Your family connections stay in your browser.

No names or accounts are required. There are no analytics events or ads. Calculations and diagrams run locally; relationship data is not sent to a calculation service.

The current path and options live in the URL fragment after # for refresh and sharing. Fragments are normally excluded from page HTTP requests, but browser history and anyone with the link can read them. Check the contents before sharing.

Pronunciation uses only matching voices marked as local by the browser. No cloud speech service or microphone is used. Voice quality and language availability depend on your device.

Image downloads and printing are handled by your browser. Loading the website still makes ordinary network requests; its host may retain access logs such as IP addresses, timestamps, and page paths. External references follow their own privacy policies.