Create strong passwords with Password Meter
For example, the more characters you include, the higher your score. The same goes for the type of characters. If you use upper and lower case letters, numbers, and symbols, you're probably in good shape. You'll be docked points if you use just number or just letters, and if you repeat characters you're docked more points.
If you've got too much free time on your hands, you can use another tool we previously covered, Strong Password Generator to create secure passwords and then enter them into the Password Meter to see how they fare. But good luck actually remembering the random passwords created by Strong Password Generator.