Mouse Test and Click Speed Test

How to test your mouse

1. Move the pointer into the dashed test area. Position shows the pointer coordinates inside it.
2. Press each button: Left, Middle, Right, Back (4) and Forward (5). The matching box lights up while the button is held and counts its clicks.
3. Double-click to check Double-clicks, and read Last click interval to see the time between your last two left clicks.
4. Scroll the wheel up, down and sideways. deltaY, deltaX, deltaZ and deltaMode show the raw values, and Wheel counts the scroll steps in each direction.
5. Press Reset to clear the counters.

Inside the test area only, this tool blocks the right-click menu, the middle-click autoscroll and back/forward navigation, so you can press every button safely. Outside it, your mouse behaves normally.

Clicks per second (CPS) test

1. Choose a duration: 1 second, 5 seconds or 10 seconds.
2. Click the large box as fast as you can. The timer starts with your first click.
3. Read Time left, Clicks and CPS live. When time is up, your final score is shown and the best score for each duration is kept under Best (this session).

CPS is simply the number of clicks divided by the duration in seconds: 35 clicks in 5 seconds is 7 CPS. Typical scores for normal clicking are around 5 to 8 CPS. Techniques such as jitter clicking or butterfly clicking can exceed 10 to 15 CPS. Short tests give higher scores because fatigue hasn’t set in, so compare results for the same duration. Only left-button presses are counted, and there is a short pause after each run so your last clicks don’t start a new one.

Diagnosing a faulty mouse

Unwanted double-clicks are the most common mouse fault. As the switch under the left button wears out, one press can register as two. This tool counts Double clicks under 80 ms: two left clicks less than 80 milliseconds apart are faster than most people can click on purpose, so if that counter rises while you single-click slowly, the switch is probably bouncing. Compressed air sometimes helps; otherwise the switch or the mouse needs replacing.

Buttons that don’t respond stay dark when pressed. Side buttons (Back and Forward) are not present on every mouse, and some mice need their own software to send them as standard buttons.

Drag problems: hold the left button and move the pointer. If the Left box flickers off while you hold it, the switch is losing contact, which also breaks drag and drop and text selection.

Scroll wheel faults show up as a wheel that jumps backwards: scrolling down steadily but seeing Scrolls up increase means a dirty or worn wheel encoder.

Understanding the wheel values

deltaY is vertical scrolling (positive means down), deltaX is horizontal scrolling from a tilt wheel or a touchpad, and deltaZ is rarely used. deltaMode tells you the unit: pixels, lines or pages. A classic notched wheel in Chrome typically sends about 100 pixels per notch, while Firefox may report lines. Touchpads and free-spinning wheels send many small values, which is why the step counters can climb fast.