One of my favorite javascript library ExtJs has a new version which is currently in Beta - JQuery is still number 1 though. ExtJs is excellent with an amazing set of UI components, however, I refused to migirate to it because it was originally built with YUI engine and you all know how I don't trust code from large organizations. Anyway, recently Jack Slocum refactored the library to use one of many libraries out there including JQuery and that off course got my attention, so I started playing with it again. Today I found out that ExtJs has gone solo! Oh yes, Solo.

Ext can now run on its own without a base library. The ext-base file weighs in at 34kb minimized. This is less than YUI utilities + adapter (58kb), Prototype/Scriptaculous + adapter (71kb) or jQuery + required plugins + adapter (62kb - minimized, not packed).

If you haven't used it, feel free to download or you can start by looking at some examples.

Link to ExtJs