Yes, all core features of K-SAJU are completely free. Saju analysis, face reading, daily fortune, and result sharing are all available without any registration or sign-up.
Enter whichever date you know accurately. K-SAJU automatically handles solar↔lunar conversion based on the Korean Manseryeok (萬歲曆) system, including leap month adjustments. Most government-issued birth dates use the solar calendar.
You can still receive meaningful analysis using just the Year, Month, and Day pillars. However, including the Hour Pillar provides deeper insights into late-life fortune, children's fortune, and hidden potential. If possible, check your birth certificate or ask your parents.
Face analysis is entirely optional. Saju analysis alone provides comprehensive results. Adding face reading activates a synergy bonus that unlocks the Charm stat and provides more dimensional insights. Simply tap 'Skip' during the face analysis step.
Analysis results are automatically saved in your browser's local storage. Revisiting from the same device and browser shows your previous results. You can also download your results as an image card through the sharing feature for permanent safekeeping.
Visiting K-SAJU daily builds a consecutive streak count. Reaching certain milestones unlocks special content like Hidden Talent Analysis, Gold Share Card Theme, and Past Life Analysis. Missing a day resets your streak, so visit daily!
Saju Theory
Western astrology is based on the sun's position among 12 zodiac constellations at birth, while Saju analyzes the Heavenly Stem and Earthly Branch combinations across four time units (year, month, day, hour). Saju offers finer granularity (~518,400 combinations) and uses the Five Elements' generating and overcoming cycles for deeper analysis.
No, even people born at the same date and time don't have identical destinies. Saju reveals innate potential and tendencies, but actual life paths differ greatly based on environment, education, effort, and choices. Gender and the direction of Daeun progression also create different interpretations for the same birth chart.
Not necessarily. Rather than perfect balance, having certain elements stronger or weaker often creates distinct personality traits and talents. For example, someone strong in Fire tends to be passionate and expressive, while someone strong in Metal excels in decisiveness and analysis. The key is understanding your elemental structure and leveraging your strengths.
Gyeokguk classifies the overall structure of a Saju chart, primarily determined by the relationship between the Month Branch's energy and the Day Master. Types include Sikshin-gyeok (Food God), Sanggwan-gyeok (Wounded Officer), Jeongjae-gyeok (Proper Wealth), and many others — each representing different personality types and life patterns. K-SAJU displays your Gyeokguk as an RPG character class.
Daeun (大運) shifts every 10 years, representing life's major currents, calculated from the Month Pillar. Seun (歲運) changes annually. If Daeun is a great river, Seun is the waves upon it. K-SAJU's weekly fortune combines Seun with daily fortune (Ilun) to analyze each day's energy.
Privacy & Technical
No. K-SAJU processes all data entirely within your browser. Birth dates, face photos, and personal information are never transmitted to or stored on any server. Analysis results are kept only in your browser's local storage and are deleted when you clear browser data.
MediaPipe's facial recognition runs completely locally in your browser. Captured photos and facial landmark data are never sent to any external server. After analysis is complete, all image data is immediately cleared from memory.
K-SAJU is built as a Progressive Web App (PWA), so basic features work offline after your first visit. Add it to your home screen to use it like a native app, and you can review previously saved results without an internet connection.
K-SAJU works on all modern browsers including Chrome, Safari, Firefox, and Edge. Camera functionality for face analysis requires an HTTPS environment and is fully supported on mobile browsers. For the best experience, use the latest version of your browser.