About iching.tools

iching.tools is a free site for consulting and studying the I Ching (易經, the Book of Changes). You can cast a reading with three coins, look up all 64 hexagrams and their 384 lines, and read guides to the method. It is built and maintained by a small independent team.

Where the texts come from

• Chinese text. The received text of the Zhouyi (周易): the Judgment (卦辭) and line texts (爻辭), with the Tuan (彖傳) and Xiang (象傳) commentaries from the Ten Wings.
• English. James Legge's translation of 1882 (The Sacred Books of the East, vol. 16), which is in the public domain.
• Other languages. Where a classic translation in that language is available to us we show it and name it on the page; otherwise the passage is machine-translated and marked as such.
• Notes and guides. The plain-language notes under each hexagram and the guides in the Learn section are our own. We write them with the help of AI tools, and each one points back to the classical passage it explains.

How readings are calculated

• Coin tosses are made on the server with a cryptographic random source, with the same odds as three fair coins. The animation only shows the result.
• Hexagrams, changing lines and related hexagrams (changed, nuclear, inverse, opposite) are worked out by code from the six tosses. Nothing in the chart is written by AI.
• AI readings are optional and clearly labelled. The AI is given the calculated chart and the classical text and writes an interpretation in plain language; it cannot change the chart.
• Birth charts (BaZi, Zi Wei Dou Shu) use true solar time at the birthplace and the solar-term boundaries, and each result page lists the conventions it used.

What it is not

The I Ching is a classical text and a way of reflecting on a decision. A reading is not a prediction and not medical, legal or financial advice.

Corrections and contact

If you find a mistake in a text, a translation or a calculation, write to support@iching.tools. We fix errors and reply within two working days. See also the contact page and our privacy policy.