Your choice of cross-browser javascript GUI [closed]

When considering a JavaScript library/framework for usage you should first define on your goals. I used to separate all JavaScript libraries/frameworks into three categories by their purpose and architecture:

1. I want to pimp up my page with some really “cool” features. Go for JavaScript library.

   • jQuery
   • ZenoUI
   • old: Prototype, Mootools

2. I want to build an application with a rich front-end. I like defining UI with JavaScript and I do not mind much using custom APIs of these libraries for coding my application logic. Go for JavaScript post-library/pre-framework.

   • extjs
   • kendo
   • DHTMLX
   • Dojo
   • YUI
   • Qooxdoo
   • jQuery UI
   • Bindows – generates the exact look of Windows
   • Spry (raw, suffers severely of memory leaks)

3. I want to build an application with a rich front-end. I like defining UI in XML and I would like to code my application logic against standard APIs and make use of other developer-facing standard-based technologies. Go for JavaScript framework.

   • Sproutcore
   • Backbase
   • Ample SDK

For a more detailed comparison, see the alternatives to ExtJS.