Otherwise your application needs to provide this function.
Passwords need to be stored encrypted in the database or elsewhere and any backups should also be encrypted.
In some cases, such as on mobile devices, displaying the password may improve usability without compromising security.
After all it's only the browser display being obfuscated and not the data transfer.
Consider the following: If you are using a supported browser you can use the form below to test the regular expression: If you want to restrict the password to ONLY letters and numbers (no spaces or other characters) then only a slight change is required.