Underscore.db
Pure JavaScript database based on Underscore for Node, node-webkit and the browser
Tweet
put twitter on your website with tweet, an unobtrusive javascript plugin for jquery
Superpowers Core
:octopus: Superpowers — Extensible HTML5 app for real-time collaborative projects
Spine
Lightweight MVC library for building JavaScript applications
Shine.js
A library for pretty shadows.
Papa Parse
Fast and powerful CSV (delimited text) parser that gracefully handles large files and malformed input
Dojo
Dojo saves you time and scales with your development process, using web standards as its platform. It’s the toolkit experienced developers turn to for building high quality desktop and mobile web applications.
jQuery Tourbus
A jQuery tour/walkthrough plugin.
jQuery Snipe
jQuery plugin to add a sniper-lens-style zoom on images
Tock
Timer Object/Class. Kickass!
Amaran Js
Nice, sleek and stylish notifications.
Im.js
Image Match - Project to allow compare different images pixel by pixel with good performance
Optics
Profunctor implementation of Lenses, Prisms, Traversals, Isos, etc.
Chem
html5 game engine optimized for rapid development
jQuery Labelauty
A lightweight and beautiful jQuery plugin for radio and checkbox inputs.
Zoom.js
zoom in on any element in the DOM
Waud
Web Audio Library