Popmotion
A 12kb Javascript motion engine. Use for animation, physics and input tracking.
Rainbow
Simple syntax highlighting library written in javascript
Pusher Js
Pusher Javascript library
Fastdom
Eliminates layout thrashing by batching DOM read/write operations
Hogan.js
A compiler for the Mustache templating language
3 Dmol.js
WebGL accelerated JavaScript molecular graphics library
Prettydiff
Compare code instead of text.
Mithril.js
A Javascript Framework for Building Brilliant Applications
Keymaster
A simple micro-library for defining and dispatching keyboard shortcuts. It has no dependencies.
Infinity
UITableViews for the web.
Glslify
A node.js-style module system for GLSL!
Fabric.js
Javascript Canvas Library, SVG-to-Canvas (and canvas-to-SVG) Parser
Carlo
Web rendering surface for Node applications
JSON 3
A modern JSON implementation compatible with nearly all JavaScript platforms.
Timesheet.js
JavaScript library for HTML5 & CSS3 time sheets
Headstart
An automated front-end setup
Ect
Fastest JavaScript template engine with embedded CoffeeScript syntax