HashMask puts a visualization of your passwords in front of you. 

HashMask works by letting you see the password you enter in a sparkline format to help you remember it. It works by putting the sparkline of the current password in front of you when you enter it into the site. If you don't remember this key, it will also help you remember all the ones you enter into that site. You can choose to remember one or all of the sparklines you use.

The sparkline is the visual representation of the password. It can be either horizontal or vertical.