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

Apache Superset (incubating) is a modern, enterprise-ready business intelligence web application

fugitive.vim: a Git wrapper so awesome, it should be illegal

Framework for server-rendered React apps

:leaves: JavaScript library for mobile-friendly interactive maps

Desktop/Android/HTML5/iOS Java game development framework

Scalable datastore for metrics, events, and real-time analytics

Prettier is an opinionated code formatter.

Select2 is a jQuery based replacement for select boxes. It supports searching, remote data sets, and infinite scrolling of results.

A delightful networking framework for iOS, macOS, watchOS, and tvOS.

A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure.

Octopress is an obsessively designed framework for Jekyll blogging. It’s easy to configure and easy to deploy. Sweet huh?

Azure WebJobs SDK

Zcash - Internet Money

Insanely easy way to work with Android Database.

Computation using data flow graphs for scalable machine learning

Authorization Gem for Ruby on Rails.

A bunch of lints to catch common mistakes and improve your Rust code

Dependency Manager for PHP

Entity Framework Core is a lightweight and extensible version of the popular Entity Framework data access technology

A declarative, efficient, and flexible JavaScript library for building user interfaces.

The Prometheus monitoring system and time series database.

OS-agnostic, system-level binary package manager and ecosystem

A PSP emulator for Android, Windows, Mac and Linux, written in C++. Want to contribute? Join us in #ppsspp on freenode (IRC) or just send pull requests / issues. For discussion use the forums on ppsspp.org.

Mirror of Apache Kafka

The host/runtime that powers Azure Functions

ManageIQ Open-Source Management Platform

This repo contains the .NET Core foundational libraries, called CoreFX. It includes classes for collections, file systems, console, XML, async and many others. We welcome contributions.

Open Source, Distributed, RESTful Search Engine

An extensible media player for Android

Quickly ramp up in new programming languages.

A habit tracker app which treats your goals like a Role Playing Game.

A CMS for Static Site Generators

A habit tracker app which treats your goals like a Role Playing Game.

A tool for secrets management, encryption as a service, and privileged access management

Where programmers share ideas and help each other grow

The tool for beautiful monitoring and metric analytics & dashboards for Graphite, InfluxDB & Prometheus & More

node.js cms and web app framework

Google core libraries for Java

Fully featured framework for fast, easy and documented API development with Flask

Yii 2: The Fast, Secure and Professional PHP Framework

Dubbox now means Dubbo eXtensions, and it adds features like RESTful remoting, Kyro/FST serialization, etc to the Dubbo service framework.

Material Component Framework for Vue.js 2

RailsAdmin is a Rails engine that provides an easy-to-use interface for managing your data

Most popular Mocking framework for unit tests written in Java

Vi/Vim emulation for Sublime Text 3

A delightful community-driven (with 1,000+ contributors) framework for managing your zsh configuration. Includes 200+ optional plugins (rails, git, OSX, hub, capistrano, brew, ant, php, python, etc), over 140 themes to spice up your morning, and an auto-u

☕️ simple, flexible, fun javascript test framework for node.js & the browser

Classier solution for file uploads for Rails, Sinatra and other Ruby web frameworks

Open Dylan compiler and IDE

:house_with_garden: Open-source home automation platform running on Python 3