Free Astrology Tools
Three systems — Zi Wei Dou Shu, BaZi and Western astrology — plus the visualizations and theme readings that connect them. Every tool below is free, deterministic, and designed for reflection rather than prediction.
Star Chart (Zi Wei Dou Shu)
Over a hundred stars mapped across twelve life palaces. Calculated right in your browser — your birth details never leave the page.
Open the Star Chart → ChartFour Pillars (BaZi)
Your eight characters, Ten Gods, and the element at your center. The Day Master lens on personality, strengths and blind spots.
Open the Four Pillars → ChartWestern Chart
Sun, Moon, Rising, all ten planets, houses and aspects — with your Zi Wei Dou Shu and BaZi charts side by side for the same birth moment.
Open the Western Chart → ChartCompatibility Compare
Two people, two charts, two systems. A structural read of how the two charts relate — not a verdict on the relationship.
Open the Compare → VisualLuck Cycle Timeline
Your Zi Wei Dou Shu decade-by-decade luck cycles on one timeline, with the Four Transformations marked. See the seasons before they arrive.
Open the Timeline → ReadingTheme Readings
Focused readings on the three questions people ask most: career, love, and wealth. The same chart, read through one lens at a time.
Open Theme Readings → ReferenceStar Encyclopedia
Every star in the Zi Wei Dou Shu system, explained: archetype, psychology, and what it colors when it lands in your palace.
Browse the Stars → VisualInteractive Star Map
Filter over a hundred stars by category, element and brightness. A visual index of the entire system.
Open the Star Map → ReferenceCase Studies
Worked charts that show how the systems read real lives — the question, the chart, and the pattern that answered it.
Read the Case Studies →Why three systems?
Zi Wei Dou Shu, BaZi and Western astrology were built with different machinery. ZWDS places stars into twelve life palaces; BaZi reads eight characters through the Five Elements and Ten Gods; Western astrology tracks planets against zodiac signs. They are three maps of the same birth moment. Where they agree, the signal is strong. Where they differ, each adds a dimension. The tools on this page let you hold all three maps side by side — and decide what you see.