* 100% JavaScript UI Framework * Open web technologies + jQuery API * Better build-/run-time performance * SVG in Internet Explorer 5.5-8.0 * Cross-browser XUL (desktop-like UI) * Extensible SDK architecture * Custom Web Components

* Simplify the possibilities for navigating within a document, selecting DOM elements particularly effective manner, creating animations, event handling and Ajax-based applications. * Allows creating of plug-ins over the JavaScript library which allows developers to create an abstraction for interactions, animations low level, effects and widgets levels. * JQuery's modular approach enables the creation of dynamic Web pages and powerful web applications easily.