Click in the area above to check whether your mouse double-clicks on a single press, the classic sign of a worn switch.
Double-Click Test — Detect Mouse Chatter
Test your mouse for double-click problems in the browser. Click freely while we measure the gap between clicks and flag chatter from a failing switch.
How to use
- Click normally. Click the test area with your left button the way you usually do, a dozen times or more.
- Watch the gap. The 'last gap' shows milliseconds between your two most recent clicks. Real clicks are hundreds of ms apart.
- Read the verdict. Any gap under 50 ms counts as chatter. One or more means the switch is likely worn out.
Why test this
A mouse switch is rated for tens of millions of presses, and as it wears the metal contacts start to bounce, sending two signals from one press. That is chatter, and it ruins everyday work as much as games: a single click opens a file twice, drag-and-drop drops early, and in a match one shot becomes two or a tap-fire turns into a burst. The fault is intermittent at first, so it is easy to blame yourself or the software before the hardware is the real cause. Testing puts a number on it. If the switch double-fires under normal clicking here, it will do the same everywhere, which is the evidence you need for a warranty claim or RMA. Catching it early also tells you whether a drag-click habit is wearing the switch faster than usual.
What the results mean
Four figures describe each press. Clicks is how many times you pressed; Chatter counts presses that landed within 50 ms of the previous one. Last gap and Min gap show, in milliseconds, the interval between your two most recent clicks and the smallest gap seen so far. Deliberate clicking leaves hundreds of milliseconds between presses, so a healthy mouse keeps Chatter at zero and Min gap comfortably above 50 ms. Any chatter at all is worth noting; repeated chatter during normal, single clicks means the switch is failing. The verdict line turns from a warning to a green all-clear once you have clicked enough without tripping the threshold. A genuine fast double-click can dip near 50 ms on its own, so judge by whether the count rose when you only meant to click once.
FAQ
- What is mouse chatter?
- Chatter is when one physical click registers as two. It is caused by a worn switch and shows up as very short gaps between clicks.
- How many chatter clicks are a problem?
- Even one is worth noting. Repeated chatter during normal clicking means the switch is failing and the mouse needs repair or replacement.
- Why is my gap sometimes very small even on a good mouse?
- A genuine fast double-click can dip near the threshold. Chatter is unintended: you only clicked once but the counter rose by two.
- Can I fix a chattering mouse?
- Sometimes, by replacing the switch or using contact cleaner. Under warranty, a replacement is the safer choice.
- Is this test free?
- Yes. It runs entirely in your browser, needs no installation, and stores nothing.
Related reading
Related tests
🖱️
Mouse Test — Buttons, Scroll & Double-Click
Test your mouse buttons, scroll wheel, and detect double-click failures in your browser. Free, no installation, and instant results every time.
🖱️
CPS Test — Clicks Per Second Counter
Test how many clicks per second you can hit in the browser. Click as fast as you can over a timed window and see your CPS, total clicks and best score.