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Saju Compatibility Test

Calculate your Saju compatibility for free. Share a link and check results together — no sign-up needed.

You don't need to enter your full name.

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What is the Saju Compatibility Test?

The Saju Compatibility Test is a free online tool based on the principles of Saju (Four Pillars of Destiny), a traditional East Asian astrology system that analyzes personality and relationships using birth date and time. By entering your date of birth, the tool automatically extracts your Day Stem (天干, Heavenly Stem) and Day Branch (地支, Earthly Branch), then analyzes the Five Elements (木 Wood, 火 Fire, 土 Earth, 金 Metal, 水 Water) relationships between two people. It calculates compatibility scores based on harmonious (相生) and conflicting (相剋) elemental interactions, plus Branch combinations like Six Harmonies (六合), Three Harmonies (三合), and Clashes (沖). The viral link feature lets you send a unique URL to someone — they simply enter their info and both see the result instantly. All calculations run entirely in your browser with zero server communication, keeping your personal data completely private. Save results as images or share via WhatsApp, Telegram, X, and more.

Common Use Cases

💑
Couple Compatibility
Check your Saju compatibility score with your partner and discover what elemental patterns shape your relationship. Use the viral link to reveal the result together in real-time.
👫
Friendship Test
Send the link to friends and test your friendship compatibility. Share results on social media for fun conversations and viral engagement with your circle.
🎉
Party Icebreaker
Use this tool at meetups, blind dates, workshops, or parties as a fun icebreaker. Check compatibility with everyone and spark conversations instantly.
📱
Save & Share Results
Download your compatibility result as an image optimized for Instagram Stories, or share directly via KakaoTalk, WhatsApp, Telegram, and X for maximum viral reach.

How to Use

  1. 1
    Enter Your Info
    Enter your nickname or initial, gender, date of birth (solar calendar), and birth time. If you don't know your birth time, check the "I don't know" box to calculate using Day Stem and Branch only.
  2. 2
    Generate & Share Link
    After entering your info, press "Generate Link" to create your unique invitation URL. Share it via KakaoTalk, WhatsApp, Telegram, X, or simply copy the link.
  3. 3
    Partner Enters Info
    When your partner opens the link and enters their information, the compatibility result is calculated instantly in the browser — no server communication needed.
  4. 4
    View & Save Results
    See your compatibility score, relationship type (from Soulmate to Effort Couple), and Five Elements analysis. Save the result as an image or copy the link to share it further.

Frequently Asked Questions