Password Tester

Password Tester is an application that uses the Password Assistant built into Mac OS X 10.3.x to verify the strength of any password you supply.

You may enter a password (any string will work) into the field, and the Password Assistant gives you both numeric and graphical indications of your password’s strength, as well as advice on potential weaknesses in it.

Password Assistant is written in the Objective–C programming language using the Cocoa programming environment.