Privacy Policy

Last updated: November 5, 2026

MerMindMap (“we”, “the app”) is a web-based mind-map editor available at https://mm.f8r.us. This policy explains what information the app collects, how it is used, and the choices you have.

Information we collect

Account details: your name and email address, and a securely hashed password if you sign up with email.
Google sign-in: if you choose “Continue with Google”, we receive your name, email address and profile picture from Google. We do not receive your Google password.
Your mind maps: the titles and contents of the mind maps you create, so they are available when you sign in.
Activity records: basic security events such as sign-ins, failed sign-ins, password changes and map creation or deletion, with the time and your email address. These help keep accounts secure.

Google Drive

Connecting Google Drive is optional. If you connect it, the app asks for the limited drive.file permission. This lets it read and write only the files you create with MerMindMap or pick yourself in Google’s file picker. It cannot see or change any other files in your Drive. Drive access happens directly between your browser and Google. We do not store your Drive files or Google access tokens on our servers.

MerMindMap’s use of information received from Google APIs follows the Google API Services User Data Policy, including the Limited Use requirements.

How we use information

To create and secure your account and sign you in.
To save, show and sync your mind maps.
To send account emails you ask for, such as password-reset links.
To understand overall usage and improve the app, if anonymous analytics are enabled.

We do not sell your information, use it for advertising, or share it with third parties except the service providers that host and run the app.

Cookies

The app uses a session cookie to keep you signed in. Your browser may also store editor preferences locally.

Keeping and deleting your data

Your account and mind maps are kept until you delete them or ask us to delete your account. You can delete individual maps at any time. To delete your account and all of its data, email [email protected].

Security

Passwords are stored only as secure hashes, and all traffic to the app is encrypted over HTTPS.

Children

MerMindMap is not directed at children under 13, and we do not knowingly collect their personal information.

Changes and contact

We may update this policy from time to time, and the date above will change when we do. Questions? Contact [email protected].