Free online tool

Test every mouse button, click interval, scroll wheel and observed movement frequency in your browser.

Private by design

Mouse jitter test online for sensor stability

Use a browser mouse jitter test to inspect pointer direction changes while moving smoothly in a test arena.

Start the mouse test

Move smoothly to spot direction changes

Trace slow circles inside the arena. Rapid direction changes are a visual signal for hand or sensor jitter, not a hardware verdict.

Direction changes0
Move inside this arena0samples captured
Reset and repeat with the same speed

How to test mouse sensor jitter

Direction changes can come from hand movement, sensor tracking, surface texture, wireless interference or browser event coalescing. Use this as a visual comparison, not a sensor certification. Compare jitter with cursor drift: drift changes the path over time, while jitter appears as rapid direction changes during an otherwise smooth movement.