- 5/16/2026
- Updated 5/16/2026
How to Test a WASD Chord With a Free Browser Rollover Check
WASD is the fastest sanity check for gaming rollover. Step through a free browser test, read teal/orange/red highlights, and know when to swap hardware.
Start with the WASD preset
Open the rollover lab, select WASD, and press W+A+S+D together with thumbs on space if you use jump.
Teal keys are registered; orange keys in the preset never fired; red means a phantom outside the preset.
Log max simultaneous keys in a notes app when comparing boards. Marketing NKRO is less useful than your measured peak.
Log max simultaneous keys in a notes app when comparing boards. Marketing NKRO is less useful than your measured peak.
Try the rollover test
Hold chord presets like WASD or Space+arrows and watch for missing keys (blocking) or phantom inputs (ghosting). The visual keyboard highlights teal, orange, and red in real time.
Open rollover & ghosting testRepeat on the connection you game with
Bluetooth, 2.4 GHz dongles, and USB can differ. Test the path you use when stakes matter.
Close background macro tools so software is not injecting extra keydown events.
Test the connection you compete on: Bluetooth, dongle, and USB can report different max simultaneous keys on the same model.
End a troubleshooting day with a calm one-minute typing test. Clean chords should translate into stable accuracy, not only pretty highlights.
Escalate only after a clean map test
If WASD passes but a letter in prose fails, run the full keyboard checker for that single key.
Rollover and per-key health answer different questions—run both.
After any chord test, reset the lab and rerun once on a cold start. Sticky OS key states can fake ghosts on the second attempt.
When orange “missing” keys appear, press slower and confirm physical contact—sometimes flex, not rollover, is the culprit.
Continue practicing
This cluster is about simultaneous key presses. Run the rollover lab on your real chords, then confirm every switch still works on the full key map.