Free left button test
Left Click Test
Click the left button in the box. Each click should add exactly one to the counter.
0Total
0Left
0Right
0Middle / side
Click anywhere in this box
How to Use the Left Click Test
The left button does the most work, so it often fails first. This left click test counts every click in the box, so you can check that each press counts exactly once. If the count jumps by two, run the double click test.
- Click in the box. Use the left button.
- Count along. Click 20 times and check it says 20.
- Try light presses. A worn switch may miss soft clicks.
- Check chatter. Run the double click test if counts jump.
Left Click Not Working Properly?
- Try another USB port or fresh batteries.
- Clean around the button.
- Turn off ClickLock in Windows mouse settings.
- A worn switch needs replacing.
Frequently Asked Questions
Why does one click count twice?
Switch chatter. See the double click test.
Can I test the right button?
Yes, right clicks are counted too.
Is it free?
Yes.
Keep testing
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