Feature detect HTML5 and CSS3 features, with handy css and javascript hooks so you can progressively enhance to your heart's content.

jQuery JavaScript Library

An easy-to-use JavaScript Unit Testing framework.

jQuery File Upload Plugin

A jQuery plugin for the globalization of string, date, and number formatting and parsing.

Total rewrite of jLinq - Public beta code

Plupload is a JavaScript API for dealing with file uploads it supports features like multiple file selection, file type filtering, request chunking, client side image scaling and it uses different runtimes to achieve this such as HTML 5, Silverlight, Flash, Gears and BrowserPlus.

A data linking plugin for jQuery.

jQuery Mobile Framework

A templating plugin for jQuery.