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Mouse test

Check every mouse button, both scroll directions and the double-click, and see which are still untested.

Input
Output
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Mouse test
Click, scroll and double-click inside the test pad and each action lights up on an on-screen mouse. The tool checks eight things: the left, right and middle buttons, the back and forward side buttons, scrolling up, scrolling down and the double-click. It is a quick check for a mouse that skips clicks, a wheel that jumps backwards, a side button that does nothing or a double-click that fires on its own.
Under the pad, the report lists how many times each button was pressed, which of the eight checks are still untested, and a verdict line once all eight have passed. The log in the input box holds one word per event, for example left, wheel-up or double-click, so you can paste a log from someone else to get the same report, or edit yours by hand. A double-click also records the two left clicks it is made of.
A browser can only see what the operating system passes on. Extra buttons such as DPI switches, profile keys and many gaming macros are handled by the mouse driver and never reach a web page. Back and forward buttons are normally reported, but some drivers remap them, and a touchpad or touchscreen is ignored on purpose because it is not a mouse. Inside the pad the context menu, middle-click scrolling and page navigation are switched off so they cannot interrupt the test.
Everything runs in your browser. Your clicks and pointer position are never sent anywhere or stored, and the log disappears when you close the page.
FAQ
Why does my side button not light up?
Either the button is faulty, or the mouse driver uses it for something else, such as a macro or a DPI switch, before the browser sees it. Standard back and forward buttons are reported as back and forward.
How do I tell whether my mouse double-clicks by itself?
Click once, slowly, and watch the log. If a single press records left twice, or the double-click check lights up without you double-clicking, the switch is wearing out and bouncing.
Does the mouse wheel test work with a touchpad?
Two-finger scrolling on a touchpad usually registers as wheel movement, but touch taps are ignored. For the most reliable result, use a real mouse.
Are my clicks or pointer position recorded or uploaded anywhere?
No. The page only listens while it is open, keeps the log in memory and never uploads it. Close the tab and it is gone.