Test your mouse online
Click each area of the on-screen mouse with the matching physical button. The area lights up when the button registers. Scroll the wheel to confirm both directions, and double-click the body to verify double-click timing. A button that never lights up — or a double-click that fires from a single click — points to a worn switch.
How it works
- Left / Right / Middle: each lights up when that button is pressed.
- Scroll: the readout shows whether the wheel reports up and down.
- Double-click: a clean double-click is detected and confirmed.
Mouse problems? Troubleshooting
Double-clicking on a single click
This is a worn micro-switch — common on older mice. Some software lets you raise the debounce time, but a failing switch usually needs replacing.
Button not responding
- Try a different USB port; for wireless, replace the battery or re-pair the receiver.
- Windows: Device Manager → Mice and other pointing devices → update the driver.
- macOS: re-pair the mouse in System Settings → Bluetooth.
Scroll wheel jumps or skips
Dust in the wheel encoder is the usual cause. Blow compressed air into the wheel gap; check the OS scroll settings are not set to a huge step.
FAQ
Does this track my cursor or clicks?
No. Clicks and scroll events are only used to update the on-screen indicators and are never stored or uploaded.
Why doesn't right-click show a menu?
We suppress the browser context menu over the test area so the right button can be tested cleanly.