Mouse Diagnostics

Test left, right, and middle clicks, scroll behavior, and live mouse polling rate with an in-browser mouse diagnostic tool.

How to interpret this mouse test

Consistent button lighting and stable scroll events usually point to a healthy switch and encoder path.

Polling spikes and sudden drops can still be caused by surface quality, USB hubs, power management, or browser sampling limits rather than the sensor alone.

What to try next if something looks wrong

Move to the double click test if one button feels unreliable, then confirm the mouse on another USB port or another computer.

If only motion rate looks unstable, test on a clean pad and disable USB power saving before assuming the sensor is failing.