Question 1

Is this mouse test free?

Accepted Answer

Yes, and it always will be. There's no sign-up, no time limit, and no catch. Click any button, scroll, or trace a line below and you're testing immediately.

Question 2

Do I need to download or install anything?

Accepted Answer

No. Everything runs in this browser tab, so there's nothing to install and nothing left behind when you close it.

Question 3

Does this tool record or upload any data from my mouse?

Accepted Answer

No. Every click, scroll, and movement is only ever read by this page, and only while this tab is focused. Nothing is recorded, transmitted, or stored anywhere, and this tool doesn't even have a server to upload to.

Question 4

What does it mean if a button is marked as not working?

Accepted Answer

It means that button hasn't registered a full press-and-release yet, either because you haven't clicked it, or because it isn't working. Click it again and watch the illustration above: if it never lights up no matter how many times you try, that's a real sign of a fault.

Question 5

How does this tool detect if my mouse is double-clicking?

Accepted Answer

Every confirmed click on a button is timestamped. If two clicks on the same button land less than about 50 milliseconds apart, faster than anyone can reliably click on purpose, that's flagged as possible chatter, with the exact gap shown in milliseconds so you can judge for yourself.

Question 6

Why did clicking my mouse's Back or Forward button navigate away from this page?

Accepted Answer

Some mice's Back/Forward buttons are wired directly to the browser's own history navigation, and a small number of browsers, including Edge, Firefox on Linux, and Chrome on Linux and Android, don't let a webpage reliably stop that, even though this tool does try to prevent it. If it happens, you'll leave this page and lose your progress here, the same as clicking your browser's own Back button. Just return to this test and start again. It's a known browser-platform limitation, not a bug in this tool.

Question 7

Does this include a click speed (CPS) test?

Accepted Answer

No, that's a different job. This tool checks whether your buttons and sensor work correctly, not how fast you can click. Look for a dedicated click-speed or CPS test if that's what you need.

Question 8

Can I test my mouse's DPI or sensitivity with this tool?

Accepted Answer

No. DPI and sensitivity testing measures how far your cursor moves per inch of physical movement, calibrated against a ruler held to your screen, which is a different job from checking whether your hardware itself is working. Look for a dedicated DPI analyzer if that's what you need.

Question 9

Is the polling rate reading on this page accurate?

Accepted Answer

It's accurate in Chromium-based browsers like Chrome and Edge, which reliably report rates above 1000Hz. Firefox and Safari currently cap the rate they report at around 1000Hz even on a mouse that polls faster. That's a real browser limitation, not a fault with your hardware or this tool, so don't read a capped number in those browsers as a sign your mouse is underperforming.

Question 10

Does this work with a laptop trackpad?

Accepted Answer

Yes, for clicks, drag, and two-finger scrolling. A trackpad sends your browser the same click, scroll, and pointer events a mouse does. This isn't built to test trackpad-specific gestures like pinch-to-zoom, just the same button, scroll, and cursor-tracking checks a mouse gets.

Question 11

Does this work with a wireless or Bluetooth mouse?

Accepted Answer

Yes. Your operating system treats Bluetooth, USB receiver, and wired mice the same way once they're connected, so every test on this page works identically with all of them.

Question 12

What does the cursor tracking test actually check for?

Accepted Answer

Hold your left button and trace a line across the box: this page compares the exact path your cursor took to a smoothed version of that same path. A big gap between the two usually means a dirty or failing sensor. It also watches for your click registering as released partway through the trace without you actually letting go, a sign the button's switch may be losing contact under sustained pressure.

Question 13

Can I use this to check a mouse before buying it secondhand?

Accepted Answer

Yes, that's exactly the kind of situation this is built for. Click every button, scroll both ways, and trace a line in the cursor-tracking box. You'll see immediately, live, whether everything works or exactly what doesn't.

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