A straight answer about the sky.
Zodiacs.org is a free astrology reference built on one idea: the astronomy can be exact even when the interpretation is a tradition. Every chart here is computed from the real positions of the planets, explained in plain language, and kept on your own device.
Why it exists
Most astrology sites are either beautiful and vague or accurate and unreadable. The calculators that get the math right tend to look like tax software; the ones that feel good tend to hand-wave the numbers. We wanted a third option — a place where you can get your full birth chart in about twenty seconds, see the exact degrees behind every claim, and read what they mean in ordinary words.
So nothing is asserted without its receipt: a horoscope line comes with the transit and the time it is exact; a sign on a cusp date comes with the year it actually changed. You never have to take a number on faith, because the number is printed next to the sentence.
How the charts are computed
Positions come from an open-source astronomical engine accurate to about an arcminute, and every change to it must pass an automated accuracy gate against NASA JPL reference data before it ships. The whole method — the ephemeris, the house systems, how historical time zones are handled — is written out on the methodology page. If you want to check us, you can.
Your data stays yours
The engine runs in your browser, so the birth date, time, and place you enter are never sent to us. Charts you save live on your device unless you choose to sync them with a free account. There are no ads and no cross-site tracking. The full detail is on theprivacy page.
Two registers under one roof
Most of the site is the astrology reference — guides, calculators, horoscopes, and the birthday pages. Alongside it lives thecollector's wing: the original Zodiacs registry, a museum-toned catalogue of the twelve as a set of records, kept in its own voice. The two share one design but keep their own registers; the astrology surfaces stay free of any market language, by design.
Who runs it
Zodiacs.org is an independent project, not a venture-backed company or a content mill. It is maintained by a small team who care about getting the astronomy right and the writing honest. There is no upsell here and no premium tier gating the basics — the calculators are free because the cost of running them, once the math is on your device, is close to nothing.
Get in touch
Corrections, questions, press, or a request about your data — write tohello@zodiacs.org. If you have spotted an astrological or astronomical error on a page, tell us which page; accuracy reports are the ones we answer first.