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

Lightweight, modular, and extensible library for functional programming.

💡 A hinting engine for the web

Easy and Repeatable Kubernetes Development

Open source rich text editor based on HTML5 and the progressive-enhancement approach. Uses a sophisticated security concept and aims to generate fully valid HTML5 markup by preventing unmaintainable tag soups and inline styles.

Certbot is EFF's tool to obtain certs from Let's Encrypt and (optionally) auto-enable HTTPS on your server. It can also act as a client for any other CA that uses the ACME protocol.

Realm is a mobile database: a replacement for SQLite & ORMs

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

ActiveModel::Serializer implementation and Rails hooks

Mirror of Apache Spark

RIOT - The friendly OS for IoT

Framework for quickly creating connected applications in Kotlin with minimal effort

A web interface for MySQL and MariaDB

This is the project website for the TEAMMATES feedback management tool for education

An open source GitHub Android client app, faster and concise.

Kanban board for github issues

Database based asynchronous priority queue system -- Extracted from Shopify

UI designer for Kivy (WIP)

The HTML5 ebook framework to publish interactive books & magazines on iPad & iPhone using simply open web standards

The JavaScript library for modern SVG graphics.

Pencil2D is an animation/drawing software for Mac OS X, Windows, and Linux. It lets you create traditional hand-drawn animation (cartoon) using both bitmap and vector graphics. Pencil2D is free and open source.

PDF Reader in JavaScript

HTTP client/server framework for asyncio

:tada: A magical vue admin http://panjiachen.github.io/vue-element-admin

Chronic is a pure Ruby natural language date parser.

Authorization Gem for Ruby on Rails.

Simple and portable (but not inflexible) GUI library in C that uses the native GUI technologies of each platform it supports.

Ember front end for HospitalRun

Declarative statistical visualization library for Python

Main repository for the Sphinx documentation builder

Universal markup converter

Versatile Vue.js Framework

Bitfocus Companion enables the reasonably priced Elgato Streamdeck to be a professional shotbox surface for an increasing amount of different presentation switchers, video playback software and broadcast equipment.

A Ruby interface to the Twitter API.

An analyzer library for C# and VB that uses Roslyn to produce refactorings, code analysis, and other niceties.

LaraAdmin is a Open source Laravel Admin Panel / CMS which can be used as Admin Backend, Data Management Tool or CRM boilerplate for Laravel with features like Advanced CRUD Generation, Module Manager, Backups and many more.

Go engine with no human-provided knowledge, modeled after the AlphaGo Zero paper.

Ticket shop application for conferences, festivals, concerts, tech events, shows, exhibitions, workshops, barcamps, etc.

📱 Nextcloud Android app

Create React apps with no build configuration.

🔐 JSON Web Token Authentication for Laravel & Lumen

A programmer-oriented testing framework for Java.

hub helps you win at git.

alf.io - The open source ticket reservation system

Easily make RESTful web services for time series reporting with Big Data analytics engines like Druid and Hive.

EventMachine: fast, simple event-processing library for Ruby programs

Web interface for MetaCPAN

Active Merchant is a simple payment abstraction library extracted from Shopify. The aim of the project is to feel natural to Ruby users and to abstract as many parts as possible away from the user to offer a consistent interface across all supported gatew

Website for coordinating rehabilitation of people affected in the 2018 Kerala Floods

Role management library with resource scoping

Main UserLAnd Repository