Keyboard Tester
Press each key and watch it light up. Tested keys stay marked, so missing ones stand out.
Press any key
Pressed keys light up below and stay marked once tested.
This tool runs entirely in your browser. Nothing you add is uploaded to any server.
Last checked: · Made by Fingertip Workshop
How to use
- 1
Press keys one by one.
- 2
Tested keys stay highlighted.
- 3
Hold several keys to see max rollover.
- 4
Keys that never light up need a closer look.
Rollover and ghosting
Rollover is how many keys register at once — office keyboards manage 2–6, gaming boards often all. Ghosting is when combinations drop keys. Fn keys never reach the computer, and some OS keys may be intercepted.
FAQ
Are my keystrokes recorded?
No. Nothing is stored or sent.
Laptop keyboards?
Yes — the numpad will just stay empty.
A key types twice.
That's chatter, usually dust or a worn switch.