About ChartLune

ChartLune makes professional-quality astrology free, instant and private.

We built ChartLune because the free astrology web is full of a trade-off: sites that are accurate but clunky and dated, or sites that are pretty but gate your chart behind sign-ups and cut corners on the math. We wanted one that's genuinely accurate, genuinely free, and respectful of your data.

Our calculators use real ephemeris data and resolve historical timezones so your chart matches paid astrology software — and because everything runs in your browser, your birth details never leave your device. No accounts, no email walls, no tracking of who you are.

Astrology is a tool for reflection and self-understanding, not prediction. We present it that way: clearly, accurately, and without the pressure to buy a reading.

Questions or feedback? Reach us at hello@chartlune.com.