How to use it
- Press left, right, and middle buttons inside the test area.
- Try Back/Forward side buttons if your mouse has them.
- Scroll the wheel up and down.
- Confirm the counters and last detected event change.
Mouse Button and Scroll Test
Check left, right, middle and side buttons, plus scroll direction and wheel events.
Left click0
Right click0
Middle click0
Scroll events0
Clearer result
Open guided check →Is a button never detected?
Report the suspect button, then use a working control button to confirm the test area is actually receiving mouse input.
Try mouse buttons and the scroll wheel here
Last button—
Scroll direction—
Extra button 40
Extra button 50
How to interpret the result
If a button is never detected, investigate the button, driver, or connection. Reversed or inconsistent scroll direction can increase suspicion of an encoder issue.
Test limitations
The browser may not expose some manufacturer-specific extra buttons as separate events.
Privacy
The test runs in your browser. Supported history and report data in this version is stored locally in your browser using localStorage.
Frequently asked questions
Can mouse side buttons be tested?
Yes, if the browser exposes them as standard button events. Inside the test area, Back/Forward side-button navigation is blocked; outside the test area, normal browser navigation is preserved.
Why doesn't right-click open the context menu?
The context menu is blocked inside the test area so the right-button event can be measured directly.
Important: Testarya results are based on input events observed by the browser. They should not be treated as definitive electronic diagnostics or a professional service report.