Sweetalert
A beautiful replacement for JavaScript's "alert"
Wad
Web Audio DAW. Use the HTML5 Web Audio API for dynamic sound synthesis. It's like jQuery for your ears.
Zoom.js
zoom in on any element in the DOM
Liquidfun
2D physics engine for games
Wysiwyg Editor
A flat designed jQuery WYSIWYG text editor based on HTML5, free only for non-commercial projects. For commercial applications you have to purchase a license from
Goodnight
A super small Javascript plugin for applying CSS styles at night.
Jailed
Jailed - execute untrusted code with custom permissions
Webshim
Webshims Lib is a modular capability-based polyfill-loading library
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!
Vegas
Vegas is a jQuery plugin to add beautiful fullscreen backgrounds to your webpages. It even allows Slideshows.
Skel
A lightweight responsive framework for the www
Uilang
A minimal, UI-focused programming language for web designers.
Timeliner
jQuery plugin to make an interactive, historical timeline
Tabletop
Tabletop.js gives spreadsheets legs
Smooth Div Scroll
A jQuery plugin for smooth scrolling.
Smartmenus
jQuery website menu plugin. Responsive and accessible list-based website menus that work on all devices.
Pouchdb
PouchDB is a pocket-sized database.