Validating password against minimum length is one thing but some time it’s good to give user a visual clue of how good his password is. So here are 5 Useful jQuery Password Strength Meter Plugins to encourage your users to enter stronger passwords.

Complexify – a jQuery Plugin

Complexify aims to provide a good measure of password complexity for websites to use both for giving hints to users in the form of strength bars, and for casually enforcing a minimum complexity for security reasons.

jQuery Password Strength Meter

Password Strength Meter is a jQuery plug-in provide you smart algorithm to detect a password strength.

Password Validation

This plugin extends the jQuery validation plugin, providing two components: A function that rates passwords for factors like mixed upper/lower case, mix of characters (digits, special characters), length and similarity to a username (optional). A custom method for the validation plugin that uses the rating function to display a password strength meter, requiring the field to have a “good” rating. The text displayed can be localized.

Naked Password

The whole idea of naked password is to encourage your users to enter stronger passwords.

Password Strength

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