Your birth date stays with you.

Effective July 20, 2026

The calculator runs entirely in your browser. Your birth date is never sent to or stored on a server. There is no account, login or email gate.

What this browser stores

The tool may save your most recent birth date in local storage so it can restore your result next time. That value stays on your device. Clearing this site's browser data removes it.

What we do not do

We do not sell personal data, build advertising profiles or upload the share card you create. The result image is generated on your device; if you share it, your browser or operating system handles that action.

Hosting

Cloudflare serves the site and necessarily processes basic connection information, such as an IP address, to deliver and secure the page. The calculator does not attach your birth date to any request.

Contact and choices

There is normally nothing about a calculation for us to retrieve or delete. You control the saved date through your browser's site-data settings. See the terms of use for the tool's limits.