Sometimes users forget passwords and rather than manually resetting them in Joomla admin, you can simply provide them with this link to reset their passwords themselves.

The default link for the password reset page in Joomla 3 and many other versions is:

index.php?option=com_users&view=reset

You simply add that to the end of your website name to navigate to the Joomla user password reset page

Joomla 3 password reset link

http://www.example.com/index.php?option=com_users&view=reset