Virtually all web apps nowadays have support for masked inputs. Not quite sure why Telerik Blazor does not, but requesting it, since I can't really go live without it.

Ideally it should also work using data annotations on the model class using [DataType(DataType.Password)]. This way I don't have to specify the form fields and can just rely on the auto-generated form (like I am doing now). I have a lot of forms that have passwords, so it would be annoying to have to specify the fields for all of them.