How to make passwords case insensitive? it appears as passwords in Drupal 7 are case sensitive. Is there a way to make them case insensitive?
The password is stored as a hash, upper/lowercase differences result in a different hash. 

The only possible way I can think of is if you always convert the password to upper/lowercase before it is used, both when registering and when logging in. But that sounds error prone to me.

Also, if the passwords are already stored in the database, then there is no way to do it.