Example
Left and right Shift are shown separately. Hold A, S and D together to check whether all three are received.
KEYBOARD LABKeyboard tools
Keyboard Tester
See pressed keys, previously tested keys and simultaneous input on a keyboard diagram.
Test workspace
Start and press each key. Green means currently held; pale blue means tested at least once.
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
- Start and keep focus in the test area.
- Try letters, numbers, arrows and the numeric keypad.
- Review tested keys and peak simultaneous input.
How it works
Positions use KeyboardEvent.code. Common QWERTY positions are shown on the diagram; additional reported keys are listed separately.
References: MDN · Keyboard events