Sajugazer — Free Four Pillars (Saju) Chart Calculator

A free Saju (Four Pillars of Destiny) analysis platform. Generate your birth chart, explore personalized life-cycle readings, and learn the ancient system of Eastern metaphysical philosophy — all in your browser, with no sign-up required.

Generate My Chart

What is Sajugazer?

Sajugazer is a browser-based Saju (四柱) analysis platform that reads the cosmic energy encoded in your birth time. Saju, known as the Four Pillars of Destiny, is one of the oldest systems of self-understanding in Eastern philosophy. It uses the year, month, day, and hour of your birth to generate eight characters — four Heavenly Stems and four Earthly Branches — that form a unique energetic blueprint of your personality, relationships, career potential, and life timing.

Our engine computes your Four Pillars chart using astronomical algorithms, then interprets it through the traditional frameworks of Ten Stars (Sipseong), Fateful Stars (Sinsal), 12 Stages of Energy (Unseong), and Five Element balance. All computation runs entirely in your browser — no birth data is transmitted to any server.

How It Works

Step 1: Go to the chart calculator and enter your birth year, month, day, hour, minute, gender, and birth region.

Step 2: Click "View Results!" to generate your Saju chart. You will see your Four Pillars, Ten Stars, element proportions, and Decade Analysis timeline.

Step 3: Use the analysis tools to get detailed readings — from a comprehensive Total Analysis covering personality, love, and wealth, to time-specific Daily, Monthly, Yearly, and Decade analysis readings.

Saju Analysis Tools

Total Analysis

Your most comprehensive chart reading. Covers personality traits, success patterns, love tendencies, and wealth potential — all derived from the interplay of your Four Pillars and Ten Stars.

Daily Analysis

See how today's cosmic energy interacts with your birth chart. Reveals the Ten Star relationship of any chosen date to your Day Master.

Monthly Analysis

A broader lens than daily readings. Examines the month's governing energy and its elemental relationship to your chart.

Yearly Analysis

Understand the major themes and energy shifts of any given year. Reveals which Ten Star governs the year for you.

Decade Analysis

The longest-range perspective. Shows the ten-year energy cycles that shape career phases, relationship milestones, and periods of growth.

Learn Saju

What is Saju?

The origin, philosophy, and core principles of Four Pillars of Destiny. Understand Yin-Yang, the Five Elements, and why Saju is a practice of self-reflection.

How to Read Saju

A practical guide to reading a Four Pillars chart. Learn how to identify the Day Master, interpret the pillars, and extract meaning from element interactions.

Ten Stars (Sipseong)

The ten relational archetypes that define how your Day Master interacts with every other element in your chart.

Fateful Stars (Sinsal)

Special star formations derived from the Earthly Branches. Highlights extraordinary talents, karmic patterns, and pivotal life themes.

12 Stages of Energy (Unseong)

The twelve-phase life cycle of elemental energy — from Birth through Peak, Decline, and Renewal.

Strong vs Weak Day Master

A step-by-step methodology for assessing Day Master strength — the foundation for accurate Ten God interpretation.

The Byeong-O Year 2026 (丙午年)

A deep energy analysis of the Fire Horse cycle. Understand the double-Fire configuration of 2026 within Five Phase theory and its contrast with the Water-dominant years of the early 2020s.

Noble Stars in Saju

The four noble stars — Heavenly Benefactor, Lunar Virtue, Scholarly Star, and Supreme Star — and how they function as subtle modifiers in a Four Pillars chart.

Earthly Branch Clashes (Chung)

The six major branch oppositions — Ja O, Myo You, Jin Sul, Chuk Mi, In Sin, and Sa Hae — and how their geometric structure drives movement and tension in a Four Pillars chart.

Yangin Type (羊刃 劍形)

Yangin (양인) and the five stem-blade pairs — what concentrated yang intensity means for personality, chart structure, and life timing.

Hidden Stems in Saju

The internal structure of every Earthly Branch — how Yeogi, Junggi, and Jeonggi are derived and why they are essential for accurate rooting analysis.

Useful God (Yongshin)

A structural guide to identifying the functional regulator in any Saju chart — how Yongshin emerges from the Five Categories to restore circulation and resolve chart tension.

甲 (Gap) Wood Day Master

The towering tree — upright, ambitious, and principled. Explore the personality traits and growth patterns of Gap Wood.

乙 (Eul) Wood Day Master

The flexible vine — adaptive, graceful, and resilient. Discover how Eul Wood shapes personality through gentle persistence.

丙 (Byeong) Fire Day Master

The blazing sun — radiant, passionate, and generous. Explore how Byeong Fire illuminates with warmth and charisma.

丁 (Jeong) Fire Day Master

The candle flame — focused, perceptive, and quietly illuminating. Discover Jeong Fire's insight and emotional depth.

戊 (Mu) Earth Day Master

The great mountain — stable, dependable, and immovable. Learn how Mu Earth provides grounding strength.

己 (Gi) Earth Day Master

The fertile farmland — nurturing, productive, and receptive. Explore Gi Earth's quiet adaptability.

庚 (Gyeong) Metal Day Master

The raw sword — decisive, righteous, and reforming. Discover Gyeong Metal's uncompromising sense of justice.

辛 (Sin) Metal Day Master

The polished jewel — refined, precise, and aesthetically sensitive. Learn how Sin Metal values discernment.

壬 (Im) Water Day Master

The vast ocean — powerful, encompassing, and endlessly flowing. Explore Im Water's strategic wisdom.

癸 (Gye) Water Day Master

The morning dew — intuitive, gentle, and quietly nourishing. Discover Gye Water's spiritual depth.

Want to see what a reading looks like before generating your own chart?

View Example: Total Analysis — Male, Jan 1, 1990

This service is for self-reflection and philosophical insight, not deterministic prediction. Decisions remain your own. | About · Contact · Privacy · Terms · Disclaimer