Ext Core is a lightweight and feature-rich JavaScript library for enhancing Web pages. It provides abstractions for DOM manipulation/traversal, AJAX, events, custom events, animations, templating, OO mechanisms, and more. Ext JS is a cross-browser JavaScript library for building rich Internet applications. In addition to the Core functions, Ext JS has a library of high-performance, customizable widgets and a component model. Ext GWT is a Java library for building rich Internet applications with Google Web Toolkit (GWT). Ext was originally built on top of YUI, jQuery, or Prototype. It now has its own native Ext base library, but using it with jQuery is still common.
License: Ext Core, MIT; Ext JS and Ext GWT: Dual Commercial/GPL v3
The Bossies 2010 index:
Bossie Awards 2010: The best open source software of the year
Bossie Awards 2010: The best open source applications
Bossie Awards 2010: The best open source application development software
Bossie Awards 2010: The best open source platforms and middleware
Bossie Awards 2010: The best open source networking software
