How to Use OS X's Built-In Password Generator
These are instructions on how to use the built-in password generator in OS X.
Launch Keychain Access from the Applications:Utilities folder.
If necessary unlock the application at top left and select Passwords from the list of categories on the left.
Click the + button at the bottom of the screen.
Click the key button from the popup window that appears.
Password Assistant will now open. You use it to generate a memorable, letters & numbers, numbers only, random, or FIPS-181 compliant password of different lengths. The quality bar will show you how secure the generated password appears to be.
[via TheVloginator (reddit)]