Everything you can do

Explore Sigastra — All the Astrology Tools

Free calculators, daily horoscopes, moon calendars and the deeper Plus & Pro charts — grouped by what you want to explore. Everything is computed from real Swiss-Ephemeris astronomy.

Your Chart

🌌Birth ChartFreeYour full natal chart, computed free🌅Rising SignFreeFind your Ascendant🌙Moon SignFreeYour emotional inner world☄️Advanced NatalProChiron, Lilith & the asteroids

Horoscopes

☀️Daily HoroscopeFreeToday, for every sign📅Weekly HoroscopeFreeYour week ahead🗓️Monthly HoroscopeFreeThe month in the stars

Love & Relationships

💞Zodiac CompatibilityFreeSign-by-sign pairings💘Synastry ChartProTwo full charts compared❤️‍🔥Composite ChartProYour relationship as one chart

Sky & Moon

🌕Moon Phase TodayFreeLive phase, illumination & sign🌝Full Moon CalendarFreeNext full moon & all dates🌚New Moon CalendarFreeNext new moon & all dates☿️Mercury RetrogradeFreeIs it retrograde right now?📆Astrological CalendarFreeRetrogrades, ingresses & moons🪐Transit ChartProYour current transits, live🪐Saturn ReturnFreeWhen is yours & what it means

Tarot

🃏TarotPlusCard of the day & the major arcana

Returns

🎂Solar ReturnProYour astrological year ahead🌙Lunar ReturnProYour month ahead⏳Progressed ChartProHow your chart evolves over time

Fun

🐉Chinese ZodiacFreeYour animal, element & match♈Zodiac Sign DatesFreeWhat's my star sign?

Learn

📖Learn AstrologyFreeGuides, concepts & glossary♒The Zodiac SignsFreeAll 12 signs explained🔭The PlanetsFreeWhat each planet means🧭Core ConceptsFreeCharts, houses, aspects & transits

For Business

🧩Embed WidgetsFreeFree horoscope & moon widgets🤝Partners & APIFreeSyndication & astrology data API
Start with your birth chart

Every reading begins with your real natal chart — computed free from your birth date, time and place.

Calculate your birth chart — freeCompare plans