Privacy Policy

Last updated: June 15, 2026

Your birth data

ChartLune calculates your chart entirely within your web browser. The birth date, time and place you enter are processed on your own device and are never transmitted to, logged by, or stored on our servers.

City lookup

To find the coordinates of your birth city, your typed city name is sent to a third-party geocoding service (Open-Meteo). This request contains only the place name you type, not your identity or other birth details.

Analytics

We may use privacy-respecting analytics to understand aggregate, anonymous usage (such as which calculators are popular). This does not identify you personally.

Cookies

ChartLune does not require cookies to function. Any analytics cookies, if present, are anonymous and used only to measure aggregate traffic.

Contact

For any privacy questions, contact hello@chartlune.com.