A free open source IT asset/license management system https://snipeitapp.com

Parse-compatible API server module for Node/Express http://parseplatform.org

Modern applications with built-in automation https://www.habitat.sh

An open source code editor for the web, written in JavaScript, HTML and CSS. http://brackets.io

JavaScript Robotics and IoT programming framework, developed at Bocoup. http://johnny-five.io

The web, with simplicity. http://hanamirb.org

A safe, extensible ORM and Query Builder for Rust http://diesel.rs

OWASP Juice Shop is an intentionally insecure webapp for security trainings written entirely in Javascript which encompasses the entire OWASP Top Ten and other severe security flaws. http://owasp-juice.shop

:a: web framework for building virtual reality experiences. https://aframe.io/

Quickly ramp up in new programming languages. http://exercism.io

p5.js is a JS client-side library for creating graphic and interactive experiences, based on the core principles of Processing. http://twitter.com/p5xjs — http://p5js.org/

The GraphQL toolkit for Elixir http://absinthe-graphql.org

:tropical_fish: Babel is a compiler for writing next generation JavaScript. https://babeljs.io/

Ember.js - A JavaScript framework for creating ambitious web applications http://www.emberjs.com

pREST is a way to serve a RESTful API from any databases written in Go http://postgres.rest

Main repository for GoCD - Continuous Delivery server https://www.gocd.org

Cake (C# Make) is a cross platform build automation system. http://cakebuild.net/

A static website and blog generator https://getnikola.com/

BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework. http://chaijs.com

📛 An open source status page system for everyone. https://cachethq.io

Helping you select an MV* framework - Todo apps for React.js, Ember.js, Angular, and many more http://todomvc.com

Medium.com WYSIWYG editor clone. Uses contenteditable API to implement a rich text solution. https://yabwe.github.io/medium-editor/

Laravel Flavoured PhpSpreadsheet https://laravel-excel.maatwebsite.nl/

A privacy-aware, distributed, open source social network. https://diasporafoundation.org/

:floppy_disk: Share & live sync files anywhere via command line http://datproject.org

Hi, I'm a library for interacting with GItHub's REST API in a convenient and ergonomic way. I work on Python 2.7, 3.4, 3.5, and 3.6 https://github3.readthedocs.io

The Crystal Programming Language http://crystal-lang.org

Javascript Canvas Library, SVG-to-Canvas (& canvas-to-SVG) Parser http://fabricjs.com

Manage your application's gem dependencies with less pain http://bundler.io

Real-time Audio Feature Extraction for the Web Audio API http://hughrawlinson.github.io/meyda/