Keyboard Hz tester results
Press or hold a key and review the timing panel to estimate browser-visible input frequency.
Local testing only Start testing
Estimate keyboard Hz from browser events.
Keyboard Polling Rate Tester
Use this keyboard polling rate tester to estimate keyboard Hz from repeated key events and check whether your keyboard input feels consistent in the browser.
Browser repeat rate and operating system settings affect this estimate.
Start testingKeyboard Hz estimate
Keyboard Hz estimate
Run the Keyboard Polling Rate Tester
Calculates estimated event rate from keydown intervalsBest used with repeated presses or held-key eventsBrowser and OS repeat settings can affect results
Inspection flow
Inspection flow
1. Full key pass
0/104Press every key in the selected layout until the progress reaches 100%.
2. Ghosting combos
0/4Hold each listed combo and confirm all keys appear together.
3. Chatter 10-tap check
0/10Tap Press a key ten times with normal pressure, then review possible chatter.
W + A + Shift + SpaceW + D + Shift + SpaceQ + W + E + RA + S + D + F
Live status
Test stats
0Tested keys
104Untested keys
0Pressed now
0Max simultaneous
0Possible issues
- Last key
- None
- Currently pressed
- None
Polling rate
Keyboard Hz estimate
0Samples
Press keysEstimated Hz
Press keysAvg interval
Press keysFastest interval
Estimated from browser key event intervals. OS repeat rate and browser scheduling affect this value.
Ghosting test
Rollover check
- Current pressed keys
- None
- Max simultaneous keys detected
- 0
Try common gaming combinations to check for possible ghosting.
W + A + Shift + SpaceW + D + Shift + SpaceCtrl + Shift + EscQ + W + E + RA + S + D + F
Diagnostics
Possible issues
- Possible chatter
- None detected
- Possible stuck keys
- None detected
These are browser-based estimates. Retest a suspicious key several times before treating it as a hardware fault.
Local report
Export results
Keyboard Tester Online Report ============================= Generated at: 2026-05-15T07:32:42.395Z Selected layout: Windows Full-size Browser / OS: Unknown browser on Win32 Tested keys: 0/104 Untested keys: 104 Untested key list: Esc, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PrtSc, ScrLk, Pause, `, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, -, =, Backspace, Ins, Home, PgUp, Num, /, *, -, Tab, Q, W, and 64 more Max simultaneous keys detected: 0 Possible stuck keys: None Possible chatter keys: None Pass / fail checklist --------------------- All layout keys tested: CHECK No possible stuck keys: PASS No possible chatter keys: PASS Multi-key input detected: CHECK Issue summary: 104 layout keys were not tested; multi-key rollover was not meaningfully tested Notes: Browser-based estimate. Some hardware keys, Fn keys, media keys, and system shortcuts may not be detectable.
ChecklistAll keys: CHECKStuck keys: PASSChatter: PASS
How to test keyboard polling rate
Run several repeated key presses in one session, then compare the estimated event rate with the consistency of the intervals.
Polling rate tester keyboard limits
This page estimates browser key event frequency. It does not directly measure USB polling, firmware behavior, or hardware scan rate.
Why keyboard Hz matters for gaming
More consistent input timing can help fast movement keys, shortcuts, and rhythm-sensitive controls feel more predictable.
Compare with latency and rollover tests
If results feel inconsistent, also check latency, rollover, and ghosting to isolate the type of keyboard issue.
Help
Is this a true USB polling rate tester?
No. It estimates keyboard event frequency in the browser and should not be treated as a certified hardware measurement.
Why is the estimated Hz lower than my keyboard spec?
Browser event delivery, key repeat settings, operating system behavior, and the testing method can all reduce the visible rate.