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Upload and translate from the browser
The workflow starts online: upload your EPUB, choose the language pair, and review the preview. This avoids copying long chapters into separate translation tools.
Side by Side EPUB Translator
Translate EPUB books online with side-by-side reading support.
BilingualText turns EPUB files into parallel text editions so readers can keep the source language and translation visually connected across chapters.
Online EPUB upload and translation
Side-by-side source and target reading support
Made for long-form books, not text snippets
No subscription required for credit packs
Reader goal
Decide whether BilingualText fits the book, language pair, and reading workflow you have in mind.
Audience
Made for readers who learn through real books.
For language learners and bilingual readers who want an online side-by-side EPUB translator instead of a plain machine-translated text export.
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Keep translation close to the original
Side-by-side reading is valuable because the original sentence, paragraph, or passage remains nearby. BilingualText uses a parallel text structure so the translated support is available without hiding the source language.
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Use the result as a study EPUB
Once the translation is complete, the downloadable EPUB can become part of your study library. It is useful for repeated reading, review, and comparing translation choices across chapters.
Best for
Built around actual reading workflows.
Comparing paragraphs while reading
Studying grammar and vocabulary in context
Creating bilingual editions for personal use
Common questions
What readers usually ask before translating a book file.
Can I preview the EPUB before using credits?
Yes. Upload an EPUB, choose the source and target language, then review a free sample and credit estimate before you decide whether to translate the full book.
Does BilingualText keep the EPUB layout readable?
BilingualText works best with reflowable EPUBs. The output is a parallel text EPUB, so the original text and translation stay close without turning the book into a copy-paste document.
Is BilingualText a side-by-side EPUB translator?
Yes. BilingualText creates parallel text EPUB output where the original and translated text stay close for comparison while reading.
Can I use it online without installing desktop software?
Yes. The upload, preview, estimate, and translation workflow runs in the browser, and the finished result is downloaded as an EPUB.
Preview the first pages before you spend credits.
Upload an EPUB or text-based PDF, choose source and target languages, see an estimate, then decide whether to unlock the full bilingual reading copy.
Start with your file