Key Ghosting Test

Check if your keyboard can register multiple keys without interference.

Back to Keyboard Skills

Ghosting Detector

Press multiple keys simultaneously to see if they all register.

Waiting for key input...

Active Keys

Ghosting Info

Average membrane keyboards ghost after 3-6 keys.

What is Keyboard Ghosting?

Ghosting happens when some keys don't work when multiple keys are pressed simultaneously. This is due to the wiring design in some keyboards. Mechanical gaming keyboards often have "Anti-Ghosting" technology or "N-Key Rollover" (NKRO) to prevent this entirely.

About Key Ghosting Test

"Ghosting" happens when you press two keys (e.g., 'W' and 'A') and a 3rd key you didn't press gets registered, or a 3rd key you *did* press gets ignored. This is a limitation of cheaper membrane keyboards wiring.

### The Test Press common gaming combinations like: * **W + A + Space** (Jump strafe left) * **W + Shift + R** (Running reload) * **Ctrl + Shift + Esc** (Task manager)

If any key doesn't light up on screen, your keyboard has ghosting issues on that "matrix cluster".

Something not working right?

Found a bug or have a suggestion to improve the Key Ghosting Test? Let us know and we'll fix it!