[nobodysfool2]

Yup, similar to SQRL, and here are implementations of it...

https://www.grc.com/sqrl/implementations.htm

Wordpress, Android, .Net Client, Node, PHP, Ruby, Windows Phone, and Haskell. Unfortunately, having people download an app to login to your website kind of ups the bar a little. Still, they can just scan the code with their phone as well.