Interactions
Draggable
Droppable
Resizable
Selectable
Sortable
Widgets
Accordion
Datepicker
Dialog
Progressbar
Slider
Tabs
Effects
Add Class
Remove Class
Animate
Effect
Hide
Show
Switch Class
Toggle
Toggle Class
About jQuery UI
UI Developer Guidelines
Changelog
Roadmap
Subversion Access
Theming
Theming jQuery UI
jQuery UI CSS Framework
ThemeRoller application
Theme Switcher Widget

Subversion (SVN)

All source code is kept under Subversion control, which you can browse online. There's a download link available for any file or directory, if you only want to download a portion of the jQuery UI code.

If you have access to Subversion, you can connect to the repository here:

svn co http://jquery-ui.googlecode.com/svn/trunk

You can also check out a specific version of jQuery UI from subversion at:

svn co http://jquery-ui.googlecode.com/svn/tags/<version>
e.g. svn co http://jquery-ui.googlecode.com/svn/tags/1.5rc1

Commit Access

If you need commit access to the jQuery UI subversion repository, post a request to the jQuery UI Development list.