WordPress.org

Based on Show Password, a simple jQuery-plugin by Andreas Lagerkvist. By adding a "Show Password" checkbox on the WordPress Login Screen users can decide whether they want their password field masked or not.

"Usability suffers when users type in passwords and the only feedback they get is a row of bullets. Typically, masking passwords doesn’t even increase security, but it does cost you business due to login failures." – Jacob Nielsen, Stop password masking.