How to use the Mouse Double-click Test
Choose a threshold close to your operating-system double-click setting, then click slowly inside the target. Test each button separately and produce several dozen deliberate single clicks. Repeat after changing USB ports or connection type so a radio or hub issue is not confused with switch wear.
How to interpret your result
Each pair is compared by the interval between pointer events. Repeated flags during slow single clicks are stronger evidence than one fast intentional pair. Track the number of flagged pairs and the typical interval; a cluster near zero often suggests switch bounce.
Important limitations
The page sees browser pointer events rather than the raw electrical signal. Touchpads, accessibility settings, browser load, and OS thresholds can change the pattern. It cannot measure click force, debounce firmware, or failures that occur only in a particular game or desktop application.
Troubleshooting checklist
Clean the button area without applying pressure, then test another browser and a wired connection. Check the system double-click speed and disable software that remaps buttons. If the issue follows the mouse across devices, save the timing results and check warranty options.
Practical use cases
Use this test before replacing a mouse that opens files twice or selects text unexpectedly. IT support can reproduce a user complaint with a common threshold. Competitive players can distinguish accidental double-clicks from intentional rapid clicking before adjusting debounce settings.
Try the live tool
Frequently asked questions
How many flags indicate a bad mouse?
There is no fixed cutoff, but repeated flags during slow, deliberate single clicks are a meaningful warning sign.
Should I change the threshold?
Use a threshold near your operating-system setting for diagnosis; changing it changes what the test calls a double-click.