Tutorial: Create a Beautiful Password Strength Meter. In this tutorial we will be creating a beautiful password strength indicator. It will determine the complexity of a password and move a meter accordingly with the help of the new Complexify jQuery plugin. Only when a sufficiently complex password is entered, will the user be able to continue with their registration.
A recent study examined the usefulness of those ubiquitous red-yellow-green password strength testers on websites run by big names such as Google, Yahoo, Twitter, and Microsoft/Skype. The researchers used algorithms to send millions of “not-so-good” passwords through these meters and were largely underwhelmed by the results.