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

The Crystal Programming Language

Component infrastructure and Material Design components for Angular

The Crystal Programming Language

Magic Another Game Engine

Issue tracker for Sublime Text

Jupyter Interactive Notebook

Vim-fork focused on extensibility and usability

The Scala 3 compiler, also known as Dotty.

OpenMMLab Detection Toolbox and Benchmark

Novel Coronavirus (COVID-19) Cases, provided by JHU CSSE

An extremely fast Python linter and code formatter, written in Rust.

Official upstream development repository for Cabal and cabal-install

Animated sprite editor & pixel art tool (Windows, macOS, Linux)

Official doxygen git repository

Terraform enables you to safely and predictably create, change, and improve infrastructure. It is a source-available tool that codifies APIs into declarative configuration files that can be shared amongst team members, treated as code, edited, reviewed, a

:star: Vim for Visual Studio Code

Ghidra is a software reverse engineering (SRE) framework

A multi-platform .NET UI framework

a fast, scalable, multi-language and extensible build system

SciPy library main repository

Open Food Facts database, API server and web interface - 🐪🦋 Perl, CSS and JS coders welcome 😊 For helping in Python, see Robotoff or taxonomy-editor

Apache Pinot - A realtime distributed OLAP datastore

NumPy aware dynamic Python compiler using LLVM

The PHP Interpreter

Cloud-native high-performance edge/middle/service proxy

Apache Airflow - A platform to programmatically author, schedule, and monitor workflows

Apache Airflow (Incubating)

A free, online learning platform to make quality education accessible for all.

An experimental Rust compiler front-end for IDEs

The new Windows Terminal and the original Windows console host, all in the same place!

Distributed transactional key-value database, originally created to complement TiDB

📊 Open source visualization dashboards for OpenSearch.

Nomad is an easy-to-use, flexible, and performant workload orchestrator that can deploy a mix of microservice, batch, containerized, and non-containerized applications. Nomad is easy to operate and scale and has native Consul and Vault integrations.

Rules engine for cloud security, cost optimization, and governance, DSL in yaml for policies to query, filter, and take actions on resources

Rules engine for AWS management, DSL in yaml for query, filter, and actions on resources

Next generation Cosmic desktop environment

The official Vim repository

Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown

An open source re-implementation of RollerCoaster Tycoon 2 🎢

Get your data in RAM. Get compute close to data. Enjoy the performance.

Cocos2d-x is a suite of open-source, cross-platform, game-development tools utilized by millions of developers across the globe. Its core has evolved to serve as the foundation for Cocos Creator 1.x & 2.x.

The Rust package manager

Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Linux, *BSD and Mac OS X.

Official repository for IPython itself. Other repos in the IPython organization contain things like the website, documentation builds, etc.

React components that implement Google's Material Design.

React components that implement Google's Material Design.

MUI Core: Ready-to-use foundational React components, free forever. It includes Material UI, which implements Google's Material Design.

Ruby on Rails