Output
Held keys; transitions; repeat intervals
Measure time between release and retrigger of a key.
Rapid Trigger Test · At a glance
Quick answer: Measure time between release and retrigger of a key. The browser records state transitions, not the physical distance of a Hall-effect switch.
The test loads when you open it. Device access is requested only after you choose to start.
Detailed guide
Held keys; transitions; repeat intervals
Focused physical key presses
KeyboardEvent.code; keydown and keyup
Runs on your device; no tool-result upload
The tester records browser key-down and key-up events, tracks held keys, and separates operating-system repeats from fresh presses. Short intervals are clues to investigate, not proof of a defective switch.
The browser records state transitions, not the physical distance of a Hall-effect switch. A short interval does not reveal actuation depth.
Use deliberate separate movements first. Keyboard firmware may change when transitions are reported.
System shortcuts and some special keys are intercepted before a web page receives them. USB polling frequency, analog actuation distance and physical rapid-trigger settings cannot be read from keyboard events.
No. Browser key events contain no analog travel measurement. Use the manufacturer tool or a physical instrument for distance settings.
Click the test area to focus it, then press and release the keys you want to inspect. Try simultaneous combinations for a ghosting check.
No. Open the interactive tool above in a modern browser. The instructions and explanations are available even with JavaScript disabled; running a test needs JavaScript.
Power settings, background tasks, browser scheduling, operating-system input processing and device settings affect measurements. Compare repeated attempts with identical settings rather than the single highest score.