Check whether one physical press is unintentionally detected twice by analyzing timing intervals.
This page shows raw timing intervals. Use the guided flow to reduce user-rhythm effects and compare suspicious results with a control key.
Press and release the same key normally. The tool flags a new keyup event on the same key when it occurs unusually soon after a keydown event. Operating-system key-repeat events are filtered separately. This browser test cannot precisely measure firmware debounce behavior.
An occasional short interval does not prove a fault. Repeated, consistent short intervals on the same key strengthen the chatter suspicion.
The threshold can vary with keyboard type, operating system, and user rhythm. The result is not a professional oscilloscope measurement.
The test runs in your browser. Supported history and report data in this version is stored locally in your browser using localStorage.
Keyboard chatter is when one physical press unintentionally produces multiple key events.
At least a few dozen normal presses on the same key produce a more meaningful result.
No. A repeated pattern is more meaningful than one isolated event.
