Create your own Password strength meter in your applications using Ext JS. If you are creating any registration form this will help you a lot by notifying the user about the strength of the entered password. If you want to know more about this then take a look at this - Password Meter

The Password Meter , this form do not do anything and have very little validation. This solely demonstrate how you can use Ext Forms to build and layout forms on the fly.The required JS file is not minified so the files are readable.