Websites have a responsibility to accurately inform users of password strength, both to better secure data, and to educate about users of what constitutes a good password.
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.
This plugin only provides client-side validation, and should be combined with some server-side sanity checking. If you want a full-blown Complexify implementation for the server, check out the list of ports.
For more information, a demo, documentation, and the motivation behind Complexify, visit the website.
Several people have kindly open-sourced their implementations of this algorithm in other languages:
- Mert Dümenci Complexify-Objc
- Andrey Kislyuk node-complexify
- Michael Crumley php-complexify
- Maciej Podsiedlak angular-complexify
This code is distributed under the WTFPL v2 licence.