Catiline
JavaScript library to take the pain out of web workers.
Stupid Table Plugin
A stupidly small and simple jQuery table sorter plugin
Aload
Loads images, scripts, styles, iframes, videos and audio asynchronously.
Math Jax
Beautiful math in all browsers
Blur.js
blur.js is a jQuery plugin that produces psuedo-transparent blurred elements over other elements.
Chem
html5 game engine optimized for rapid development
AutoCompleteJS
AutoCompleteJS Widget
Ractive
Next-generation DOM manipulation
JsRender
A light-weight but powerful templating engine, highly extensible, without DOM or jQuery dependency.
Joint
JavaScript diagramming library
Ladda
Buttons with built-in loading indicators.
Cycle2
2nd gen cycling
Nano Scroller
A jQuery plugin that offers a simplistic way of implementing Lion OS scrollbars.
Casper JS
Navigation scripting & testing utility for PhantomJS and SlimerJS
Readmore.js
A lightweight jQuery plugin for collapsing and expanding long blocks of text with "Read more" and "Close" links.
Machina.js
js ex machina - finite state machines in JavaScript
Focal Point
A small set of CSS classnames to help keep images cropped on the focal point for responsive designs. Using only HTML/CSS, web authors can specify an image's focal point, which stays as the image's primary focus, while the image's available width changes on responsive webpages. Crop and re-size images depending on available width and let CSS to do all of the work, and without any JavaScript.