Keyboard Ghosting & N-Key Rollover Test
Press multiple keys at once (e.g., W+A+Space) to see if your keyboard registers them all. This is crucial for gaming to avoid missed inputs.
What is Keyboard Ghosting?
Keyboard ghosting happens when you press several keys at once and some of them don't register. This is a limitation of non-gaming keyboards. For example, if you press 'W', 'A', and 'Space' to run, jump, and strafe, a non-gaming keyboard might ignore the 'Space' press.
Our tool helps you see which keys light up and which ones "ghost" (don't light up) when pressed simultaneously.