Free online tool — no sign-up
Upload a Chinese EPUB and get the first fifteen pages back in Korean. Most of Korean's formal vocabulary came from Chinese — but modern Korean does not write the characters, so the relationship is audible rather than visible.
The first 15 pages of text are sent to our server to be translated. The file itself stays on your device.
학생 is 學生. The word is the same word; Korean simply stopped writing it in Han characters, so a Korean reader hears the connection without seeing it. For translation that is an advantage: a large share of abstract, academic and technical vocabulary has direct counterparts, and formal Chinese prose comes into Korean more smoothly than into any European language.
The grammar is where the work is. Chinese puts the verb in the middle and inflects nothing; Korean puts it at the end and hangs particles and honorific endings off it. So a Chinese sentence has to be rebuilt, and the rebuilding requires an answer to a question Chinese never asks: how do these two people stand to each other?
The model reads the whole book first to answer it, mapping the cast and their relationships along with the names and the recurring terms before any translating begins.
A DRM-free EPUB. The file stays on your device; only the text of the sample is sent.
The cast and their relationships are mapped once, which is what fixes the Korean speech levels for the whole sample.
About 4,500 words, rebuilt as Korean sentences with the verb where Korean puts it.
A complete EPUB with the book's own styling. Hangul renders in essentially every reader.
Speech level is inferred. Chinese does not encode it anywhere, so the guide makes the inference consistent rather than certain.
Shared vocabulary is not written shared. Korean uses Hangul, so the Sino-Korean word that matches a Chinese one looks nothing like it on the page — useful for a translator, invisible to a reader.
Fifteen pages, not the book — about 4,500 words — and the text is sent to a server and discarded when the job ends.
Yes, considerably, for formal and abstract language — a large part of Korean's higher vocabulary comes from the same Chinese roots. Everyday words diverge completely, so the benefit is clearest in non-fiction and academic writing.
From the relationships mapped across the whole book, then held. Chinese carries none of this information, so deciding per paragraph produces characters whose footing with each other changes every few pages.
In their Sino-Korean readings, which is the established convention, with the same reading used on every appearance — one of the things the guide fixes before translating starts.
About 4,500 words, roughly fifteen pages, five books a day per person.
All free AI book tools · Free converters that run in your browser
The app runs the same engine across the entire book and can show the Korean next to the Chinese, with your position synced between devices.
Open DualBook