This online mouse test checks that every button on your mouse works and that clicks register the way they should. Left, right and middle buttons each get a live indicator that turns on while the button is held, so you can confirm a clean press and release. It also counts double-clicks and shows scroll-wheel direction, which makes it easy to diagnose the two most common mouse faults: a worn switch that double-fires and a wheel that scrolls the wrong way or skips.
Double-click chatter is one of the most frequent mouse problems. As the micro-switch inside a button wears out, a single physical press can register as two clicks, which breaks drag operations and misfires in games and design tools. To check for it, click slowly and deliberately and watch the click counter: if a single, clearly separate press ever registers as a double-click, the switch is starting to fail. The test also reports the time between clicks so you can see how your own double-click speed compares to the system threshold.
The scroll test tracks each wheel notch and shows the direction and a running delta, which is useful when a wheel feels unreliable. If scrolling up sometimes jumps down, or a notch does nothing, the encoder in the wheel may be dirty or worn. Middle-click, triggered by pressing the wheel itself, gets its own indicator because it is easy to overlook and is a common casualty of heavy use. Right-click is captured too, and the page suppresses the context menu inside the test area so your click is measured rather than opening a menu.
Everything runs locally in your browser using standard pointer and mouse events, so nothing about your clicks is uploaded. That makes this mouse checker a quick, private way to decide whether a flaky mouse needs cleaning, a new switch, or replacing altogether, and to confirm a used mouse works fully before you rely on it.
How to use the mouse test
- Move your pointer into the test pad so it captures your input.
- Click the left, right and middle buttons and watch each indicator light up.
- Double-click and check that the counter reports a single double-click, not extra clicks.
- Scroll up and down to confirm the wheel direction and step count.
- Look for any button that sticks on, fails to register, or double-fires.
Frequently asked questions
How do I test for mouse double-click chatter?
Click slowly and deliberately inside the test pad and watch the counter. If a single clean press ever registers as two clicks, the button switch is likely worn and chattering. Repeating the test a dozen times gives you a reliable picture of how often it misfires.
Why does my scroll wheel scroll the wrong way?
Reversed scrolling is usually a system setting, often called natural or reverse scrolling, rather than a hardware fault. The test shows the raw wheel direction, so if it matches your physical motion here but feels reversed elsewhere, check your operating system scroll settings.
Can I test the middle mouse button?
Yes. Press down on the scroll wheel itself and the middle-button indicator will light up. Middle-click is a common failure point on older mice, so it is worth checking even if the left and right buttons feel fine.
More hardware tests
Keep checking your gear with the rest of the MyGearCheck suite: