Mouse Button Tester
Test every mouse button — left, right, middle, back and forward — plus double-clicks and the scroll wheel.
Press every mouse button here, and scroll.
Pointer: —
0 of 5 buttons tested
| Button | Clicks | Status |
|---|---|---|
| Left | 0 | Not tested |
| Middle (wheel click) | 0 | Not tested |
| Right | 0 | Not tested |
| Back (side) | 0 | Not tested |
| Forward (side) | 0 | Not tested |
- Scroll up
- 0
- Scroll down
- 0
- Double-clicks
- 0
- Fastest gap
- —
Recent events
- No mouse events yet.
How it works
Move the pointer into the grey box and press every button on your mouse: left, right, the scroll wheel click, and the two side buttons (back and forward) if you have them. Each press lights up the matching part of the mouse diagram and increases its click counter, so a button that never registers — or one that fires twice from a single press — is easy to spot. Rolling the wheel counts scroll steps up and down, and the double-click test shows how many milliseconds passed between the two clicks the browser paired together.
The tester listens to the browser's own mousedown, mouseup,
dblclick and wheel events, so it reflects exactly what your apps and
games receive. Everything runs in your browser with plain JavaScript — nothing is uploaded,
nothing is recorded, and there is no software to install. Use Copy results or Download to
attach a report to a warranty claim or support ticket.
Frequently asked questions
How do I test if my mouse buttons are working?
Move your pointer into the test area and press each button once. Left, right, middle (wheel click) and the two side buttons each light up on the mouse diagram and increase their click counter. Any button that stays on "Not tested" after you press it is not reaching the browser, which usually means a faulty switch, a broken cable or a driver problem.
Why is my mouse double-clicking on a single click?
A worn micro-switch bounces and sends two press/release pairs from one physical click. Click the left button once in the test area: if the counter jumps by two instead of one, or the double-click counter fires without you double-clicking, the switch is failing. The measured double-click interval — often under 50 ms for a bouncing switch — is good evidence for a warranty claim.
Does this mouse tester check the scroll wheel and the side buttons?
Yes. Rolling the wheel counts scroll steps up and down separately, clicking the wheel registers as the middle button, and the back and forward side buttons are tracked as their own rows. Everything runs client-side in your browser, so there is nothing to install and no data is uploaded.