Double-Click Test

Find out whether your mouse is sneaking in extra clicks when you only press once.

  1. Click once inside the box, then pause. Repeat 20 to 30 times.
  2. Test each button: left, right and middle.
  3. Any "unwanted double" means the switch is likely worn.
Click here, one press at a time.
ButtonPressesUnwanted doublesShortest gap

Click slowly

This test looks for two presses landing impossibly close together. Click at a normal, relaxed pace; deliberate fast double-clicks will be flagged too.

How the double-click test works

Each time a mouse button goes down, the page notes the exact time. A finger can't press the same button twice in less than about a tenth of a second, so two presses closer than the limit you choose are counted as an unwanted double. That's the classic sign of a worn or dirty switch "bouncing" as it closes.

The shortest gap tells you how bad it is: a few milliseconds is almost certainly a faulty switch, while gaps near the limit may just be quick fingers. Try the 50 ms setting to be strict.

Mouse double-clicking? Things to try

  1. Check your settings first. Make sure single-click-to-open isn't on in your file manager, and that mouse software hasn't mapped a button to a double-click.
  2. Try another USB port or receiver, and replace the batteries in a wireless mouse.
  3. Update the mouse software. Some gaming mice offer a "debounce time" setting that hides the problem.
  4. Clean around the button with compressed air.
  5. Use the warranty. A switch that still double-clicks is a hardware fault, and many makers replace mice for it.

Frequently asked questions

Does a touchpad or touchscreen work here?

Yes, though taps rarely double up the way mouse switches do. This test is mostly useful for mice.

Where can I test every button and the scroll wheel?

Use the mouse test.