Privacy policy

Last updated: 8 November 2026

1. Who is responsible

The data controller is Marwen MS, publisher of AllCalculs, reachable at contact@allcalculs.com.

2. What you type in the calculators

Calculations run in your browser. The values you enter are not sent to our servers and are not stored. If you use “Copy link with my values”, the values are placed after the # in the link, a part that browsers never send to the server.

The “My tools” list (calculators you save with ☆) and the “Recently used” list are stored only in your browser (local storage). They are never sent to us, and you can remove them at any time with the × and “Clear” buttons or by clearing your browser data. If you install AllCalculs as an app, your browser keeps a copy of the pages you have visited so they work offline.

3. Files (PDF and images)

The PDF tools and the image resizer process your files inside your browser. Your files are never uploaded or kept by us.

4. Contact form

When you write to us, we receive your name, email address, subject, message and the page you came from, by email. These data are only used to answer you and are not stored in the website database. Emails are kept for up to 3 years after our last exchange. To limit spam, a temporary hashed (pseudonymised) marker of your IP address is kept for one minute. Legal basis: our legitimate interest in answering your requests.

5. Audience measurement

With your consent, we use Google Analytics 4 (Google Ireland Ltd) to count visits and understand which calculators are useful. IP addresses are not stored by Google Analytics 4. If you refuse, no analytics cookie is set; Google may still receive basic signals without cookies or identifiers (consent mode). Legal basis: your consent, which you can withdraw at any time.

We also run our own anonymous visit counter, without cookies or any identifier. It only keeps daily totals: pages viewed, whether a calculator was used (never the values you type), clicks on Copy and Share, the type of referring site (search engine, social network…), the type of device, the hour of the visit and the words typed in the site’s search box. Your IP address is only used in pseudonymised form, for two minutes at most, to block abusive sending; it is not stored. If your browser sends the Global Privacy Control signal, nothing is counted. Legal basis: our legitimate interest in knowing which calculators are useful.

6. Advertising

The site may display ads served by Google AdSense. Personalised ads are only shown if you accept them in the cookie banner; otherwise ads are non-personalised. See our advertising policy.

7. Hosting and security

Our host Hostinger (Cyprus, European Union) records technical logs (IP address, browser, date and page requested) to keep the site secure and working. These logs are kept for a short period. A security plugin protects the administration area; it does not concern visitors who only use the calculators.

8. Cookies

Details of the cookies used and how to change your choices are in our cookie policy. You can change your choice at any time with the “Cookie settings” link at the bottom of each page.

9. Recipients and transfers

Your data are only shared with the providers listed above (Hostinger, Google). Google may process data in the United States under the EU-US Data Privacy Framework. We never sell your data.

10. Your rights

Under the GDPR you can access, correct or delete your data, object to or restrict its processing, request portability and withdraw your consent. Write to contact@allcalculs.com. You can also complain to the French data protection authority (CNIL, www.cnil.fr) or to the authority of your country.

11. Changes

We may update this policy; the date at the top shows the latest version.