SpeedXG
Keyboard Test
Tap keys and watch them light up. Use this keyboard test to find dead keys, ghosting, or a stuck modifier.
Click this panel, then press keys. Held keys stay lit. 0 unique keys seen.
Waiting for a key…
How to test a keyboard
Click the page, then press every key you care about — letters, modifiers, arrows and function keys. A working key highlights. If a key never lights, it is hardware, firmware, or a language layout mismatch.
N-key rollover
Hold several keys at once. Cheap membranes often drop the third or fourth key. Gaming boards with NKRO keep more keys visible here.
FAQ
Why does a key show the wrong character?
OS layout (QWERTY vs AZERTY) maps physical keys to characters. The event code is still the hardware key.
Does this keyboard test work on a laptop?
Yes. Fn-combos depend on the vendor and may not appear as separate keys.