I Ching Changing Lines Simulator
Cast the Book of Changes with the authentic three-coin method. Visual changing lines (old yin/old yang), all 64 hexagrams with full judgments, image texts, and moving line interpretations.
What You Get
- Authentic three-coin method (3 coins × 6 lines = 18 tosses)
- Visual coins: Yang (3 heads), Yin (2 heads/1 tail), Old Yang (3 tails), Old Yin (3 heads)
- 64 hexagrams built line-by-line from bottom to top
- Full Wilhelm/Baynes judgments, image texts, and moving line texts
- Changing lines highlighted with animation (old yang → yin, old yin → yang)
- Resulting hexagram (after changes) with full text
- Cast history saved locally (private, no tracking)
- Works offline — no signup, no tracking, no data collection
Recent Casts
Free Web Tool vs Premium Android App
| Feature | Free Web | Premium App |
|---|---|---|
| Authentic three-coin method | ✓ | ✓ |
| All 64 hexagrams with judgments | ✓ | ✓ |
| Visual changing lines (old yin/yang) | ✓ | ✓ |
| Full moving line texts | ✓ | ✓ |
| Resulting hexagram after changes | ✓ | ✓ |
| Nuclear hexagram & trigram analysis | ✗ | ✓ |
| Cast history with tags & export | ✗ | ✓ |
| Daily hexagram widget & notifications | ✗ | ✓ |
| Works 100% offline | ✗ | ✓ |
| No ads, no tracking, no accounts | ✓ | ✓ |
| Price | Free | $3.99 |
"The web caster showed me the changing lines visually — I finally understood how old yang becomes yin. I Ching Oracle app added nuclear hexagrams, trigram analysis, and a cast journal I use for every major decision. The daily hexagram widget is uncannily accurate."
Free vs Premium
Is the three-coin method mathematically correct?
Does the premium app need internet?
Is this a subscription?
☯️ Master the Book of Changes
You've cast the hexagram — now unlock the full oracle. The I Ching Oracle Android app gives you: nuclear hexagrams, trigram interaction analysis, cast journal with tags/export, daily hexagram widget, and offline access to all 64 hexagrams with complete Wilhelm/Baynes texts.
100% offline · No ads · No tracking · One-time payment · 7-day guarantee
Take this offline with the app
This tool runs in your browser and nothing is saved after you close the tab. The app keeps a library, a journal and works in aeroplane mode. One-time payment, no subscription, no ads.