keyboard test
NKRO Keyboard Test
Check how many simultaneous key presses your browser receives.
No accountLocal where possibleRetest anytime
Press keys now
Active keys turn green. DeviceOK uses browser keyboard events; some system-reserved keys may not be exposed.
EscapeF1F2F3F4F5F6F7F8F9F10F11F12`1234567890-=⌫TabQWERTYUIOPBracketBracket\CapsASDFGHJKL;'EnterShiftZXCVBNM,./ShiftCtrlMetaAltSpaceAltMetaCtrlUpDown
Keys seen0
Currently held0
Max simultaneous0
Chatter flags0
Private by design
Test input is processed in your browser where possible.
Use the result as evidence, not a guess.
This test checks
- Simultaneous keys
- Rollover count
How to read it
A passing browser test confirms that the browser can observe this input/output path.
A failing test narrows the issue but does not by itself prove physical hardware failure.