Test your password : The Password Meter
The How secure is mypassword website shows a different approach about how to manage safe passwords.First of all you have to generate a safe password , then analyze this password in the How secure is mypassword website . The result will be an estimated time to crack the password.
How It Works
It's just a bit of simple maths: (number of possible characters to the power of length of the password) divided by calculations per second. Currently this site will only check against the 13 most common symbols in English:
! @ # $ % ^ , & * ? _ ~ -
Any other symbols will be ignored.
Link : How secure is mypassword