Terms of service

Free to use. Results are a guide only

Updated 2026-11-01

Free to useEvery test is free, with no account

Runs in your browserReadings are not uploaded

A guide onlyNot a manufacturer's diagnosis

Results are a guide only

Factors: 5

The tests read what the browser gets from the mouse. Each step below can change what you see:

FactorWhat it changesWhat to do

1Browser Browsers differ in how many mouse events they deliver and in raw input support Try Chrome or EdgeCheck your browser

2Mouse software Logitech G HUB, Razer Synapse and similar apps can change DPI or remap buttons Check the active profileMouse button test

3Connection Wireless receivers, Bluetooth and USB hubs differ in polling rate and latency Test each connectionPolling rate test

4Pointer settings Pointer speed and Enhance pointer precision change how far the cursor moves Turn acceleration offAcceleration test

5Computer and display A busy computer or a slow display adds to the measured delay Close heavy appsLatency test

Whether wear such as double-clicking counts as a fault depends on the brand's and the seller's warranty terms.

While testing

Items: 3

Fast clickingFast or jitter clicking for a long time can strain the hand and wrist. Stop and rest when it hurts.

Switch wearEvery click wears the switch a little. Long CPS rounds and drag clicking add many clicks.

Opening the mouseCleaning or replacing a switch means opening the shell, which may void the warranty. Check with the brand's support first.

Terms

01Service

MouseTester.io (this site) provides online mouse tests and sensitivity calculators. They run in your browser and read the mouse through the events the browser reports.

02As is

The tools and content are provided as they are. The site does not guarantee that they work on every device and browser, or that results are accurate. The site may change, pause or stop any feature at any time.

03Limitation of liability

Decisions made from these tools and results are your own. The site is not liable for losses that follow, including return or warranty disputes and damage from repairs or teardowns you carry out.

04Third-party services

The site uses Google Analytics for visit statistics and NitroPay for ads. They handle data under their own terms; see the privacy policy.

05Intellectual property

You may quote text with a link to its page. Do not copy, mirror or embed the site in other sites or apps.

06Changes

When these terms change, this page is updated with the date at the top. Continuing to use the site means accepting the changed terms. Questions: Contact us