Free online tool — no sign-up
Upload a Chinese EPUB and get the first fifteen pages back in Vietnamese. More than half of Vietnamese vocabulary came from Chinese — which makes this pair easier than most, and creates a trap that catches translators who rely on it.
The first 15 pages of text are sent to our server to be translated. The file itself stays on your device.
The borrowing happened a long time ago and then stopped. Sino-Vietnamese words kept the meanings they had when they arrived, while the Chinese words they came from went on changing. So a word that looks like an obvious match sometimes is not: the Vietnamese form preserves a classical sense that modern Chinese no longer uses. A translator that trusts the resemblance produces text that is fluent, plausible and occasionally wrong.
The second problem is the one Chinese does not solve for you. Chinese pronouns say nothing about age; Vietnamese pronouns say almost nothing else. Every line of dialogue has to be assigned a relationship the Chinese never stated.
Both are why the model reads the whole book before translating: the cast, their relative ages, the recurring terms and the names go into a guide, and the sample is written against it.
A DRM-free EPUB. The file stays on your device; only the text of the sample is sent.
The cast and their relative ages are mapped once, which is what makes the Vietnamese pronouns come out consistently.
About 4,500 words, translated as continuous prose rather than through a table of character correspondences.
A complete EPUB with the book's own styling. Vietnamese diacritics render everywhere.
Age relationships are inferred. Chinese pronouns do not carry them. The book usually shows who is older; where it does not, the guide makes a consistent choice rather than a certain one.
Resemblance is not equivalence. Sino-Vietnamese words often preserve older meanings than their modern Chinese counterparts, and the translation follows the meaning rather than the resemblance.
Fifteen pages, not the book — about 4,500 words — and the text is sent to a server and discarded when the job ends.
For formal, abstract and technical language, yes, and considerably. The trap is assuming it always holds: a share of Sino-Vietnamese words kept the meaning they had centuries ago while modern Chinese moved on, so the translation follows what the sentence means rather than what the syllables look like.
In their Sino-Vietnamese readings, which is the established convention for Chinese names in Vietnamese — and the same name gets the same reading on every page, which is what reading the whole book first is for.
Yes, both. The script does not change how the text is read, and a book in either set is translated the same way.
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 Vietnamese next to the Chinese, with your position synced between devices.
Open DualBook