Scrob Master
Master your scroll events.
Probability.js
Probability.js makes it easy to call JavaScript functions by probability in Node.js and the browser.
Is Near
Calculates if the mouse position is near to a given element.
AutoCompleteJS
AutoCompleteJS Widget
Kefir
A Reactive Programming library for JavaScript
Thrill
Runs tests in many browsers.
Persist State
jQuery Ui widget that will transparently save the state of checkboxes, inputs, selects, etc in localStorage, restoring these on the user's next visit to the page.
Perfect Scrollbar
Tiny but perfect jQuery scrollbar plugin
jQuery.simple Weather
A simple jQuery plugin to display current weather data for any location and doesn't get in your way. Now supports HTML5 GeoLocation!
ifvisible.js
Checks if the current page is visible or not
Theory
Abstraction layer for cross platform JavaScript.
Svgeezy
Allows for automatic Image fallbacks for browsers that can't handle SVGs
Straw
Realtime processing framework for Node.js
Midi Writer Js
♬ JavaScript library providing an API for programmatically generating expressive multi-track MIDI files in browser and Node.
Lazy Load Xt
Lazy load XT is a jQuery plugin for images, videos and other media
JavascriptMVC
Develop with direction! With CanJS, jQuery++, FuncUnit, Steal, DocumentJS.
Canvas Engine
Framework for HTML5 Canvas oriented 2D video games