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

Jupyter Interactive Notebook

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

The Scala 3 compiler, also known as Dotty.

PrestaShop offers a fully scalable open source ecommerce solution.

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

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

Official doxygen git repository

Ghidra is a software reverse engineering (SRE) framework

A multi-platform .NET UI framework

SciPy library main repository

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

NumPy aware dynamic Python compiler using LLVM

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

The PHP Interpreter

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

An experimental Rust compiler front-end for IDEs

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

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

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

Apache Airflow (Incubating)

Next generation Cosmic desktop environment

Apache Pinot - A realtime distributed OLAP datastore

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

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.

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

The official Vim repository

An open source re-implementation of RollerCoaster Tycoon 2 🎢

Create React apps with no build configuration.

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.

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.

An open source payments switch written in Rust to make payments fast, reliable and affordable

Ruby on Rails

The Rust package manager

The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio.

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

Free and source-available fair-code licensed workflow automation tool. Easily automate tasks across different services.

The Ballerina Programming Language

📊 Open source visualization dashboards for OpenSearch.

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.

React components that implement Google's Material Design.

SigNoz is an open-source APM. It helps developers monitor their applications & troubleshoot problems, an open-source alternative to DataDog, NewRelic, etc. 🔥 🖥. 👉 Open source Application Performance Monitoring (APM) & Observability tool

A post-modern modal text editor.

Synapse: Matrix homeserver written in Python/Twisted.

A distributed task scheduler for Dask

Build Mobile, Desktop and WebAssembly apps with C# and XAML. Today. Open source and professionally supported.

The most widely used Python to C compiler