Watch one physical press
Click once at a steady pace. If the counter repeatedly advances twice from one deliberate press, note when and where it happens.
Local browser diagnostic
Check for unwanted repeat clicks, compare click intervals, and test every major mouse input from one focused browser workspace.
Private session
Live anomaly feedback
Diagnostic workspace
Local session · no event uploads
Measure click intervals and flag very short repeat events.
Open detailed guideReady for input
Start with deliberate single clicks. The tester will compare timing without making a hardware diagnosis.
Pairs at or below this interval are counted.
Browser signal: No dblclick signal yet
Last click detail:0
A useful double click tester records repeat behavior without deciding that a device is broken. Look for patterns across several controlled attempts.
Click once at a steady pace. If the counter repeatedly advances twice from one deliberate press, note when and where it happens.
Very short intervals can indicate an unintended repeat. Longer intervals may simply reflect normal manual double-clicking.
Compare this result with file selection or another trusted application before drawing conclusions about hardware.
Repeated clicks can come from more than one source. Common possibilities include switch wear, dust around the mechanism, moisture, wireless instability, accessibility settings, or application-specific behavior.
A browser test observes events delivered to the page. It cannot inspect the electrical switch or isolate every driver and operating-system factor.
A practical starting threshold is 500 ms, but comfortable double-click speed varies by person and system settings. Lower values demand faster pairs; higher values accept slower pairs. Adjust the slider to compare behavior rather than treating one number as a universal pass or fail line.
Reset the tester, then make deliberate single clicks in the test area. Watch whether one physical press repeatedly produces two counted clicks or unusually short intervals. Repeat the test in another browser or app before diagnosing the mouse.
Possible causes include switch wear, contamination, wireless instability, driver or accessibility settings, and application behavior. This test shows browser events but cannot identify the physical cause by itself.
Many systems use a window in the few-hundred-millisecond range, but there is no universal value for every person or operating system. Start near 500 ms and adjust it to match your normal clicking rhythm.
A browser can provide a useful estimate from pointer event timing, but scheduling, drivers, the operating system, display refresh, and browser behavior affect the result. It is not the same as dedicated hardware measurement.
Open the Scroll Wheel Test, place the pointer inside its test area, and scroll vertically and horizontally. The page reports direction, delta values, event count, and recent activity.
More diagnostics
Use each focused test to compare click, button, wheel, and movement behavior without uploading event data.