Privacy Policy

Last updated October 3, 2026

This policy covers mahfujmustafa.dev, its subdomains, and the apps, bots, and tools published by Mahfuj Mustafa ("I", "me"). It explains what information those services collect, how it is used, and the choices you have.

Information I collect

• Account information from Google Sign-In. If you sign in with Google, I receive your name, email address, and profile picture, plus a Google account identifier. I only request the permissions an app needs, and each app shows you those permissions on Google's consent screen before you agree.
• Content you create. Data you enter into an app, such as settings, records, or files, is stored so the app can work for you.
• Technical data. Hosting providers may log standard request data such as IP address, browser type, and the time of a request. This site does not run third-party advertising or analytics trackers.
• Local storage. Some pages save preferences, like theme or layout settings, in your browser's local storage. That data stays on your device.

How I use it

• To sign you in and keep your account secure.
• To provide, maintain, and fix the features you use.
• To reply when you contact me.

I do not sell your information, use it for advertising, or share it with data brokers.

Google user data

Information received from Google APIs is used only to provide the features of the app you signed in to. Use and transfer of that information to any other app will adhere to the Google API Services User Data Policy, including the Limited Use requirements. Google user data is not used to train AI or machine learning models, is not sold, and is not read by humans except with your permission, for security purposes, or where the law requires it.

Sharing

Information is shared only with service providers that host or run the apps (for example cloud hosting and database providers), and only as far as they need it to do that work. I may also disclose information if the law requires it or to protect the safety of users.

Retention and deletion

Account data is kept while your account is active. You can ask me to delete your account and associated data at any time by emailing contact@mahfujmustafa.dev, and I will delete it within 30 days. You can also revoke an app's access to your Google account at myaccount.google.com/permissions.

Security

Data is sent over HTTPS and stored with providers that encrypt it at rest. No system is perfectly secure, so I cannot guarantee absolute security.

Children

These services are not directed at children under 13, and I do not knowingly collect information from them. If you believe a child has provided information, contact me and I will delete it.

Changes

If this policy changes, the date at the top of this page will change with it. Significant changes will be noted in the affected app where possible.

Contact

Questions or requests can go to contact@mahfujmustafa.dev.