If you aren’t using cryptographically-strong passwords by now, you are late.
It’s my opinion that PWGen is the best password-generation tool out there not only because of the methodology, but it provides us with freedom. Here is a link to download, and here is a link to the user manual. A lot of password generators are a point-and-click tool that generate a randomized string of characters and numbers. Maybe it’ll let you pick how long the password is, but that’s it. Passwords are more important than that.
PWGen takes password generation seriously and really picks up where other password generator alternatives may fall short. For some, PWGen may seem a little intimidating and too deep, but it’s incredibly easy to use and puts you in complete control of its options.
Download Link - http://pwgen-win.sourceforge.net/downloads.html