Mouse Double-Click Test
Check your mouse for unwanted double-clicks and switch chatter in seconds.
Click inside the box below with normal, single clicks — left, right, and middle (wheel). The tool times the gap between presses of the same button and flags any repeat too fast to be human as a likely double-click switch fault.
Ready to test
Single-click the pad below with each mouse button. We measure the gap between clicks and flag any repeat faster than 80 ms.
Single-click each button with your normal clicking rhythm. This tool measures the time between presses of the same button and flags any repeat that is faster than a human can click — the clearest sign of a failing mouse switch. Best used on a desktop with a mouse.
Want to check every button and the scroll wheel? Try the all-in-one Mouse Tester.Mouse Double-Click Test Guide
What is the Mouse Double-Click Test?
The Mouse Double-Click Test is a free online tool that detects when your mouse registers a single physical press as two clicks. It records the exact time between consecutive presses of the same button and flags any repeat that arrives faster than a person could deliberately click. That kind of unwanted repeat — known as chatter or a double-click fault — is one of the most common ways a mouse fails, and this test makes it easy to confirm with precise click detection and a detailed event log.
How to Use the Test
- 1. Pick a fault sensitivity — 80 ms is the recommended default for most mice.
- 2. Click inside the test box with normal, deliberate single clicks.
- 3. Repeat with the left button many times, then the right and middle (wheel) buttons.
- 4. Watch the live gap readout and the event log for any red “FAULT” entries.
- 5. Read the verdict and per-button results, then press Reset to start over.
How the Detection Works
Every time you press a button, the tool reads a high-resolution timestamp and subtracts the time of your previous press of that same button. A real, deliberate double-click is usually 100–300 milliseconds apart. A failing switch bounces electrically and fires the second click far faster — often in under 30 ms. Because no human finger can move that quickly, any same-button repeat below your chosen threshold is counted as a fault rather than a genuine double-click.
Reading the Results
| Reading | What it means |
|---|---|
| OK | A normal click, well clear of the fault threshold. |
| FAULT | A repeat faster than your threshold — a likely switch fault. |
| Fastest Gap | The shortest interval seen — the lower it is, the more suspect the switch. |
| Per-button verdict | Each button is marked OK or FAULTY independently. |
What Causes Double-Click Faults?
The culprit is the micro-switch beneath each mouse button. Over millions of clicks its springy metal contact weakens and starts to bounce, so a single press makes and breaks contact several times in a few milliseconds. Dust, humidity, and oxidation speed this up. The result is files opening when you meant to select them, dragged items being dropped, and double shots in games. The fault almost always gets worse over time, so it is worth confirming early.
When to Run This Test
- • When single clicks sometimes open files or register twice on their own.
- • When items get dropped mid-drag or text selection keeps breaking.
- • Before buying a used mouse, or after receiving a new one.
- • When a warranty claim needs evidence of a clicking fault.
- • After cleaning or re-soldering a switch, to confirm the fix worked.
Frequently Asked Questions
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