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

Low-Cost Open Source Ventilator or PAPR

Linux file system lint checker/cleaner

💧 A server-side Swift HTTP web framework.

🍿 A cross-browser library of CSS animations. As easy to use as an easy thing.

JavaScript library that generates liturgical calendars of the Roman Rite of the Roman Catholic Church.

A library for quickly providing a REST API with express or connect

A Python utility / library to sort imports.

AI-powered platform delivering personalized financial planning, tax optimization, and investment insights in real time

The Nextstrain website

PHP library that provides a filesystem abstraction layer − will be a feast for your files!

Generates attr_accessors that encrypt and decrypt attributes

An embedded key/value database for Go.

ReactJS based Presentation Library

Lint tool for Chef cookbooks.

Rails plugin to conveniently handle multiple models in a single form.

Local-first Japanese speaking practice for Korean learners; SDG 4 Quality Education OSS with pre-authored dialogue banks and local STT/TTS.

Package gorilla/websocket is a fast, well-tested and widely used WebSocket implementation for Go.

Temporal Python SDK

Algorithm and data structure articles for https://cp-algorithms.com (based on http://e-maxx.ru)

Python API wrapper for Instructure's Canvas LMS. Easily manage courses, users, gradebooks, and more.

Heterogenous Agents Resources & toolKit

From ticket to reviewed pull request. Free and open-source, on your machine.

Python web framework for building enterprise-ready apps. Higher level framework (built on top of Django), strives to handle all components of application logics that are needed for enterprise readiness at the framework level.

Fortio load testing library, command line tool, advanced echo server and web UI in go (golang). Allows to specify a set query-per-second load and record latency histograms and other useful stats.

An open-source, nonprofit activism network

The Composer of ggplots

graphql server with nodejs using mongoDB

Text preprocessing, representation and visualization from zero to hero.

Compression abstraction library and utilities

Glucosio Android App

Use LINQ to retrieve data from spreadsheets and csv files

A platform for developing apps using JRuby on Android.

The Unofficial Apple iOS Swift Calendar View. iOS calendar Library. iOS calendar Control. 100% Customizable

Distributed performance testing platform for APIs

A realtime distributed messaging platform

The fastest way to bring multi-agent workflows to production.

Matplot++: A C++ Graphics Library for Data Visualization 📊🗾

OpenAPI Diff and Breaking Changes

end to end encrypted secret sync for developer teams. encrypt locally; the server only ever stores ciphertext.

A modern file tail utility based on Rx.Net which show cases reactive programming and Dynamic Data (see https://github.com/RolandPheasant/DynamicData)

A Golang plugin collection for SublimeText 3, providing code completion and other IDE-like features.

Using Mockito with Kotlin

The most advanced responsive front-end framework in the world. Quickly create prototypes and production code for sites that work on any kind of device.

:muscle: SEGS - Super Entity Game Server

Active Record, improved. Live again :)

High-performance browser-grade HTML5 parser

Using Mockito with Kotlin

New generation of the Flyve MDM Dashboard