Astrologer Features

Astrologer is a browser-based professional astrology workspace. It calculates birth charts, synastry, transits, and astrocartography with the Swiss Ephemeris, turns the results into plain-English interpretation, and adds AI readings, a structured Academy course, live practitioner sessions, and a community — free to start, on any device.

Open Astrologer free

Who Astrologer is for

Beginners: People new to astrology who want an accurate chart explained in plain English, with a structured path to learn more.
Students: Learners who want to read charts themselves, with an Academy course, guides, and a glossary alongside professional tools.
Professional astrologers: Working practitioners who need Swiss Ephemeris accuracy, advanced techniques, client charts, and session tools — on any device, with no desktop license.
Couples & relationship readers: Anyone exploring compatibility through real synastry and composite charts rather than a single percentage.
Travelers & movers: People using astrocartography and relocation to choose where to live, work, or travel.
Financial astrologers: Traders and researchers studying company charts and market timing through an astrology lens.

Birth charts

A complete, interactive natal chart workspace built on the Swiss Ephemeris.

Interactive chart wheel — A clickable natal chart wheel with planets, signs, houses, and angles you can explore placement by placement.
Aspect grid — A full aspect table showing every major and minor angle between planets, with orbs.
Essential dignities — Rulership, exaltation, detriment, and fall scoring to weigh how strong each planet is.
12 house systems — Placidus, Whole Sign, Equal, Vehlow, Koch, Porphyry, Regiomontanus, Campanus, Topocentric, Alcabitius, Meridian, and Morinus.
Tropical & sidereal zodiacs — Switch between tropical and sidereal (Lahiri, Fagan) modes per chart.
Plain-English interpretation — Every placement explained in readable language, not just glyphs and tables.
PNG & PDF export — Export any chart as a high-resolution image or PDF for clients, study, or sharing.
Saved charts & notes — Save unlimited charts (with Pro) and attach your own notes to each one.

Relationships

Read any relationship with real synastry and composite tools.

Synastry biwheel — Overlay two charts to read the inter-aspects and house overlays that drive a relationship.
Composite charts — A midpoint composite that reads the relationship as its own entity, with directional aspects.
House-overlay heatmap — See whose planets land in whose houses at a glance.
Progressed comparisons — Compare progressed charts to track how a relationship evolves over time.
AI compatibility readings — Plain-English relationship readings grounded in the actual synastry, covering chemistry, communication, and longevity.

Timing

The predictive techniques working astrologers actually use.

Transit timeline — Track current and upcoming transits to your chart, with exact dates and retrograde passes.
Annual profections — Year-by-year house activation with lord-of-the-year highlighting.
Secondary progressions — Progressed charts with applying and separating logic.
Solar & lunar returns — Cast the return chart for any year or month.
Electional & void-of-course — Scan a window for favorable timing, with void-of-course Moon warnings flagged automatically.
Graphic ephemeris — A time-series view of planetary motion, stations, and ingresses.

Astrocartography & locational

Map your chart onto the world to guide moves, travel, and work.

Astrocartography map — Full set of planetary lines — rising, culminating, setting, and anti-culminating — across a world map.
Parans & crossings — See where planetary lines cross or share a latitude for combined influences.
Live relocation — Recast your chart for any city in seconds to test a potential move.
Local-space lines — Directional lines from the city you currently live in.

Advanced techniques

Depth beyond the ten classical bodies — toggle 50+ asteroids, 41 fixed stars, and the classical lots straight onto the wheel.

Asteroids & minor bodies — Chiron and the four main asteroids — Ceres, Pallas, Juno, Vesta — plus 50+ named minor bodies grouped into centaurs, trans-Neptunian objects, near-Earth asteroids, and love and fate points. Toggle any of them onto the wheel.
Declinations & parallels — Out-of-sign connections by declination — parallels and contraparallels with directionality, plus out-of-bounds planets flagged automatically.
Fixed stars — 41 fixed stars graded by magnitude — the four royal Watchers plus bright, notable, and minor stars — shown conjunct your planets and angles.
Arabic parts & lots — The classical lots — Fortune, Spirit, Eros, Marriage and more — a dozen on the wheel and 35+ in the Arabic Parts editor, each computed from your exact ascendant.
Custom orbs — Set your own orb values per aspect for precise, personalized chart work.
3D galactic chart — A real-time three-dimensional view of your placements with aspect beams.

Learning & interpretation

Go from “I have a chart” to “I can read this chart.”

AI readings — On-demand readings grounded in your exact placements, not generic Sun-sign text.
Astrologer Academy — A structured course covering planets, signs, houses, aspects, synthesis, timing, relationships, horary, and locational work.
Astrology blog — In-depth guides on synastry, transits, birth charts, and technique.
How-to guides — Step-by-step tutorials for reading charts, synastry, transits, and astrocartography.
Glossary — Plain-English definitions of astrology terms, cross-linked to the tools.

Practice & community

Tools for working astrologers and the people who hire them.

Live practitioner sessions — Audio and video readings with working astrologers, auto-transcribed and replayable.
Replay Q&A — Ask follow-up questions on a recorded session; answers reference your transcript and chart.
Practitioner directory — Browse and book astrologers by specialty.
Community — Chart discussions, learning threads, and shared research tied to real charts.
Reading lists — Collect birth-chart requests through one shareable link and deliver readings.

Specialized tools

Focused workspaces for specific kinds of astrology.

Financial astrology — Company charts from IPO dates, with transits overlaid on price and news.
Celebrity charts — A library of preloaded charts for public figures to study and compare against.
Free tarot — A five-card Rider-Waite spread with plain-English interpretation.
Horary readings — Cast and judge a chart for a specific question at the moment it is asked.