SimplytheBest Password Strength Scripts

The simply the best collection of password strength scripts

A plugin for Twitter Bootstrap that provides rulesets for visually displaying the quality of a user's typed in password.

zxcvbn By: Dropbox
Free Dropbox

A JavaScript password strength estimation library. Use it to implement a custom strength bar on a signup form. It attempts to give sound password advice through pattern matching and conservative entropy calculations.

Bootstrap Strength Meter By: David Stutz
Free BSD-3 Clause

Bootstrap Strength Meter uses Password Score to give a realistic estimate of the strength of a password.

This plugin shows the strength of you passwords by telling you how long time it would take to brute force them.