MD5 hash generator
Joomla admin password recovery
There is no way to recover your Joomla admin or any other user password. You need to reset your password by entering the MD5 hash value of your new password into your MySQL database. You find details instruction on how to do this with phpMyAdmin in the Joomla documentation.
Below is a handy form generating md5 hash values on the fly.
MD5 hash generator
This form is a free MD5 hash generator that of course can be used for any other database driven content management system such as Drupal, Wordpress or Typo3.