Mouse test
Click each button and scroll inside the box. Every press, release and wheel step is counted separately, so you can tell a button that never registers from one that does not release.
Ready: click each button inside the box.
Click, hold and scroll inside this box. Right-click, middle-click and back/forward are captured only here.
| Button | State | Presses | Releases | Shortest gap |
|---|---|---|---|---|
| Left | not pressed | 0 | 0 | — |
| Right | not pressed | 0 | 0 | — |
| Middle (wheel click) | not pressed | 0 | 0 | — |
| Back (side 4) | not pressed | 0 | 0 | — |
| Forward (side 5) | not pressed | 0 | 0 | — |
- Wheel up
- 0
- Wheel down
- 0
- Tilt / horizontal
- 0
Last wheel event: —
Event log (last 60 events)
| ms | event | detail |
|---|
How to test your mouse
- Move the pointer into the dashed box.
- Click the left, right and middle (wheel) buttons, then the two side buttons if your mouse has them. Each turns orange while held and green after release.
- Scroll up and down, and tilt the wheel sideways if it supports that.
- Hold a button down for a few seconds and release it to check that it does not let go on its own.
Inside the box, right-click menus, middle-click scrolling and back/forward navigation are switched off so they can be tested. Everywhere else on the page they work as usual.
Reading the result
- Presses and releases match: the button works electrically.
- More presses than you made: look at the shortest gap. Two presses only a few milliseconds apart from a single click can point to a worn switch ("double clicking"). It is a sign worth re-testing, not proof on its own.
- No presses on a button you clicked: the signal does not reach the computer, or the mouse software has remapped or disabled that button.
- Wheel: each notch normally produces one event in the direction you scrolled. Events in the opposite direction while you scroll one way are a typical sign of a worn wheel encoder. The unit (pixels, lines or pages) depends on your system and mouse driver.
Limits
- Extra buttons beyond the fifth, DPI buttons and profile switches are usually handled by the mouse or its software and are not visible to a browser.
- Touchscreens and pens are not mouse buttons; the test ignores them. Touchpad clicks do count.
- The page cannot measure sensor accuracy, DPI or polling rate directly; those need dedicated tests that estimate them.
Questions
Why do the side buttons not register?
Many mice need their own software for side buttons to send standard back/forward signals, and some apps remap them. If they register here but not in a program, the program's settings are the cause.
My mouse double-clicks on its own. Can this test prove it?
It can show it happening: click once, slowly, many times and watch the press count and the shortest gap. Repeated very short gaps on single clicks are a strong hint. A software double-click setting can also cause it, so check that first.