Read the sky you were born under
Discover your sun, moon and rising signs and your complete natal chart — calculated with professional accuracy, instantly, and entirely in your browser.
Every calculator you need
26+ free astrology & numerology calculators — all instant, all private.
Birth chart & planet signs
Love & relationships
Houses & points
Cycles, forecasts & numerology
Professional accuracy
Real ephemeris positions with correct historical timezones — not approximations.
Instant & free
Your full chart in seconds. No account, no paywall, no waiting.
Truly private
Everything is calculated in your browser. Your birth data never leaves your device.
Questions, answered
Is ChartLune free?
Yes — every calculator, chart wheel and interpretation is completely free, with no sign-up and no email required.
How accurate are the charts?
We use professional-grade ephemeris data and resolve historical timezones from your birth city, so results match paid astrology software.
Is my birth data private?
Completely. All calculations run in your browser — your birth details are never sent to a server or stored.