Example
With a 250 ms threshold, two A presses 180 ms apart count as one pair. Automatic repeat does not count as a pair.
KEYBOARD LABKeyboard tools
Keyboard Double-Press Test
Measure intervals between consecutive presses of the same key and find pairs within your threshold.
Test workspace
Press the same key twice. The time between the two presses is recorded.
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.
| Key | Press | Auto-repeat | Consecutive pairs | Shortest 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
- Choose the interval used to detect a consecutive pair.
- Start and repeatedly press and release the same key.
- Review the detected pairs and press intervals.
How it works
Compares consecutive keydown timestamps for the same key with a keyup between them. Three presses can form two adjacent pairs.
References: MDN · Keyboard events