Mouse Tester

Exercise mouse controls

Move the pointer inside the test area and use the main, middle, secondary, back, forward, wheel, and double-click actions available on your device. Counters and the latest detected action update locally.

What the browser reports

Pointer events identify a standardized button number when a press reaches the page. The main button is normally zero, middle one, secondary two, back three, and forward four. Operating-system settings can swap logical main and secondary actions, so these names describe browser meaning rather than the switch's physical side.

Worked example

Press the wheel inside the test area. The latest button should read Middle and the click count should increase. Roll upward and the wheel result should read Up. Two quick main-button presses should trigger the double-click message if they fall within the operating system's configured double-click interval.

Diagnosing intermittent behavior

Repeat a suspect action several times. A missing event can indicate a worn switch, wheel encoder, wireless interruption, driver mapping, application interception, or simply moving outside the test surface. Compare another browser, USB port, computer, or pointing device before deciding hardware is faulty.

Movement and wheel counters

The movement number counts delivered pointer-move events, not physical dots, sensor DPI, polling rate, distance, or precision. Browsers may combine hardware reports before dispatch. Wheel direction follows the largest reported axis and does not measure exact mechanical detents. Trackpads can emit wheel-like events for gestures even though no wheel exists.

Privacy and limitations

The test uses browser events only inside the visible area. Nothing is uploaded or saved. The page cannot measure click latency, debounce time, polling frequency, sensor acceleration, lift-off distance, battery health, radio quality, firmware, or button force. It does not replace manufacturer diagnostics or an external high-speed measurement setup.

Mouse Tester FAQ

Why does Back leave the page?

Some browsers reserve navigation buttons before page code can prevent their action.

Can I test a trackpad?

Basic clicks, movement, and scroll gestures may appear, but multitouch details are not inspected.

Does the move count equal polling rate?

No. It counts browser-delivered events, which can be combined or limited.