Pageguide
An interactive guide for web page elements using jQuery and CSS3
Bootstro.js
Tiny JS library using bootstrap's popovers to help guide your users around your website
Ramda
:ram: Practical functional Javascript
Plottable
A library of modular chart components, built on D3
Tagmanager
A jQuery plugin (working nicely with twitter bootstrap)
Tabris Js
tabris.js - native apps in JavaScript
Mindb
Database on JavaScript
Ng Morphing Modal
Angular Morphing Modal
React Widgets
set of stateless ui widgets for React
React Bootstrap
Bootstrap 3 components built with React
Quixote
CSS unit testing
Dynamics.js
Javascript library to create physics-based CSS animations
Glslify
A node.js-style module system for GLSL!
Webgl Workshop
The sequel to shader-school: Learn the WebGL API
Shader School
A workshopper for GLSL shaders and graphics programming
Colorpicker
jQuery UI widget for color picking (similar to the one in Microsoft Office 2010).
Uv Charts
Simple yet powerful JavaScript Charting library built using d3.js