Free Ziwei Chart

Build the raw 12-palace chart first, then move into deeper interpretation. View the major stars, Body Palace, transformations, and decade cycles in one clear Ziwei chart.

★ 4.8 Rating
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What Our Users Are Saying

We take pride in delivering thoughtful reports that help people see their timing, patterns, and next steps more clearly.

GitHub Open Source

4.8 average customer rating (800+ reviews)

32,000+Active Users
20,000+Detailed Reports
160,000+AI Chat Sessions
6B+AI Tokens Generated
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System Architecture

Deterministic logic first. AI explanation next.

Each tool begins with declared inputs and deterministic rules. Birth-chart systems keep their calculated structure visible; AI explains those results without rewriting the underlying facts.

How a result is produced

3 steps
  1. Structured inputs

    Birth details, questions, selections, or cast inputs are normalized for the relevant tool.

  2. Rules engine first

    Each tool produces its chart, draw, cast, or core facts from its declared rules.

  3. AI explanation

    AI interprets the visible facts and structure without changing the deterministic inputs.

Core analysis journeys

  1. Ziwei Dou Shu

    Ziwei Dou Shu

    Review the 12 palaces, major stars, Four Transformations, and decade cycles while keeping chart facts separate from interpretation.

  2. Astrology

    Astrology

    Inspect reproducible chart placements and keep the interpretive layer separate from personality, relationship, career, or event facts.

  3. Combined Reading

    Combined Reading

    Compare 2-3 independently calculated systems axis by axis. Similar themes add perspective but do not establish empirical reliability.

  4. Vedic Astrology

    Vedic Astrology

    Separate calculated placements, traditional varga topics, and dasha periods from bounded AI reflection for relationships, work, and current choices.

  5. Human Design

    Human Design

    Understand your natural rhythm, decision timing, and pressure pattern in plain language, with practical guidance for work, relationships, and this week.

  6. Sukuyo Reading

    Sukuyo Reading

    Use one frozen birth-mansion profile to explore traditional themes and their practical application without turning symbolism into certainty.

More ways to begin

Independent experiences

  1. BZTI Archetype

    BZTI Archetype

    Generate a Bazi archetype card and inspect chart-signal consistency; the result is reflection, not diagnosis or measurement.

  2. Huangli

    Huangli

    Look up Huangli fields while keeping calendar data separate from traditional interpretation.

  3. Daily Fortune

    Daily Fortune

    Compare symbolic daily themes and time windows, then verify real conditions before acting.

OpenFate Editorial

From core concepts to practical interpretation

Editorial research on Bazi, relationships, wealth, annual timing, and Eastern metaphysics.

Open Source · MCP · Agent Skill

OpenFate Bazi MCP Server

A production-grade Bazi calculation server for Claude, Cursor, Codex, Cline, and every MCP-compatible AI agent.

npx -y @openfate/bazi-mcp
npm v0.2.6MCP Registry listedMIT License

Frequently Asked Questions

Everything you need to know about reports, credits, and how it works.

Credits & Account

Usage & Features

Charting & Algorithm Logic

Technical & Developers

Troubleshooting

Privacy & Legal

About Me

Quick Answer

Generate your complete Ziwei Doushu chart for free — featuring a 12-palace layout, major stars, Four Transformations, and decade cycle structure.

What You Get

  • Generate a complete, high-fidelity Ziwei chart for free with all key markers included.
  • Know exactly what palace and star data appears — including transformations and decade cycle timing.
  • Follow a clear path from chart output into the broader Ziwei reading and interpretation flow.

Best For

  • Users focused on viewing their native 12-palace layout and star distribution.
  • People checking palace positions, star placements, and transformation structure.
  • Readers comparing technical Ziwei output with articles or other tools.

Ziwei Chart FAQ

Common questions about the Ziwei chart tool and how to get started.

What does the Ziwei chart page actually show me?

It shows your complete 12-palace layout with every major star and its palace position, Four Transformation markers, and your decade cycle timeline.

How is the Ziwei chart page different from the Ziwei reading page?

The chart page shows raw structural data — palace positions, stars, and transformation markers. The reading page interprets what that data means for your life trajectory.

What should I do after generating my Ziwei chart?

Open the Ziwei reading page next — it takes your raw chart data and walks you through a palace-by-palace interpretation of your life story.