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

Hierarchical Engine for Large-scale Infrastructure Co-Simulation (HELICS)

AASM - State machines for Ruby classes (plain Ruby, ActiveRecord, Mongoid, NoBrainer, Dynamoid)

🏗️ A GUI to edit Doom WADs in your browser.

The world's simplest facial recognition api for Python and the command line

📄 CLI that generates beautiful README.md files

Kubernetes Storage Device Management

AppLock

The Elm Live Editor

Automatic testing of Haskell programs.

🍾 Flexible promise-based React data loader

:european_castle: My own little town (travian/townsmen) game. Playable. WIP

LaravelS is an out-of-the-box adapter between Laravel/Lumen and Swoole.

Xamarin.Forms Official Home

mocking library for Kotlin

Home of all the translations for spoken languages into programming language

DX Scanner allows you to measure quality of an app based on your source code.

A set of tools to encode, inspect, and decode audio in the Opus format.

Combines. minifies, and serves CSS or Javascript files

A free and open-source Touhou Project fangame

Configurable tool for writing clean, consistent SCSS

Linux file system lint checker/cleaner

Validator for SQLAlchemy Models

A query builder for PostgreSQL, MySQL and SQLite3, designed to be flexible, portable, and fun to use.

Free live chat widget linked to your Telegram messenger

Easily exclude node modules in Webpack

OSv, a new operating system for the cloud.

Cloudify's manager related code

Make Your Company Data Driven. Connect to any data source, easily visualize, dashboard and share your data.

Input validation using Swagger (Open API) and ajv

RawCMS is the headless CMS written in asp.net core build for developers that embrace API first technology.

Nested Routers for Django Rest Framework

A modern editor with a backend written in Rust.

A pure javascript QR code reading library. This library takes in raw images and will locate, extract and parse any QR code found within.

program python in real-time

A fast CSV command line toolkit written in Rust.

🦋 Rakudo – Raku on MoarVM, JVM, and JS

Monk is a low code Deep Learning tool and a unified wrapper for Computer Vision.

Amazon Cognito Identity SDK for JavaScript

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

lightweight, powerful javascript datetimepicker with no dependencies

Nextstrain build for novel coronavirus (nCoV)

Models of COVID-19 outbreak trajectories and hospital demand

The Design Token Framework — Adopt a unified design language across platforms, codebases, and teams

🚦 The official router for Vue 2

An easy and simple open source xkcd reader

Haskell library for command line argument processing

Wiki.js | A modern and powerful wiki app built on Node.js

This is the COVID-19 CovidSim microsimulation model developed by the MRC Centre for Global Infectious Disease Analysis hosted at Imperial College, London.

Transparent proxy server that works as a poor man's VPN. Forwards over ssh. Doesn't require admin. Works with Linux and MacOS. Supports DNS tunneling.