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

Elastic UI Framework 🙌

A toolkit for machine learning from time series

.NET Decompiler

Beancount: Double-Entry Accounting from Text Files.

:notebook_with_decorative_cover: Simple Notes app for Nextcloud

Issue tracker for CoreOS Container Linux

Bandit is a tool designed to find common security issues in Python code.

Design patterns implemented in Java

TorchGeo: datasets, samplers, transforms, and pre-trained models for geospatial data

API Documentation Browser

Powerful, simple, audio tag editor for GNU/Linux

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.

Manage job listings from the WordPress admin panel, and allow users to post jobs directly to your site.

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

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)

Apache Lucene and Solr open-source search software

Ground mobile data collection app for Android

Consul - Open Government and E-Participation Web Software

React Ace Component

A complete native navigation solution for React Native

A simple, yet elegant HTTP library.

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

Python HTTP Requests for Humans™ ✨🍰✨

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

Apache ZooKeeper

Vi/Vim emulation for Sublime Text 3

(Golang) Go bindings for Discord

Framework for quickly creating connected applications in Kotlin with minimal effort

Automated linting of Cascading Stylesheets

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

Which is the fastest web framework?

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

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

Statically sized arrays for Julia

Classic UI of ManageIQ

Abseil Common Libraries (C++)

⚙️ Browser devtools extension for debugging Vue.js applications.

Microsoft.Recognizers.Text provides recognition and resolution of numbers, units, and date/time expressed in multiple languages (CN, EN, FR, ES, PT, DE. Partial support for NL, JA, KO). Contributions are greatly welcome! Packages are available at https://

Framework for Evolutionary Event-Driven Microservices on the JVM

Brings the popular ruby faker gem to Java

A fast and easy-to-use status bar

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

GitHub Classroom automates repository creation and access control, making it easy for teachers to distribute starter code and collect assignments on GitHub.

✎ Android client for Nextcloud Notes app.

A free and open-source MMORPG server emulator written in C++

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

Code documentation written as code! How novel and totally my idea!

Flexible authentication solution for Rails with Warden.