React Native Desktop - Build OS X desktop apps using React Native
ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
Deco IDE - Best IDE for building React Native apps
Chart.js - Easy, object oriented client side graphs for designers and developers.
Supernova V4 - Turn Sketch into iOS, Android and React Native in minutes
Backbone.js - Give your JS App some Backbone with Models, Views, Collections, and Events