Terms of Use

Last updated: November 7, 2026

Summary of these terms of use

These terms of use apply to everyone who visits MouseTester.pro. In short: the tests are free, they run in your browser, their results are a guide rather than a certified measurement, and brand names belong to their owners. By using the site you agree to these terms. If you do not agree, please do not use the site.

About this site

MouseTester.pro is an independent website with free tools for checking a computer mouse: buttons, double clicking, the scroll wheel, DPI and polling rate. It is not affiliated with, endorsed by or sponsored by any mouse manufacturer. The site is free to use and does not require an account.

Test results

The tests measure what your browser receives from the mouse. Browser limits, operating system settings, drivers, other software and the way you move the mouse can all affect a result. Measurements such as DPI and polling rate are estimates and may differ from the manufacturer's figures or from specialised hardware tools. Use the results as a guide. We are not responsible for decisions made on the basis of a result, such as returning, repairing or buying a product.

Repairs

Pages on this site describe common fixes, such as cleaning a switch or an encoder. Opening a mouse may void its warranty and can damage it. Any repair you attempt is at your own risk.

Browser features used by the tests

Some tests use browser features that change how the page behaves while you test. The mouse tester blocks the right-click menu, middle-click autoscroll and Back/Forward navigation inside the test pad so that those buttons can be counted. The scroll wheel test stops the page from scrolling while the pointer is over its pad. The DPI tester uses pointer lock, which hides the cursor until you finish a measurement or press Esc. None of these features give the site access to anything outside the page, and all of them end as soon as you leave the test area or the page.

Availability

We may change, add or remove tests at any time, for example when browsers change what they allow pages to measure. We try to keep existing page addresses working so that links and bookmarks keep pointing to the right test.

Trademarks

Product and brand names mentioned on the site are trademarks of their respective owners and are used only to describe compatibility or common examples.

Our content

The text, tools and design of MouseTester.pro are our own work. You may link to any page and quote short parts with a link back. Please do not copy whole pages or republish the tools as your own. Screenshots and recordings of test results may be shared freely, for example in a warranty claim or a review.

Acceptable use

Do not try to disrupt the site, overload it with automated requests, or use it for anything unlawful. We may block access from sources that do.

Advertising and links

The site may show advertising and link to other sites. We are not responsible for the content, products or privacy practices of other sites or advertisers.

No warranty

The site is provided as is, without any warranty. We do our best to keep the tools accurate and available, but we do not promise that they will always be correct, complete or online. To the extent the law allows, we are not liable for any loss arising from your use of the site.

Changes to these terms of use

We may update these terms of use. The date at the top shows the latest version, and continued use of the site means you accept it.

Contact

For questions, bug reports or anything else, email us.