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Mouse Tester & CPS Test
Check every mouse button, the scroll wheel and double clicks, and measure clicks per second.
Free tools that run in your browser. Nothing you type, open or create is uploaded to NerdBible or anyone else.
Buttons and scroll wheel
Point here, then click every button and turn the wheel
No chattering seen yet. Single clicks that arrive as two clicks less than 80 ms apart will be flagged here.
Clicks per second
Polling rate estimate
Move the mouse quickly in circles inside this box
The polling rate is an estimate from the timing of the movement events your browser hands to the page. Browsers can bundle or slow these events, so the true rate of the mouse may be higher; a 1000 Hz mouse often reads somewhat lower here. The best score is kept in this browser only.
How to use it
- Point at the mouse picture and press each button in turn, then roll the wheel up and down. Each part turns black while pressed and grey once it has worked.
- Watch the chattering box: a worn switch can turn one click into two, which shows up here as two clicks less than 80 ms apart.
- Choose 5 or 10 seconds and click the big box as fast as you can for a clicks per second score, then move the mouse in the last box for a polling rate estimate.
Questions
What is double click chattering?
A worn or dirty switch can bounce and send two clicks for one press. Clicking normally, people rarely manage two clicks less than 80 ms apart, so a pair that fast during single clicks points to the switch.
Why does Back or Forward not light up?
Some mice send those buttons as keyboard shortcuts through their own software, and some browsers or systems take them before the page sees them. If the buttons work in other programs, check the mouse software settings.
Is the polling rate exact?
No, it is an estimate. The page can only see the movement events the browser delivers, and browsers may group them to match the screen refresh. Moving fast and steadily gives the best reading.
What is a good clicks per second score?
Most people land somewhere between 6 and 9 clicks per second with normal clicking. Techniques like jitter or butterfly clicking go higher.
About this tool
About the mouse tester
Mice wear out in predictable ways: a button that registers two clicks instead of one, a side button that stops working, a scroll wheel that skips. This page checks each of them.
What it tests
- Buttons and wheel: point at the mouse picture and press each button in turn, including back and forward, then roll the wheel up and down. Each part turns black while pressed and grey once it has worked.
- Double-click chattering: a worn switch can bounce and send two clicks for one press. Two clicks less than 80 ms apart during normal clicking point to the switch.
- Clicks per second: click the big box as fast as you can for 5 or 10 seconds. Most people land between 6 and 9 with normal clicking; techniques such as jitter or butterfly clicking go higher.
- Polling rate: move the mouse steadily in the last box for an estimate.
About the polling rate figure
The page can only see the movement events the browser delivers, and browsers may group them to match the screen refresh. A 1000 Hz mouse often reads somewhat lower here, so treat the number as an estimate.
If back or forward does not light up
Some mice send those buttons as keyboard shortcuts through their own software, and some systems take them before the page sees them.
Everything runs in your browser; your best score is kept in this browser only.
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