jQuery UI is a curated set of user interface interactions, effects, widgets, and themes built on top of jQuery. Whether you're building highly interactive web applications, or you just need to add a date picker to a form control, jQuery UI is the perfect choice.
If you want to use jQuery UI, go to [jqueryui.com](http://jqueryui.com) to get started, [jqueryui.com/demos/](http://jqueryui.com/demos/) for demos, [api.jqueryui.com](http://api.jqueryui.com/) for API documentation, or the [Using jQuery UI Forum](http://forum.jquery.com/using-jquery-ui) for discussions and questions.
To discuss development with team members and the community, visit the [Developing jQuery UI Forum](http://forum.jquery.com/developing-jquery-ui) or [#jqueryui-dev on irc.freenode.net](http://irc.jquery.org/).
Run the unit tests with a local server that supports PHP. No database is required. Pre-configured php local servers are available for Windows and Mac. Here are some options: