MOUSE TESTER / PRIVACY

Mouse Tester Privacy Policy

Last updated: October 15, 2026.

Diagnostic data

Mouse Tester processes mouse-compatible button events, wheel events, pointer coordinates, and timing information in this browser page. The app does not send that diagnostic session to a remote mouse-testing service or save an app-owned diagnostic history.

No app account or automatic diagnostic storage

Mouse Tester does not require an account. It does not use localStorage, sessionStorage, IndexedDB, or cookies to save mouse-test sessions or result history. Refreshing, closing, or leaving the page can discard the current session.

Clipboard

The app requests clipboard writing only after you choose Copy summary. The generated text contains the visible diagnostic summary and the app URL. If clipboard access is unavailable, the same text is shown in a local manual-copy field.

Shared appearance preference

Mycelgrid provides a shared System/Light/Dark appearance preference across its apps. That platform preference is separate from Mouse Tester diagnostic state.

Website-level information

This app is served as part of mycelgrid.com. The Mycelgrid Privacy Policy covers website-level information, hosting, cookies, analytics, advertising, and privacy choices that may apply outside this diagnostic runtime.

Contact

Privacy questions about Mouse Tester can be sent to privacy@mycelgrid.com.