Idle.js
Javascript activity library for the browser. (away, idle, etc)
Chimee
a video player framework aims to bring wonderful experience on browser
Black Hole.js
Renders black hole gravitational lensing effects in an image canvas using WebGL, glfx.js, and numeric.js
Absurd
Writing your CSS in JavaScript. That's it!
Isjs
Check your data against regular expressions or known keywords.
Stupid Table Plugin
A stupidly small and simple jQuery table sorter plugin
Nerdamer
a symbolic math expression evaluator for javascript
Validatr
Cross Browser HTML5 Form Validation.
Textillate
A simple plugin for CSS3 text animations
Phina.js
phina.js is game library
Lodash
An alternative to Underscore.js, delivering consistency, customization, performance, and extra features.
Humane.js
A simple, modern, browser notification system
Easy Pie Chart
Lightweight jQuery plugin to render simple, animated and retina ready pie charts with the HTML5 canvas element
Create
Midgard Create, a generic web editing interface for any CMS
Communist
JavaScript library for web workers.
Bootstro.js
Tiny JS library using bootstrap's popovers to help guide your users around your website
Boiler
Boiler is a utility library that makes every day tasks in JavaScript easier by providing over 115 methods that work on arrays, collections, functions, numbers, objects, and strings.