Crack MD5 passwords with JavaScript Web Workers Posted by deadbea7 on Monday December 24, 2012 @07:01PM from the github.com dept. https://github.com/feross/md5-password-cracker.js ( 1 comment | 11 points | on HN )
To be able to get 1000 users to crack password, you need to install a software on 1000 computers.
With your javascript breaker, you can load it in frame on your webpage, and have thousands of your users cracking it.