Use the tester above to check every button, the scroll wheel, and double-click behavior on your mouse.
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.
How to use
- Click each button. Press left, right, middle, and side buttons. The matching area lights up green when registered.
- Scroll the wheel. Scroll up and down. The counter should change by one per notch.
- Watch for double-clicks. Single-click slowly. Any counted double-click points to a worn switch.
Why test this
Buttons, the scroll wheel, and the left switch are the first parts of a mouse to wear out, and the trouble starts small. A side button that fires once in ten presses. A wheel that skips a notch. A left click that sometimes registers twice. This test checks all of them in one place, so you can tell a real hardware fault from a driver glitch or a bad in-game binding. Run it on a used mouse before you buy, on a unit that feels off before you file a warranty claim, or after a cleaning when you want to confirm nothing came loose. Every button reacts on screen the second you press it, so you can see right away whether a button is dead, stuck on, or just hidden from the browser.
What the results mean
Each button lights up green on the mouse diagram the moment it registers. Press left, right, middle, and both side buttons and watch them respond. A button that never lights up is dead, and one that stays lit is stuck. The scroll counter adds one for every notch up and subtracts one for every notch down, so it should move by exactly one per detent. A jump or a skip points to a worn encoder. The double-click counter should stay at zero. It only goes up when two left presses land within 50 ms, which is the classic sign of a failing switch, so click slowly and keep an eye on it. Note that many browsers reserve the back and forward buttons for navigation, so if your side buttons do not light up here, try another browser before you blame the mouse.
FAQ
- How do I know if my mouse is double-clicking?
- Click slowly once. If the double-click counter goes up without you clicking twice, the switch is likely failing.
- Why are my side buttons not detected?
- Some browsers reserve back/forward buttons for navigation. Try a different browser if they do not register.
- Is this mouse test free?
- Yes. It runs entirely in your browser, needs no installation, and stores nothing.
- Does the test work on a laptop trackpad?
- Left, right, and scroll work on most trackpads. Middle and side buttons require a physical mouse.
- Can I test polling rate here?
- Not yet. This tool covers buttons, scroll, and double-click; a polling rate test is planned separately.
Related reading
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