jQuery Mobile Framework
Custom Elements-Based HTML5 UI Framework for Building Your Mobile Front End
Delightful, performance-focused pure css loading animations.
Marko template engine
Reveal CSS animation as you scroll down a page
noty - jquery notification plugin
BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework.
Navigable waveform built on Web Audio and Canvas
The MQTT client for Node.js and the browser
Turbolinks makes navigating your web application faster
A fast & lightweight polyfill for min/max-width CSS3 Media Queries (for IE 6-8, and more)
a 2D rigid body physics engine for the web