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

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

The easy-to-use OpenStreetMap editor in JavaScript.

The world’s fastest framework for building websites.

:leaves: JavaScript library for mobile-friendly interactive maps

A lightweight, fast and extensible game server for Minecraft

A lightweight, fast and extensible game server for Minecraft

Ceph is a distributed object, block, and file storage platform

Yii 2: The Fast, Secure and Professional PHP Framework

K-9 Mail – Advanced Email for Android 📧

Cross-platform HTTP and GraphQL Client

Connect suppliers, distributors and consumers for the sale and purchase of local produce

This is the main, active Jersey development repository. Forks and pull requests are welcome! For more information about Jersey, please visit the Jersey website:

🖖 A progressive, incrementally-adoptable JavaScript framework for building UI on the web.

A web interface for MySQL and MariaDB

Modular search for Django

Mautic: Open Source Marketing Automation Software.

WordPress for Android

Netty project - an event-driven asynchronous network application framework

Full Stack Web Framework in Python & JS. Used to build ERPNext

Framework for quickly creating connected applications in Kotlin with minimal effort

A CMS for Static Site Generators

Swagger UI is a collection of HTML, Javascript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.

🥑 ArangoDB is a native multi-model database with flexible data models for documents, graphs, and key-values. Build high performance applications using a convenient SQL-like query language or JavaScript extensions.

Make Your Company Data Driven. Connect to any data source, easily visualize, dashboard and share your data.

A query builder for PostgreSQL, MySQL and SQLite3, designed to be flexible, portable, and fun to use.

Sentry is a cross-platform crash reporting and aggregation platform.

📱 Nextcloud iOS app

API-aware Networking and Security using eBPF and XDP

Distributed Task Queue (development branch)

React components that implement Google's Material Design.

React components that implement Google's Material Design.

Open source platform for the machine learning lifecycle

The OpenAPI Specification Repository

GNU Radio

The world's simplest facial recognition api for Python and the command line

wallabag is a self hostable application for saving web pages: Save and classify articles. Read them later. Freely.

Create agents that monitor and act on your behalf. Your agents are standing by!

Create agents that monitor and act on your behalf. Your agents are standing by!

a Rocket-fast SYStem for LOG processing

Open Source Web Application Framework for ASP.NET Core

The component library behind the Carbon Design System

An extensible media player for Android

🔐 JSON Web Token Authentication for Laravel & Lumen

Deduplicating archiver with compression and authenticated encryption.

AngularJS - HTML enhanced for web apps!

A scalable, distributed Time Series Database.

The Java gRPC implementation. HTTP/2 based RPC

The rails application powering http://www.openstreetmap.org/

The user-friendly command line shell.

Shōgun