Math Box.js
MathBox is a (work in progress) library for making presentation-quality math diagrams in WebGL.
jQuery Instagram
Instagram jQuery plugin
Placeholders.js
A JavaScript polyfill for the HTML5 placeholder attribute
Jailed
Jailed - execute untrusted code with custom permissions
Humane.js
A simple, modern, browser notification system
Galen
Layout and functional testing framework for websites
Drawer
A small CSS3 and jQuery plugin for app style drawer menu.
Poly
Small, fast, awesome. The only ES5-ish set of polyfills (shims) you can mix-and-match because they're individual AMD modules.
Bootstrap Progressbar
progressbar interactions for twitter bootstrap 2 & 3
Go Js
All GoJS samples, extensions, and documentation
jVectorMap
Show interactive vector maps on the web.
Cutjs
Lightweight, fast, interactable 2D HTML5 rendering engine for cross-platform game development.
Lazy Line Painter
A jQuery plugin for SVG path animation
Img Liquid
jQuery plugin to resize images to fit in a container.
Somajs
Scalable javascript framework
jQuery Gantt
jQuery Gantt Chart
Nuclear Js
Reactive Flux built with ImmutableJS data structures. Framework agnostic.