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Upload an English EPUB and get the first fifteen pages back in Vietnamese, as a working ebook. The model reads the entire book before it writes a word — which is the only way Vietnamese pronouns come out consistent.
The first 15 pages of text are sent to our server to be translated. The file itself stays on your device.
The place English-to-Vietnamese machine translation reliably breaks is not vocabulary. It is pronouns. English manages with you and I. Vietnamese forces a choice on every line: anh–em, ông–tôi, cậu–tớ, chú–cháu. Which pair is right depends on who these two people are to each other — their relative age, their closeness, whether one outranks the other — and a tool translating one paragraph at a time has no way to know any of that.
The result is familiar to anyone who has tried: two characters address each other one way in chapter one, differently in chapter five, differently again in chapter ten. It reads as though the book changed translators mid-scene, and no amount of hand-editing fixes it cheaply.
So before a single line is translated, the model reads the whole book and writes itself a guide: who each character is, how they stand in relation to everyone else, what the narrative voice is. That guide travels with every part of the translation, which is what holds the pronouns steady.
One more thing specific to Vietnamese: diacritics. The translation itself handles them fine; the risk is in the file. If a reading app falls back to a font with no Vietnamese glyphs, every marked vowel becomes a box. This tool replaces only the text and leaves the book's own fonts and stylesheets untouched, so a book that displayed correctly before still does.
A DRM-free EPUB. The file stays on your device — only the text is sent, and only while the job runs.
It records character names, how they address one another, tone and narrative voice. This is what keeps Vietnamese pronouns consistent.
About 4,500 words, translated as one continuous narrative rather than as isolated sentences.
A complete EPUB. Open it in the browser reader here, save it, or continue with the whole book in the app.
Fifteen pages, not the book. The rest stays in the file in English, with a marker where the sample ends.
The text is sent to a server. The converters on our tools page run entirely in your browser; this one cannot, because the model does not live on your machine. The text is discarded when the job finishes and the file is never uploaded.
Pronouns are a judgement call, not a rule. The guide makes them consistent; it cannot make them always right. A translator who knows the book will still disagree with some of them.
Wordplay and humour flatten. Meaning comes through well; a pun does not.
Because English does not carry the information. "You said" can be anh nói, ông nói or mày nói — three quite different sentences. Choosing correctly means knowing what these two people are to each other, and that only exists across the whole book.
Yes. Only the text is replaced; the book's own fonts and stylesheets are untouched. If it displayed correctly before translation, it still will.
About 4,500 words — roughly fifteen pages. Measured in words, so a short book and a long one get the same deal. Five books a day per person.
No. Your browser opens the EPUB on your own machine, extracts the text and sends only that. Nothing is kept once the job finishes, and there is no account to attach it to.
No. Books from Kindle, Kobo or Apple carry DRM and are locked to your account. We cannot open them and do not help remove DRM. Use your own writing, Project Gutenberg, Standard Ebooks, or any publisher selling unlocked files.
About forty seconds for a full novel: roughly ten to read the whole book, thirty to translate the sample. Progress is shown, and a dropped connection does not lose the result.
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The app translates the entire book with the same engine, shows it beside the English, and keeps your place across devices.
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