Machina.js
js ex machina - finite state machines in JavaScript
Curtainsjs
curtains.js is a lightweight vanilla WebGL javascript library that turns HTML elements into interactive textured planes.
Nanobar
Very lightweight progress bars. No jQuery
Galen
Layout and functional testing framework for websites
jQuery.mb.yt Player
use a custom youtube player for a video as background on jQuery framework
Galleria
Galleria is a JavaScript image gallery framework. The aim is to simplify the process of creating professional image galleries for the web and mobile devices.
Multiscroll.js
multiscroll plugin by Alvaro Trigo. Create full screen pages with two scrolling sections per page.
Readmore.js
A lightweight jQuery plugin for collapsing and expanding long blocks of text with "Read more" and "Close" links.
Superpowers Core
:octopus: Superpowers — Extensible HTML5 app for real-time collaborative projects
Montage
Core framework: Montage simplifies the development of rich HTML5 applications by providing modular components, real-time two-way data binding, CommonJS dependency management, and many more conveniences. Join us on irc.freenode.net#montage or https://groups.google.com/d/forum/montagejs
Glfx.js
An image effects library for JavaScript using WebGL
Meny
A three dimensional and space effecient menu
Curl
A small, fast module and resource loader with dependency management. (AMD, CommonJS Modules/1.1, CSS, HTML, etc.)
Pizzicato
Library to simplify the way you create and manipulate sounds with the Web Audio API.
Almond
A minimal AMD API implementation for use after optimized builds
Simplecart
A simple javascript shopping cart that easily integrates with your current website.
Fortune
A library for managing structured data in Node.js and web browsers.