About Mouse Button Tester
A focused set of mouse checks, built to make the next troubleshooting step clearer.
A small, independent utility
Mouse Button Tester checks the mouse input your browser receives. It is not a mouse manufacturer, repair service or certified diagnostic laboratory. The tools run in your browser without an account or software installation.
Evidence you can compare
Every completed result states the observation and its limits. Your ten most recent results for each test stay in this browser when storage is available. You can save an image or copy the text to discuss a symptom with someone else.
Keep the task simple
The site focuses on buttons, unwanted repeat clicks, wheel input and physical-distance mouse DPI estimates. It does not change drivers or firmware, make macros, compare game sensitivities or sell mouse recommendations. No ads or affiliate links are active.
Related mouse tests
Return to Mouse Test to start another check.