Mouse Test

Check every button and the scroll wheel, and catch a mouse that double-clicks on its own.

  1. Move your pointer into the test box.
  2. Click each button and scroll the wheel up and down.
  3. Every tile should light up and count your actions.

Click, scroll and press side buttons inside this box.

Left click0
Middle click0
Right click0
Back (side)0
Forward (side)0
Scroll up0
Scroll down0
Double-click0

Find unwanted double-clicks

Click the left button slowly, once at a time. If “Double-click” goes up or “Left click” jumps by two, your switch is wearing out and double-clicking by itself.

How the mouse test works

Each button press, wheel step and double-click inside the box is detected by your browser and counted on its own tile. Tiles turn blue while a button is held and stay green once tested. Right-click menus and back/forward navigation are blocked inside the box, so you can press every button safely.

A button or the wheel isn't working

  1. Try another USB port, or replace the batteries / recharge a wireless mouse.
  2. Check the mouse software. Logitech, Razer and other apps can remap side buttons to other actions, so they never reach the browser as back/forward.
  3. Clean the wheel. Dust can make the wheel skip or scroll the wrong way. A burst of compressed air often fixes it.
  4. Test on another computer. If it fails there too, the problem is the mouse; if not, it's drivers or settings.

Frequently asked questions

Why doesn't my middle click count?

Some laptop touchpads have no middle click, and some mouse apps turn it into another action. Check your mouse or touchpad settings.

Why does one scroll step count more than once?

Smooth-scrolling mice and touchpads send many small scroll events per step. That's normal; only scrolling in the wrong direction points to a problem.