Explore 64 Hexagrams
Browse the complete list of 64 hexagrams, then learn how lines, trigrams, and changing lines work.
I Ching / Yijing / 易經
About the I Ching App & Website
A free website and mobile app for exploring all 64 hexagrams, learning practical consultation methods, and returning to the Book of Changes as a tool for thoughtful reflection.
Purpose and features
What the Project Offers
The project makes it easier to study the I Ching’s patterns of change and apply them as prompts for reflection and perspective. It does not promise guaranteed predictions or replace your own judgment.
Learn the Book of Changes
Start with what the I Ching is and follow its development in the history guide.
Consult Thoughtfully
Use the step-by-step consultation guide to frame a focused question, cast six lines, and interpret the result with care.
Creator
Developed by PkDeveloper Agency
Software developer
PkDeveloper Agency develops and maintains the website and mobile app with a focus on clear navigation, useful learning paths, accessibility, and dependable product improvements.
User-Centered Design
Traditional visual cues are paired with readable layouts and familiar controls so newcomers and returning readers can find their way around.
Transparent Content Status
The hexagram Overviews are introductory and under review, and are not a scholarly edition. Where this material comes from sets out what each kind of text on the site is made from.
Continuous Improvement
The project evolves through practical product work: reviewing content, refining accessibility, improving app compatibility, and making each learning path easier to use.
Editorial method
Where this material comes from
Two kinds of text sit on this site and they are not made the same way, so it is worth saying which is which.
The guides
Each of the four guides lists its references at the foot of the page. Three recur: the Chinese Text Project for the received text, the Stanford Encyclopedia of Philosophy for how the book has been read and argued over, and Joseph Adler's The Yijing: A Guide for structure and divination practice. The history page also cites an inscribed oracle bone held by the Smithsonian, and the introduction cites the Chinese University of Hong Kong on the character 易.
The hexagram Overviews
The Overview on each of the 64 hexagram pages is an interpretive reading, rewritten in plain English for readers worldwide. It is not a translation of the classical text and does not reproduce one. Every hexagram page says so under its Overview.
What is worked out rather than written down
The trigrams named on a hexagram page, its nuclear trigrams and the figures it is related to are all derived from its own six lines rather than typed in by hand. They cannot drift away from the figure they describe, and an error in one would be the same error in all 64.
What is deliberately missing
The Judgment and the six line texts are not published here. The Chinese is ancient and free to use, but a translation is a separate work with its own copyright: James Legge's of 1882 has passed into the public domain, the Wilhelm and Baynes of 1950 has not. The draft this project inherited records no source, and it carries signs of more than one. Until that is settled, publishing it could reprint someone else's translation, so it stays unpublished.
App Store and Google Play
Get the Free I Ching App
The free, ad-supported app includes all 64 hexagrams, a guided consultation flow, locally stored reading history, and selected content available offline. No account is required.
Entirely optional
Support the Project
Optional contributions help with hosting, maintenance, app development, and content improvement. Contributing does not change access to the website or app.
Learn how contributions support the projectQuestions and feedback
Contact PkDeveloper Agency
Send a question, report a problem, or suggest an improvement. Please do not include sensitive personal information.
You can also email support@bookiching.com directly.