Diceware

With Symbols

Security level:

Diceware
Arnold G. Reinhold published a word list and method of rolling dice to look up words to make random passwords. Here you can generate passwords using the Diceware word list in the convenience of your web browser. The Diceware website has detailed instructions and security tips such as: Discard any short passwords or passwords that are recognizable phrases. The frequently asked questions has a wealth of information:
The Diceware word list is used here with permission under the Creative Commons CC-BY 3.0 license. Although the contents of the word list have not been altered, it has been reformatted into the JavaScript source code that powers this page.
Password Creator
This password generator is on passwordcreator.org. The home page has a variety of random password styles available.

Suggest Diceware Passwords on Your Website

PasswordCreator.org can power a list of secure randomly generated Diceware passwords on your website. Put a list of suggested passwords on your website near where you ask your users to choose a password.
Security level:

How Secure is Your Password

Diceware

TYPEAverage time to crack based on number of guesses per second
SizePossible combinations1 trillion (expected future capability)100 billion (large distributed system)1 billion (distributed system or supercomputer)100 million (small distributed system)1 million (single computer)

Diceware with Symbols