Mouse Button Test

Check every mouse button and the scroll wheel.

Loading Mouse Button Tester…

How to use Mouse Button Tester

Press each mouse button in turn: left, middle, right, then the side buttons.
Scroll the wheel up and down.
Every button and wheel direction that registers stays lit on the diagram.
A button that never lights up is not being reported, which points to a worn switch or a driver setting.

About Mouse Button Tester

Confirm every button on your mouse and the scroll wheel are working. Press buttons on the pad and they light up on a mouse diagram and in the legend; detected buttons stay highlighted, and scroll ticks and double-clicks are counted.

Left, middle, right and the two side (back/forward) buttons are all tracked, and the right-click context menu is suppressed so testing stays smooth.

What people use it for

Verify all five buttons and the wheel on a new or used mouse.
Check that side (thumb) buttons are recognized by the browser.
Confirm the scroll wheel reports both directions.

Frequently asked questions

Why don't my side buttons light up?

Many mice and most trackpads don't expose back/forward to the browser, or they're mapped to navigation. If they never register here, the page simply isn't receiving them.

Does it test the wheel?

Yes. Scrolling over the pad registers up/down ticks and lights the wheel on the diagram.

Is it private?

Every calculation happens on this page, in your own browser. Your input is never sent to a server and never logged, which also means the tool keeps working when you are offline.