Privacy policy

Last updated: 2026-11-02.

What you type

Every calculator runs in your browser. The numbers, dates and text you enter are not sent to us and are not stored on a server. A "copy link" button puts your inputs into the page address only if you choose to use it.

What we store on your device

We save your light or dark theme choice in your browser's local storage. You can clear it at any time in your browser settings.

Hosting and logs

The site is hosted on Cloudflare Pages. Like any web host, Cloudflare processes technical data such as IP addresses to deliver pages and protect the site from abuse. See Cloudflare's privacy policy.

Advertising

This site does not show ads yet. If we add ads from Google AdSense later, this policy will be updated first to explain the cookies Google and its partners may use and how to opt out.

Children

The site is a general audience site and does not knowingly collect personal information from children.

Contact

Questions about this policy: see the contact page.