Mouse Tester
Click every button, roll the wheel, move the mouse.
Move the mouse around inside this box to estimate the polling rate.
Ready.
Every test runs inside your browser. Nothing you type, say, show or press is uploaded.
How to use this test
The mouse test checks every button including the side buttons, measures the time between two clicks so you can spot accidental double clicks, counts scroll wheel movement in both directions, and estimates the polling rate from the timing of movement events.
Click each button inside the test area and watch its counter. Double-click the left button to see the time between the two clicks. Scroll up and down to check the wheel. Then move the mouse around inside the area for a second or two to get a polling rate estimate.
What the results mean
A button whose counter jumps by two on one click is double clicking, usually because the switch is worn. The interval shown is compared with the 500 ms that Windows uses as its default double-click window. Polling rate is an estimate: 125 Hz is common for office mice and 1000 Hz for gaming mice. Browsers merge movement events, so the estimate can read lower than the mouse's real setting.
Common questions
My mouse double clicks on its own. Is it broken?
If this test shows two counts from one press, the switch is bouncing. On some mice you can raise the double-click threshold in the operating system as a workaround; replacing the switch or the mouse is the real fix.
Why does the polling rate show less than 1000 Hz on my gaming mouse?
Browsers group pointer events, so the rate measured here is a floor rather than an exact figure. Move the mouse steadily in circles for a better estimate. For an exact number, use your mouse software.
The side buttons go back and forward instead of counting.
Some browsers act on the back and forward buttons before the page sees them. Try Chrome or Edge; if it still happens, the buttons are working, the browser is just using them.