All gaming tools
Mouse Scroll Test
Test mouse scroll wheel
Scroll up and down inside the box below. We log each wheel event's deltaY, tally scroll-up vs scroll-down notches, and flag notches whose size varies wildly from the last one — a possible sign of a worn scroll wheel encoder.
Scroll here
Up and down, at your normal pace
0
Scroll up
0
Scroll down
0
Irregular notches