DualBook 8 languages

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Translate a German book into Turkish

Upload a German EPUB and get the first fifteen pages back in Turkish. Both languages build long words — German by joining nouns, Turkish by stacking suffixes — and neither method survives being copied.

The first 15 pages of text are sent to our server to be translated. The file itself stays on your device.

A German compound is several nouns pushed together; a Turkish long word is one noun with a queue of grammatical endings attached. They look similar on the page and are produced by opposite machinery, so a German compound becomes a Turkish phrase or a possessive construction rather than a Turkish compound.

Borrowed names take suffixes too, and which suffix depends on how the name sounds — vowel harmony decides it. Schmidt'e but Klara'ya. Getting that wrong marks the text as machine-made more reliably than any vocabulary error.

Formality is the one thing that transfers cleanly: German Sie and Turkish siz do the same job, so the relationship is read from the source rather than inferred. And both languages put the verb at the end of at least some clauses, which makes the sentence shapes less alien to each other than most pairs here.

How it works

  1. Choose your German EPUB

    A DRM-free EPUB. The file stays on your device; only the text of the sample is sent.

  2. The model reads the whole book

    Names and recurring terms are fixed once, so the same name takes the same suffix treatment everywhere.

  3. The first 15 pages come back in Turkish

    About 4,500 words, with German compounds rebuilt as Turkish constructions rather than copied as compounds.

  4. Download, or read it here

    A complete EPUB with the translation set to wrap, so a long agglutinated word cannot push the page sideways.

Honest limits

Gender disappears, and that is Turkish. There is one third-person pronoun for he, she and it, so German's gendered pronouns simply merge — as they do in any Turkish text.

Compounds are rebuilt, not copied. Turkish makes long words a different way, so a German compound becomes a phrase.

Fifteen pages, not the book — about 4,500 words — and the text is sent to a server and discarded when the job ends.

Questions

Do German names get the right Turkish suffixes?

That is the first thing to check in the sample. Names are handled inside whole sentences rather than substituted from a list, which is what lets vowel harmony pick the right suffix — and reading the whole book first keeps the choice identical on every appearance.

Does Sie become siz?

Yes, directly. Both languages mark formality in the pronoun, so it is read from the German rather than inferred, which removes the commonest source of drift.

How are German compounds handled?

As Turkish constructions — usually a possessive phrase — rather than as Turkish compounds, because the two languages build long words by opposite means. What matters over a book is that the same compound is rebuilt the same way each time.

How much is free?

About 4,500 words, roughly fifteen pages, five books a day per person.

Translate the whole book

The app runs the same engine across the entire book and can show the Turkish next to the German, with your position synced between devices.

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