Privacy Policy

Calculator inputs — All calculations run entirely in your browser. Input values you type into calculators are processed locally and are never transmitted to or stored on our servers.

Language preference — We store a single cookie named ec-lang to remember the display language you selected. No personal information is contained in this cookie.

Usage analytics — We may collect aggregated, anonymised page-view data to understand which tools are most useful. This data cannot be used to identify any individual.

We display advertisements served by Google AdSense. Google and its partners may use cookies to serve ads based on your prior visits to this website or other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to this site and/or other sites on the internet.

You may opt out of personalised advertising by visiting Google Ad Settings. Alternatively, you may opt out of a third-party vendor's use of cookies by visiting the Network Advertising Initiative opt-out page.

We use the following types of cookies:

• Essential cookies — Language preference (ec-lang) and theme preference (stored in localStorage).
• Advertising cookies — Set by Google AdSense for ad personalisation and frequency capping.
• Analytics cookies — Set by third-party analytics providers for anonymised usage statistics.

For full details, see our Cookie Policy.

When you use the “Explain with AI” feature, your calculation result (numbers and formula name only — no personally identifying information) is sent to an AI language model API for the purpose of generating a plain-English explanation. We do not include any personal data in these requests.

We do not store calculation inputs or results on our servers. Cookies expire as described in our Cookie Policy. Analytics data is retained in aggregated, anonymised form only.

EngForge is not directed at children under 13 years of age. We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us so we can delete it.

Depending on your location, you may have rights to access, correct, or delete personal data we hold. Because we do not store personal data on our servers, most requests can be satisfied by clearing your browser cookies and local storage. For any other privacy requests, contact us at the address below.

We may update this Privacy Policy from time to time. We will post the updated date at the top of this page. Continued use of EngForge after any changes constitutes acceptance of the revised policy.

For any privacy-related questions or requests, please visit our contact page.