Click, double-click and scroll in this box
Polling rate: move the mouse fast in circles inside the box. Back and Forward: press them inside the box — the page will not go back.
About the mouse test
Is a mouse button not working? Does one click open two things? Does the page jump when you scroll? This test shows every press, click and scroll as it happens.
Each button on the picture lights up while you hold it, and turns green once it has worked. The boxes below count every left, right and wheel click, the two side buttons (Back and Forward), double clicks, and each scroll step up and down.
How to use it
- Move the mouse into the box
- Press each button: left, right, the wheel, and the two side buttons if your mouse has them
- Scroll the wheel up and down
- Click the left button many times at a normal speed — the test warns you if two clicks come too close together
- Move the mouse fast in circles to see the polling rate
The double-click test
A common fault in older mice: you click once, but the computer gets two clicks. Files open when you only wanted to select them, and drag-and-drop lets go by itself. It happens when the switch inside the button wears out and "bounces".
The test watches the time between two presses of the same button. Nobody can press a button twice in less than 60 milliseconds. When two clicks come closer than that, the mouse sent them on its own — the box turns red and shows the gap.
If you see the warning many times, the switch is worn. A new mouse, or a new switch, fixes it. Cleaning sometimes helps for a while.
Polling rate
The polling rate is how often the mouse tells the computer where it is: 125 Hz for many office mice, 500 or 1000 Hz for most gaming mice, and up to 8000 Hz for some new ones. A higher rate gives smoother movement.
Move the mouse quickly and steadily in circles inside the box for a second or two. The test shows the best rate it measured. Chrome and Edge show the most exact numbers; other browsers can show less than the real rate.
Frequently asked questions
Why does my mouse double-click when I click once?
Most often the switch under the button is worn out. It can also be a setting: check that the double-click speed in your computer's mouse settings is not set to the slowest, and that no mouse software turns one click into two.
Why is the polling rate lower than my mouse's setting?
The browser can only measure the movements it receives. Move the mouse fast and without stopping. Wireless mice in power-saving mode, USB hubs and some browsers (Safari, Firefox) can show a lower number. Chrome or Edge give the best result.
Can I test the side buttons?
Yes. Press them inside the box — the page does not go back or forward while you test. In some browsers (like Firefox) a side button may still go back; if that happens, open the page again and use Chrome or Edge.
Does it work with a touchpad?
Yes. A tap counts as a left click, and two-finger scrolling counts as scroll steps. A touchpad sends many small scroll steps, so the numbers go up faster than with a wheel.
Good to know
- Right-clicking inside the box does not open the menu, so you can test the right button freely
- Press Reset to start counting again
- Nothing is recorded or sent anywhere
Related tools
- Keyboard Test — find dead and stuck keys
- Click Speed Test — how many clicks per second
- Reaction Time Test — how fast you react
- Screen Test — find dead pixels
- Left Right Speaker Test — check your speakers
