Audiolet
A JavaScript library for real-time audio synthesis and composition from within the browser
jQuery jKit
A very easy to use, cross platform, jQuery based UI toolkit, that's still small in size, has the features you need, and doesn't get in your way of doing things!
Ratio.js
Rational numbers for Javascript
Messi
A simple message plugin for jQuery
Filereader.js
A lightweight wrapper for the JavaScript FileReader interface
Aload
Loads images, scripts, styles, iframes, videos and audio asynchronously.
Wire
A light, fast, flexible Javascript IOC container
Svgeezy
Allows for automatic Image fallbacks for browsers that can't handle SVGs
Litegl.js
Lightweight Javascript WebGL library for handling Context, Meshes, Textures and Shaders. Relies on glMatrix 2.0, very easy to use.
Lazyload
Tiny, dependency-free async JavaScript and CSS loader.
Gas
Google Analytics on Steroids. A Google Analytics implementation with more power features.
Parsimmon
A monadic LL(infinity) parser combinator library for javascript
Papa Parse
Fast and powerful CSV (delimited text) parser that gracefully handles large files and malformed input
Freewall
Freewall is a cross-browser and responsive jQuery plugin to help you create many types of grid layouts for desktop, mobile, and tablet...
Firebug Lite
Firebug Lite: doing the Firebug way, anywhere.
Egjs Flicking
:carousel_horse: :recycle: Simple module to implement flicking carousel interaction
Cycle Core
A fully reactive JavaScript framework for Human-Computer Interaction