Keyboard Polling Rate Test
Measures how fast your keyboard's input events reach the browser — press or hold keys in the test area. Supports gaming keyboards up to 8000 Hz where hardware and browser allow.
Click here, then spam two keys back and forth (e.g. A and S) as fast as you can.
Near-simultaneous presses reveal the true polling interval — the faster you alternate, the more accurate the reading.
Input frequency — live
Hz over timeWhat does this keyboard test measure?
Typing speed alone can't reveal polling — the time between normal keypresses is human rhythm, not hardware. Instead, this tool looks at what happens when you alternate two keys so fast that their events land almost on top of each other: those near-simultaneous events arrive spaced by the keyboard's true polling interval (1 ms at 1000 Hz, 8 ms at 125 Hz), and that timing quantum is what we detect. OS auto-repeat events are filtered out automatically.
True hardware polling (up to 8000 Hz on modern gaming boards) can be batched by the OS and browser, so treat this as a lower-bound sanity check: laggy or inconsistent numbers here usually point to software problems — the kind a DQT optimization session hunts down and fixes.