Mouse Test
How to use it: click START, then press each mouse button inside the box. Left clicks are counted under Left Clicks, every other button under Right Clicks, and both add to Total Clicks. Reload the page to start again.
This free mouse test shows whether every mouse button registers, and whether each press is counted exactly once. Press a button slowly inside the box: if the counter goes up by one, the button works; if it goes up by two from a single press, the switch is faulty and causing double clicks.
This online mouse test runs in your browser with nothing to install and works with wired, wireless and Bluetooth mice, as well as laptop trackpads.
How to use the mouse tester
- Click START TEST. That first press already counts as one left click.
- Press the left button a few times, slowly and on purpose, and watch Left Clicks rise by exactly one per press.
- Press the right button the same way and watch Right Clicks.
- Press the scroll wheel down and try the side buttons, if your mouse has them. They are counted under Right Clicks too.
- Check that Total Clicks always equals Left plus Right.
- To start over, reload the page.
The Left and Right bars under the box also flash each time a press registers, so you can see every click as it happens.
How the mouse button test counts clicks
Like any mouse click test, it counts the moment a button goes down, not when it comes back up. That is what you want for spotting faults: a worn switch that bounces makes the computer see two separate button presses, and each one is counted.
Buttons are sorted like this:
| Button you press | Where it is counted |
|---|---|
| Left button | Left Clicks |
| Right button | Right Clicks |
| Scroll wheel press (middle button) | Right Clicks |
| Side buttons (back and forward) | Right Clicks |
| Any press | Total Clicks |
The right click menu is switched off on this page, so right clicking does not open a menu over the test. Scrolling the wheel is not counted here; use the scroll test for that.
Check for a mouse double clicking problem
This is where a mouse button tester earns its place. A mouse that opens files with one click, drops items while you drag, or selects text it should not, often has a bouncing switch. The contacts inside a mouse button wear over time and can register one press as two. Here is how to check:
- Make sure the counters are at a known number (reload the page if needed).
- Press the left button 20 times slowly, with a clear pause between presses.
- Left Clicks should have gone up by exactly 20. If it went up by more, some presses registered twice.
- Repeat with the right button, and with any button you use for gaming.
Pressing slowly matters: if you click fast, it is hard to tell an extra click from your own. A fault that shows up only sometimes is still a fault, and it usually gets worse as the switch wears further. For a more detailed check that times the gap between clicks, use the double click test.
What to do if a mouse button is not working
When you test mouse buttons and one does not register at all, or registers extra clicks, work through these steps before replacing the mouse:
- Try another port or computer. Plug the mouse into a different USB port, or test it on another computer. If it works there, the problem is your computer, not the mouse.
- Check the power and connection. Replace or charge the battery of a wireless mouse, move the receiver closer, or re-pair a Bluetooth mouse. Weak connections cause missed clicks.
- Check the mouse software. Gaming mouse software can remap buttons, so a side button may be set to do something else or nothing. Reset it to default and test again.
- Check your system settings. A very fast double click speed setting, or a feature such as ClickLock in Windows, can make a healthy mouse behave oddly.
- Clean the mouse. Dust and grime around the buttons can make them stick or feel uneven.
If the test still counts extra clicks after all that, the switch itself is worn. That is a hardware fault that software cannot fix. Many mice are covered by a warranty for this, so check with the maker before you buy a new one.
What this mouse test does not measure
This page checks buttons. Other parts of a mouse need different tests:
- Clicking speed: how many times you can click per second is measured by the CPS test.
- Right button speed: the right click test times your right clicks.
- Scroll wheel: the scroll test checks the wheel and its steps.
- Polling rate: how often the mouse reports to your computer is measured by the polling rate test.
- Sensor DPI: how far the cursor moves per inch is measured by the mouse DPI analyzer.
- Latency: no browser test can measure your mouse’s true click latency, because the screen, the operating system and the browser all add their own delay.
Testing a mouse for gaming
Gamers often check mouse clicks before a match or after buying a new mouse, so this mouse checker is a good first step. A quick routine:
- Run the button check above on every button you have bound in your games.
- Measure your click speed with the CPS test so you know your baseline.
- Check that the polling rate matches the setting in your mouse software.
- Warm up your aim with the Aim Trainer.
Frequently asked questions
How do I test my mouse buttons online?
Open this page, click START, then press each button slowly inside the box. Every press should raise the matching counter by exactly one. If a counter does not move, the button is not registering; if it jumps by two, the switch is double clicking.
Can this mouse tester check the middle and side buttons?
Yes. Pressing the scroll wheel or the side buttons inside the box raises the Right Clicks and Total Clicks counters. The test does not show which side button you pressed, only that it registered.
Why does my mouse double click when I click once?
Usually the switch under the button is worn and bounces, so one press is seen as two. Less often it is a software setting or a remapped button. If the problem follows the mouse to another computer, the switch is the cause.
Does this work with a wireless or Bluetooth mouse?
Yes. It works with any mouse your computer recognises, including wireless, Bluetooth and laptop trackpads. If clicks are missed only on a wireless mouse, check the battery and the distance to the receiver.
Can I test my mouse on a phone or tablet?
You can tap the box and taps count as left clicks, but phones do not have mouse buttons to test. Use a computer to test a real mouse.
Why does the count start at 1?
The press on the START TEST button is inside the test box, so it is counted as your first left click. Keep that in mind when you count presses.
How do I reset the counters?
Reload the page. The counters start again from zero.
What your CPS score means
When the timer runs out, the test divides your total clicks by the length of the test to give your clicks per second (CPS), then awards one of nine animal ranks:
| Rank | CPS |
|---|---|
| Sloth | 0 – 3.5 |
| Turtle | 3.6 – 5.5 |
| Panda | 5.6 – 6.6 |
| Mouse | 6.7 – 6.9 |
| Buffalo | 7.0 – 7.5 |
| Rabbit | 7.6 – 8.0 |
| Wolf | 8.1 – 8.5 |
| Tiger | 8.6 – 9.0 |
| Cheetah | 9.1+ |
The timer starts when you press Start, and only clicks inside the click area count. You can also take the test with a keyboard: press Enter or Space on the click area. Your last five results are saved in your own browser, not on our servers.