Summary

Copy your own keys by using the customizer and holding your key up to the computer or mobile screen to check.

Instructions

Select the type of key you have (Look for code on key. Currently only 4 models available).
Select the grip style.
Set the heights for each notch so that it matches your key.
Check your copied key by holding your real key up to the screen.

This works particularly well on mobile devices where you can pinch zoom the screen because you can check the key fairly accurately - An electronic copy in minutes from your mobile!

Easy Key Copier