Double-Click Test
Click slowly, one press at a time. Every click logs the gap in milliseconds since the last one, and any gap under 60 ms is flagged as an unintended double — the classic sign of a failing switch.
Click the pad below slowly, one deliberate click at a time. Each click logs the time since the previous one. Any gap under 60 ms is flagged as an unintended double — a sign of a worn switch.
How to test for double-clicking
- Click the pad deliberately and slowly — one clear press, then wait, then the next.
- Watch the log. Each click shows the time in milliseconds since your previous click.
- A healthy switch produces gaps of hundreds of milliseconds when you click slowly. If a single physical press produces a gap under 60 ms, the switch fired twice on its own and the click is flagged.
- Do 20–30 slow clicks on each button. Even one or two flagged doubles points to a worn switch.
Why mice start double-clicking
Inside each button is a mechanical micro-switch with a thin metal contact. Over millions of clicks the contact oxidises and loses tension, so a single press can "bounce" and register as two. This is the most common mouse failure, and it usually appears after a year or two of heavy use. It is a hardware problem — no amount of clicking technique causes it, and no driver setting truly fixes it.
How to fix a double-clicking mouse
- Contact cleaner: a drop of electrical-contact cleaner in the switch, worked in by clicking, often revives it for a while.
- Increase the debounce time: gaming mice with software (Razer, Logitech, Glorious) let you raise the debounce delay, which masks short double-fires.
- Replace the switch: the permanent fix. Optical or Hall-effect switches do not suffer contact bounce at all.
- Warranty: if the mouse is under a year or two old, many makers replace double-clicking units — check your manufacturer's policy.
For step-by-step fixes, see our guide on how to fix mouse double-clicking, and the deeper background in why optical and Hall-effect switches avoid it.
Frequently Asked Questions
How do I know if my mouse is double-clicking?
Click this pad slowly, one press at a time. If any interval registers under 60 ms while you are clicking deliberately, the switch fired twice on its own — that is a double-click fault.
What interval counts as an unintended double?
A deliberate slow click leaves gaps of hundreds of milliseconds. A genuine double-click fault produces gaps under about 60 ms from a single physical press, which this test flags automatically.
What causes a mouse to double-click?
The metal contact inside the mechanical switch oxidises and loses tension over millions of clicks, so one press bounces and registers twice. It is normal wear, most common after a year or two of use.
Can I fix a double-clicking mouse without replacing it?
Sometimes. Electrical-contact cleaner in the switch or raising the debounce time in your mouse software can help temporarily. Replacing the switch — ideally with an optical or Hall-effect type — is the lasting fix.
Does double-clicking affect my click speed tests?
Yes. A faulty switch inflates your clicks-per-second score and causes misclicks in games. Fix the double-click before trusting a CPS result.
Is the double-click test accurate?
It uses a high-resolution timer to measure the exact gap between mouse-down events, so it catches bounces down to a millisecond. Test each button with 20–30 slow clicks for a reliable verdict.