How to use this test
Enter the test surface
Move the pointer inside the marked area so the page can show the movement it receives.
Try each button
Use left, right and middle buttons where present. Follow the labelled click and double-click prompts.
Move and scroll
Move across the surface to update the last-position dot and coordinate readout, then use the wheel or trackpad scroll gesture inside the page.
Reset the surface
Clear the counters, last wheel value, coordinates and position dot before another run.
What we check
The page observes pointer movement, button presses, double-clicks and wheel events only inside its test surface. It displays the last local coordinates, a position dot, move and button counts, double-click count, and the latest wheel direction and value.
These are browser events from the current interaction. The tool does not draw a movement trail, provide a drag target, or test touch gestures as a separate touchscreen instrument.
The tool confines capture to its own surface and clears the displayed session values when reset. It does not log pointer activity elsewhere on the page or outside the browser.
What this test can’t tell you
The page cannot measure sensor health, DPI, polling rate, lift-off distance, battery condition, or diagnose a mouse or trackpad.
Operating-system gestures, browser context menus, drivers and accessibility settings can intercept or transform input before it reaches the page.
Something not working?
The pointer does not draw
Move inside the outlined test surface and make sure an overlay or browser extension is not covering it. Reload if the surface did not initialise.
Right click opens a menu
That is normal browser behaviour on many systems. The page may suppress it only inside the test surface; use another app to test a system-level right-click action.
Scrolling does not register
Place the pointer over the test area and try a physical wheel. Trackpad gestures can be handled by the browser or operating system differently.
A click is missed or doubled
Repeat the test, reconnect a wireless receiver or cable, and compare in another application. Browser events alone cannot identify a hardware cause.
Common questions
Can this measure my mouse polling rate?
No. Browser event timing is affected by scheduling, rendering and the operating system, so it is not a reliable polling-rate measurement.
Does it work with a trackpad?
It can show the pointer, click and wheel events the browser receives. Gesture behaviour differs by device and operating system.
Can it test touch input?
This tool is for pointer events from a mouse or trackpad. A touchscreen is a separate input tool and is not tested here.
Why is a button named differently?
Browsers report standard button identifiers, while a mouse may have programmable or vendor-specific controls that do not map directly.