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Astrology software, done right.

A precision charting engine and a beautiful vector wheel — calculate, visualize and study any chart, with professional tools for progressions, forecasting and timing. Want it in plain words too? Optional AI-written interpretations turn the data into a readable story — for entertainment and self-reflection.

✦ Cast a chart — free

Software & educational tools. AI interpretations are for entertainment & self-reflection. Terms · Privacy

Precision engine

Swiss-Ephemeris calculation to the arcsecond — natal, progressed, transiting and synastry positions you can trust.

The vector wheel

A living astrolabe: collision-free glyphs, degrees, decans, duads and declinations — your chart, precisely drawn.

The Astrologer Lab

Professional timing tools — progressions, the Moon Station, and an hour-by-hour motion timeline for serious chart-work.

For practitioners

Share charts with an astrologer, build a practice, and expose the mechanism — decans, duads, depositors and motions — for study.

Forecasting tools

A layered timeline of upcoming motions you can sync to your calendar — plan around the chart, with the data behind every date.

Plain-language interpretations

Optional AI-written readings translate the chart into a story you can actually use — clearly labeled for entertainment & self-reflection.

How it works

1

Calculate

A Swiss-Ephemeris engine computes precise planetary positions, house cusps, aspects and progressions for any date, time and place.

2

Visualize

The data renders as an interactive vector wheel — collision-free glyphs, degrees, decans, duads and declinations you can read at a glance.

3

Analyze

Professional tools work the chart: transits, secondary/tertiary/minor progressions, the Astrologer Lab's Moon-Station timing, and a forecasting timeline.

4

Interpret (optional)

An optional AI layer translates the computed chart into plain language. Interpretations are for entertainment & self-reflection only.

CozmoChart is astrology software and educational tooling. Charts are produced by deterministic ephemeris calculation. Any written interpretations are AI-generated and provided for entertainment and self-reflection — we make no claim to predict real-world events. See our Terms.

Pricing

Free
Free
  • Calculate & view your natal chart + vector wheel
  • Decans, duads & declinations
  • One free AI interpretation (for entertainment)
Start free
Most popular
Premium
$14.99 / month
  • The full toolkit: transits, progressions, forecasts, synastry
  • Save & revisit your charts + AI interpretations
  • Calendar-synced forecasting tools
  • Focus your study on what matters
Choose Premium
Power
Coming soon
  • Everything in Premium
  • The Astrologer Lab — progression & Moon-Station timing tools
  • See the mechanism: decans, duads, depositors & motions exposed
  • Built for astrologers, students & enthusiasts
Choose Power

Plans are configurable; prices shown are indicative. Cancel anytime.