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BUTTONS · WHEEL · DOUBLE-CLICK

Mouse Test

Press every button and roll the wheel inside the test area. Each part lights up when it works.

Best tested with a mouse on desktop.

Test area

QUICK ANSWER

The Mouse Test checks whether every part of your mouse works. Press each button inside the test area: left, right, middle, back and forward. Then roll the scroll wheel both ways. Each part lights up when it registers, and the test warns you if it spots an unwanted double-click.

Tested by the CPSTester.io teamLast updated

What Does the Mouse Test Check?

The test covers every input a standard mouse has, plus the most common fault:

PartWhat the test checks
Left buttonEach click registers, and only once.
Right buttonEach click registers. The usual right-click menu is blocked inside the test area so you can test freely.
Middle buttonPressing the scroll wheel down works as a click.
Back and forward buttonsThe two side buttons work. These are common on gaming mice.
Scroll wheelUp and down scrolls are each counted separately.
Double-click detectionTwo left clicks less than 80 ms apart are flagged as a possible fault.

Everything you press is listed in the event log, with the time it happened, so you can see exactly what your mouse sent.

How to Test Your Mouse: Step by Step

  1. Step 1: Move your pointer into the test area. Buttons only register while the pointer is inside it.
  2. Step 2: Click each button one at a time. Press left, right, middle, back and forward, and check that the matching part of the mouse picture lights up.
  3. Step 3: Check the counters. Each button’s count should go up by exactly one per press. A jump of two from one press points to a double-click fault.
  4. Step 4: Roll the scroll wheel. Scroll slowly up, then down, and make sure each direction is counted correctly.
  5. Step 5: Test the left button for double-clicks. Click it normally 20–30 times. If the test shows a double-click warning, your switch may be wearing out.
  6. Step 6: Press Reset and repeat. Running the test twice confirms whether a problem is real or a one-off.

How to Spot a Double-Click Problem

A double-click problem happens when one press of the button registers as two clicks. It’s one of the most common mouse faults, and it usually comes from a worn or dirty switch inside the button. Instead of closing cleanly, the switch’s contacts bounce and send an extra click.

How our test catches it: when two left clicks arrive less than 80 ms apart, the test flags a possible double-click. That’s faster than most people click on purpose, so it usually points to the switch, not your finger.

Click normally during this check. Fast techniques like butterfly clicking can produce gaps under 80 ms on their own and trigger a false warning.

If you see the warning:

  • Retest a few times to confirm it keeps happening.
  • Clean around the button with a short burst of compressed air.
  • Raise the debounce time in your mouse software, if it has that setting.
  • Check your warranty. A failing switch is often covered.

Button Not Working? Common Causes and Fixes

If a part of your mouse doesn’t light up in the test, start with these common causes:

ProblemLikely causeTry this
Nothing registers at allThe pointer is outside the test area, or the mouse has lost connection.Move the pointer into the area, then try another USB port or new batteries.
Side buttons don’t registerYour mouse software has remapped them to keyboard shortcuts.Reset the button settings in your mouse software.
Left and right are swappedYour system’s left-handed setting is turned on.Check the primary button setting in your operating system.
Clicks arrive late or get missedA weak wireless signal or a low battery.Move the receiver closer, or charge the mouse.
Works here, but not in a gameThe button isn’t bound to an action in the game.Check the game’s control settings.
Middle click doesn’t registerA stiff or worn wheel switch.Press firmly in the centre of the wheel. If it still fails, the switch may need repair.

Mouse Test FAQ

How do I know if my mouse is double-clicking?

Click the left button normally inside the test area 20–30 times. If one press increases the count by two, or the test shows a double-click warning, your switch is likely faulty.

Why don’t my mouse side buttons work?

Usually your mouse software has remapped them to other actions, or a driver is missing. Reset the button settings in your mouse software, then test them again here.

Can I test my mouse on a laptop touchpad?

Yes. Taps and clicks on a touchpad count as left clicks, and two-finger clicks usually count as right clicks. Most touchpads have no middle or side buttons to test.

Does the Mouse Test work with wireless mice?

Yes, it works with wired, wireless and Bluetooth mice. If clicks arrive late or go missing, charge the mouse or move its receiver closer, then test again.