raw C/CUDA

Vi/Vim emulation for Sublime Text 3

Statically sized arrays for Julia

Featureful ncurses based MPD client inspired by ncmpc

Lagoon, the developer-focused application delivery platform

Delightful JavaScript Testing.

PHPCI is a free and open source continuous integration tool specifically designed for PHP.

The https://freeCodeCamp.org open source codebase and curriculum. Learn to code and help nonprofits.

🧙‍♀️ Move Fast and Break Nothing. End-to-end typesafe APIs made easy.

Vert.x is a tool-kit for building reactive applications on the JVM

Microsoft.Recognizers.Text provides recognition and resolution of numbers, units, and date/time expressed in multiple languages (CN, EN, FR, ES, PT, DE. Partial support for NL, JA, KO). Contributions are greatly welcome! Packages are available at https://

Brings the popular ruby faker gem to Java

Boa is an embeddable and experimental Javascript engine written in Rust. Currently, it has support for some of the language.

Asynchronous HTTP client/server framework for asyncio and Python

GitHub Classroom automates repository creation and access control, making it easy for teachers to distribute starter code and collect assignments on GitHub.

A collection of essential TypeScript types

A free and open-source MMORPG server emulator written in C++

AIConfig is a config-based framework to build generative AI applications.

Exploit Development and Reverse Engineering with GDB Made Easy

Essential hooks for modding with Fabric.

Realtime Web Apps and Dashboards for Python and R

💨 Fast, Async-ready, Openapi, type hints based framework for building APIs

LibreHealth EHR - Free Open Source Electronic Health Records

Small, fast and powerful console music player for Unix-like operating systems.

A command line tool to help build, run, and test web extensions

This is a repository for collecting global custom management extensions for the Django Framework.

Personal Productivity & Accountability OS -Turn Intent Into Discipline with server-authoritative commitments, time-blocked planning, and proof-of-work verification.

The platform for professional publishers

SkyFireEMU is a full featured F/OSS World of Warcraft: Cataclysm emulator written in C++. || Compatible with World of Warcraft client 4.0.6a (Build:13623) || Public DB is located on forum

A terminal emulator for the 21st century.

Fluent Migrations framework for .net

Next-gen browser and mobile automation test framework for Node.js