Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
Vue.js - Reactive Components for Modern Web Interfaces
Node.js - Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications
Webix UI - An enterprise JavaScript Library for cross-platform app development with HTML5 JavaScript widgets and easy integration with most popular JavaScript Frameworks.
Django - The Web framework for perfectionists with deadlines
Polymer - Polymer is a library that uses the latest web technologies to let you create custom HTML elements.