pwgen

good util for generate pass

Still works in Mountain Lion 10.8 Does what it says.

Simple, nice app for generating passwords. This app presents a good number of options to the user. Feature request: I would like to be able to require that English words (or parts of them) be used as the plain-character sequences. This will make passwords easier to remember. Since the passwords are easier to remember, they can be made longer, too, say 16 or 20 characters.