Your Privacy
Our Most Cherished Promise
MouseTester.io adopts a 'Local First' design philosophy. We believe the best way to protect data is - not collecting it.
Local Storage
All your test preferences, DPI target distance configs, and CPS high scores are stored in your browser's LocalStorage. These data never leave your device, and we cannot access them.
No Registration
Using MouseTester.io does not require account creation, email, phone number, or any PII. Open and use, traceless browsing.
What information do we collect?
Simply put: Almost none.
This website is a pure frontend application. We do not run any backend database to store user info. The only likely non-PII collection is through standard web server logs (e.g. IP address, user agent), solely for maintenance and security.
About Cookies and Tracking
We do not use any Cookies for ad tracking.
We only use browser local storage technology to save your app state (e.g. dark mode preference, read tips, DPI test target units, etc.). Clearing browser cache will reset these settings.
Third-party Services
To provide faster access, our static resources (images, icons, scripts) may be loaded via CDN. CDN providers may log requests for traffic analysis, governed by their respective privacy policies.