Security
No accounts, calculators run in your browser, and we don't sell your data.
A straightforward answer to “what happens to my data” on this site.
No accounts
There is no sign-up, login or user account anywhere on this site. Nothing you do here is tied to an identity we store.
Calculators run in your browser
Every calculator is plain client-side JavaScript. The numbers you type are calculated on your own device and are never sent to our servers or stored in a database. “Copy link” and “Copy result” just encode your inputs into a web address or your clipboard, nothing more.
The contact form
If you use the contact form, your message is handled by our form provider, Netlify, and reaches us by email. That is the only place on the site where you hand us information directly.
Connection security
The site is served over HTTPS. We do not sell personal information. Full details are in our Privacy Policy.
Report a problem
If you find a security issue, please tell us through our contact page.