Double Click Test
A mouse double clicking test. A mouse that double-clicks by itself has a worn switch that bounces. Pick a button and click it 30 times at a normal pace: the page flags any second click that came faster than a finger can click, shows the gap, and checks whether a held button briefly lets go (dropped drags). Works for left, right, middle and side buttons.
1. Test
Click, hold and scroll inside this box.
| button | clicks | shortest gap | double-clicks |
|---|
Click each button a few times inside the box: left, right, the wheel (middle), and the two side buttons if your mouse has them. The right-click menu and back/forward navigation are blocked while the test runs.
Advanced
2. Result
Is it the mouse or the computer?
Save the JSON here, run the test again with the mouse on another computer or USB port, then load the first file. If the same problem shows up on both, it follows the mouse.
In this browser
About the Double Click Test
How to use it
- Press Start test. The Double-click & hold tab is already open.
- Click the button you want to check once inside the test area to choose it.
- Keep clicking it at a normal, steady pace until the counter reaches 30. Don't double-click on purpose.
- Run the 5-second hold check on the same button if drags or text selection keep letting go.
- Press Check another button to test the next one, then copy or save the summary.
What this page focuses on
- Guided 30-click check per button with a verdict and the shortest gap as evidence.
- Hold check: hold a button for 5 seconds and see whether it released by itself, the cause of dropped drags and broken highlighting.
- Warns when your own clicks were too fast to judge, so a real double-click is never reported as a fault.
- Adjustable threshold and a saved result for warranty claims or to compare against another computer.
Reading your result
- No unintended double-clicks: No click followed the previous one faster than the threshold, 50 ms by default.
- Possible double-click fault: A second click arrived too soon. The shortest gap is shown; gaps under about 20 ms are almost always switch bounce.
- Released by itself while held: During the hold check the button let go and pressed again without you moving your finger. That is what drops drags in games and file managers.
Why does my mouse double click?
The switch under the button wears out and bounces, sending two clicks for one press. It is common on mice a few years old. Cleaning rarely helps; replacing the switch or a warranty claim does.
Can Windows cause double clicking?
Windows' 'single-click to open' setting and some mouse software can make clicks behave oddly, but they do not create extra clicks a web page sees. If this test catches them, it is the mouse.
What gap counts as a fault?
Deliberate double-clicks are usually slower than about 80 ms between clicks. Switch bounce is typically under 50 ms, which is the default threshold here.
What a browser cannot test
Extra buttons beyond back/forward are usually handled by the mouse's own software (this page shows it when they are mapped to keys). Firefox often does not report side buttons to pages. No web page can measure click latency, sensor DPI or the true polling rate; the event rate shown is a lower bound.
Privacy
The test runs entirely in your browser. Nothing you press is uploaded, and nothing is saved after you close or refresh the page. Saved files are created on your device and only go where you send them.