Mouse Tester
Test every mouse button, the scroll wheel, and double-click speed.
Buttons
Scroll wheel
Scroll up/down (or side to side) over this box
Double-click test
Double-click inside this box
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Movement
x: — · y: —
Move your cursor over this box
Key features
Click each button, spin the scroll wheel in both directions, and double-click the test box to see exactly what your mouse is sending your browser. Useful for troubleshooting a mouse with a flaky click, checking a new mouse before the return window closes, or diagnosing a scroll wheel that skips.
The right-click menu is disabled on this page so a right-click can register as a test instead of opening a context menu — everything else about your browser works normally. No clicks or movements are recorded or sent anywhere.
How to use
Click each button
Left, right, middle, and — if your mouse has them — the back and forward side buttons all light up green once tested.
Spin the scroll wheel
Scroll up and down (and side to side, if supported) over the scroll panel to confirm both directions register.
Try a double-click
Double-click the test box to see the exact interval between clicks and whether your browser recognized it as a double-click.
Frequently asked questions
Why does right-clicking on this page not open a menu?
This page disables the browser's right-click context menu so a right-click registers as a button press instead of opening a menu. It only applies on this page — right-click works normally everywhere else.
My mouse doesn't have back/forward buttons — is that a problem?
No. Not every mouse has side buttons, so those two simply won't light up if yours doesn't have them. Test whichever buttons your mouse actually has.
What counts as a "double-click" here?
This tool reports the exact millisecond gap between two clicks and separately shows whether your operating system's own double-click threshold recognized it as one (via the browser's native dblclick event). If clicks that feel fast to you aren't registering as double-clicks, your OS's double-click speed setting may be set too strict.
Is any of this data recorded or sent anywhere?
No. Every click, scroll, and movement is handled entirely in your browser with standard mouse events — nothing leaves your device.