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

A simple, yet elegant HTTP library.

SpaceFM File Manager

Python HTTP Requests for Humans™ ✨🍰✨

A fast and robust web server and application server for Ruby, Python and Node.js

Ever® Teams™ - Open Work and Project Management Platform - https://ever.team

The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

Developer-first error tracking and performance monitoring

🐚 An async & dynamic ORM for Rust

A fast and easy-to-use status bar

Flexible authentication solution for Rails with Warden.

Flexible authentication solution for Rails with Warden.

Modular, contributor-friendly and blazing-fast implementation of the Ethereum protocol, in Rust

The most customizable typing website with a minimalistic design and a ton of features. Test yourself in various modes, track your progress and improve your speed.

A super-easy, composable, web server framework for warp speeds.

Issue tracker for CoreOS Container Linux

Plugin for IntelliJ IDEA that gives special support for Minecraft modding projects.

🌍🌏🌎 The whole world fits inside your cloud!

A learning management system (LMS) that lets you run an asynchronous online school, where learning is achieved through focused tasks, directed feedback, an iterative workflow, and community interaction.

Go client for TiKV

The https://freeCodeCamp.org open source codebase and curriculum. Learn to code and help nonprofits.

Home for Cluster API, a subproject of sig-cluster-lifecycle

Mocha side bar viewer that allows you to run Mocha tests from side bar menu and view results can run each level hierarchy from all tests to a single test(and each describer of course)

Statistical data visualization in Python

(Golang) Go bindings for Discord

Asynchronous HTTP client/server framework for asyncio and Python

A Ruby language server.

Apache Lucene and Solr open-source search software

Vert.x is a tool-kit for building reactive applications on the JVM

Language Savant. If your repository's language is being reported incorrectly, send us a pull request!

Dendrite is a second-generation Matrix homeserver written in Go!

Lagoon, the developer-focused application delivery platform

Exploit Development and Reverse Engineering with GDB Made Easy

:chains: A Framework for Building High Value Public Blockchains :sparkles:

Erlang build tool that makes it easy to compile and test Erlang applications and releases.

Automated linting of Cascading Stylesheets

Vi/Vim emulation for Sublime Text 3

Statically sized arrays for Julia

OpenToonz - An open-source full-featured 2D animation creation software

A collection of essential TypeScript types

Rayon: A data parallelism library for Rust

Featureful ncurses based MPD client inspired by ncmpc

Brings the popular ruby faker gem to Java

The world’s fastest framework for building websites.

PHPCI is a free and open source continuous integration tool specifically designed for PHP.

Which is the fastest web framework?

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

The task manager you actually own.

MyPaint is a simple drawing and painting program that works well with Wacom-style graphics tablets.