Privacy

Short version: we don't collect anything.

The calculators run entirely in your browser. What you type is never sent to us or anyone else. To save you retyping, your last entries are kept in your browser's local storage on your own device. Clear your browser's site data to remove them.

There are no cookies, ads, analytics, tracking pixels, or outside scripts on this site. The site is hosted on GitHub Pages, which, like any web host, may keep standard server logs; see GitHub's privacy statement.

Some pages link to other sites, such as an Etsy shop or a fee source. Those sites have their own privacy policies. The Etsy shop linked on these pages is our own. If we ever add affiliate links, we'll say so clearly next to each one and update this page first.

Updated November 5, 2026.