KEYBOARD LABKeyboard tools

Rapid Trigger Test

Observe release and re-press events and their timing while tapping a selected key.

Test workspace

Choose one key and repeatedly press and release it with small movements.

Ready. Select Start.

Select Start, then press keys in this area.

Input is captured only in the test area. Esc, Tab or moving focus to another field or window ends the test. A computer with a physical keyboard is recommended.

Results by key
KeyPressAuto-repeatConsecutive pairsShortest interval
Recent events · up to 80

    Statistics use up to 1,000 recent samples. Input is processed in this tab and is not saved to a server or browser storage. A result file is created only when you choose to save it.

    How to use and read the results

    1. Select the target key.
    2. Start and repeatedly press and release that key.
    3. Compare hold-time samples and release-to-press intervals.

    Example

    A new press reported 25 ms after release gives a 25 ms gap. Finger travel and actuation distance in millimetres are not available.

    How it works

    Separately calculates keydown-to-keyup hold time and keyup-to-next-keydown gap. Automatic repeats do not count as new presses.

    References: MDN · Keyboard events