The Ultimate password generator?

[Fallen Angel]

It sure produces some nice long random passwords....rather a PITA to remember though I should imagine!  I can see it could have it's uses for some things though.

https://www.grc.com/passwords.htm

[PrawnDog]

depends what you have to hide, and who from....

[Giomanach]

Best password generator is the human brain.  Eventually that will run out of random codes to produce, and end up churning out the old ones :)

And longest passwords are not always the safest - far too easy to crack.  I won't give what the best password length is, else my trick is stolen :P