Mouse button chatter test: online debounce checker

Test mouse button debounce and switch chatter by measuring press duration and the gap between releases and the next press.

Start the mouse test

Check switch debounce with press duration and release gaps

Press and release the test button at a normal pace. Very short gaps between releases and the next press can reveal a double-clicking or chattering switch.

Suspect gaps0

Flag gaps under

Presses 0Last press duration —Threshold 80 ms

Short gaps are a clue; retest on another port or computer

What is mouse button chatter in a double-click test?

How to confirm chatter across browsers

Use a comfortable pace first, then repeat the same button for at least twenty presses. A short release-to-press gap is a useful clue when a single physical press turns into two browser events. Confirm the pattern in the double-click test and on another USB port before replacing the mouse. Repeat the same button chatter test in a second browser to separate a worn switch from a browser or driver setting.