**See how to use Password Score by having a look on several Strength Meters for Twitter Bootstrap.**

**Enter a password or click on one of the common passwords below**. Password Score will give a realistic estimation of its strength expressed in entropy. Let $h$ be the entropy of the password, then a cracker does not need to try more than $2^h$ different passwords before finding the correct one.

qwerty password test1234 admin123 letmein 87654321 87654321 elliotsmith asdfqwer 777777 password1 liverpool qwerty12 office kristina qwertyuiop Bangladesh Greenland Germany Berlin Hannover Cambridge computerscience ilovecomputerscience ichliebeinformatik qwertyuiop Bangladesh !$Gr33nland123 !G3rm4ny223 B3rl!n CoMpUtErScIeNcE qayxswedcvfr 123698745

**Password Score** is designed to estimate the strength of a password as realistic as possible. The strength of a password will be expressed in the means of entropy. When given the entropy of a password the time to crack can easily be calculated. For giving a realistic estimation Password Score searches the password for patterns like english words, common passwords, names or even keyboard patterns.

Password Score is no graphical strength meter - it only provides a javascript library to estimate the strength of passwords expressed in entropy.

Password Score is available on GitHub and an introduction can be found here

© 2013 - 2014 David Stutz - BSD 3-Clause License