This site collects nothing.
- No cookies are set.
- No analytics or tracking scripts of any kind are loaded.
- No accounts, no sign-up, no email capture.
- No third-party resources. The page loads only its own stylesheet and script from this domain — no fonts, no CDNs, no embeds.
Every calculation runs in your browser. The numbers you type are never sent anywhere — there is no server here to send them to. The site is static files served by GitHub Pages.
What the host sees
Being honest about the part outside my control: GitHub serves these files and will see ordinary web request information, such as your IP address, in the course of doing so. That is GitHub's processing rather than mine, and is covered by their own privacy statement. I do not receive it and have no access to it.
If this changes
If this site ever carries advertising or any form of measurement, this page will say so before it happens, and will describe exactly what is collected. A quiet change here would make the rest of the page worthless.