Mouse Test
Test buttons, double-click faults, scroll, CPS and polling rate. Runs in your browser.
About this mouse test
This mouse test checks every button, catches a mouse that double-clicks on its own, tests the scroll wheel, counts your clicks per second and estimates the polling rate. It is for gamers, people with a mouse that started misbehaving, and anyone checking a new or second-hand mouse.
Click left, right, middle and both side buttons in the test area. Each lights up on a drawing of a mouse and gets a counter. The side buttons won't send you back a page while you test.
It runs in your browser, with nothing to install and nothing sent anywhere.
Features
All five buttons
Left, right, middle (wheel click), Back and Forward side buttons, each with a press counter and a live highlight while held. The right-click menu and middle-click autoscroll are blocked inside the test area.
Double-click fault detection
Any two presses of the same button closer than your threshold, 80 ms by default and adjustable from 30 to 150 ms, are flagged in red with the exact gap.
Double-click speed
Double-click the left button a few times and see your average gap in milliseconds, next to the number of double-clicks the browser recognised.
Scroll wheel test
Counts wheel steps up, down, left and right, shows the size of the last step and whether the browser reports it in pixels, lines or pages.
CPS test
Clicks per second over 5, 10 or 30 seconds. The timer starts on your first click, and your best score for the session is kept.
Polling rate estimate
Move the mouse fast inside the pad and see the report rate in Hz, plus the nearest common setting (125, 250, 500, 1000 Hz and up). In Chrome and Edge it reads raw pointer updates for the most accurate figure.
How to use the mouse test
- 1Click every mouse button and scroll both ways inside the test area.
- 2Watch for red double-click warnings and check your double-click speed.
- 3Run the CPS test, then move the mouse fast in the pad to estimate polling rate.
When to use it
A mouse that double-clicks by itself
Single-click slowly 20 times. If red warnings appear with gaps of a few milliseconds, the switch is bouncing. That is the most common mouse fault.
Side buttons that do nothing
Press Back and Forward. If they light up here but do nothing in a game, the game or the mouse software has them unbound.
A jumpy scroll wheel
Scroll down slowly and watch the up counter. A worn encoder sends the odd step in the wrong direction.
Checking a gaming mouse's settings
Confirm the polling rate you set in the mouse software actually applies, then pair it with the keyboard tester to check the rest of your setup.
How do I test if my mouse is double-clicking?
Click the left button once, slowly, about once a second, 20 or 30 times. Watch the event list. A healthy mouse logs one press per click. A faulty one sometimes logs a second press 5 to 50 ms after the first, and the tester flags it in red.
Repeat for the right and middle buttons. Faults usually start on the left button because it does most of the work. If you see red warnings, try cleaning the switch with compressed air first. On many mice the long-term fix is replacing the switch.
What is a good double-click speed?
Windows treats two clicks within 500 ms as a double-click by default, and you can change that in the mouse settings. Most people double-click with a gap of around 100 to 250 ms.
If double-clicks often fail to open files, your gap is longer than the system setting, so slow the setting down. If single clicks are often treated as double-clicks, the switch may be at fault, and the red warnings here will show it.
What is mouse polling rate?
Polling rate is how often the mouse reports its position to the computer each second. 125 Hz means a report every 8 ms, 1000 Hz every 1 ms. Office mice often run at 125 Hz, gaming mice at 1000 Hz, and some newer ones at 4000 or 8000 Hz.
This page estimates the rate from the timing of browser movement events. Chrome and Edge expose raw pointer updates and get close to the real value. Other browsers may group movements per screen frame, which caps the reading near your refresh rate. Move the mouse fast and in circles, because a still or slow mouse sends fewer reports.
- 125 Hz: fine for office work.
- 500 to 1000 Hz: the usual gaming choice, smoother and a little less delay.
- 4000 to 8000 Hz: very small gains, and more CPU load.
What is a good CPS score?
Normal clicking lands around 5 to 7 clicks per second. Fast players reach 8 to 12 with practice, and techniques like jitter or butterfly clicking go higher. The score depends on technique as much as on the mouse.
A sudden drop in CPS on one mouse but not another can point at a stiff or failing switch.
Why use Mavros
| Mavros | Typical upload sites | |
|---|---|---|
| Buttons | Left, right, middle, Back and Forward with counters | Left and right only |
| Double-click faults | Flags presses under an adjustable threshold with the gap in ms | Counter only |
| Side buttons | Page navigation blocked while testing | Can send you back a page |
| Scroll test | Up, down, left, right, step size and unit | Up and down only |
| Polling rate | Raw updates where supported, nearest common rate | Frame-capped estimate |
| CPS | 5, 10 or 30 s with session best | Separate site, heavy ads |
Tips
- Test in more than one browser if the polling rate looks low. Chrome and Edge usually read highest.
- Some wireless mice lower their polling rate to save power when the battery is low. Charge it and test again.
- A scroll wheel that sends steps in the wrong direction often improves after a blast of compressed air into the wheel gap.
- Want to time yourself on keys too? Try the typing speed test, or use a stopwatch for your own reaction drills.
- Laptop owner? Run the dead pixel test while you're checking hardware.
Questions
How can I tell if my mouse is broken?
Press each button and scroll in the test area. A button that never lights up is dead. Red warnings mean double-click faults. A wheel that adds steps in the wrong direction has a worn encoder.
Why does my mouse double-click when I click once?
The switch inside the button is bouncing, usually from wear or dust. It sends two presses a few milliseconds apart. Compressed air sometimes helps. Replacing the switch, or the mouse, is the lasting fix.
Why don't the side buttons register?
Your mouse software may have them remapped or turned off, or the mouse may not have them. If they light up here but not in a game, change the binding in the game.
How accurate is the polling rate test?
It is an estimate from browser event timing, not a hardware measurement. In Chrome and Edge it comes close. Other browsers may cap it near your screen's refresh rate, around 60 to 240 Hz.
What threshold should I use to detect double-click faults?
80 ms works well. Real double-clicks are almost never faster than that, while switch bounce usually shows gaps under 30 ms. Lower it to 40 ms if you click very fast and see false warnings.
Does the mouse test work with a touchpad?
Mostly. Taps register as left clicks, two-finger taps as right clicks, and two-finger scrolling shows in the wheel counters, usually in pixel steps. Touchpads have no side buttons or polling setting to test.
What is the average clicks per second?
Most people score about 5 to 7 CPS with normal clicking over 5 or 10 seconds. Scores of 10 or more usually need special techniques like jitter or butterfly clicking.