How AI Book Translation Works

Upload your e-book (EPUB or FB2), select your target language, and our AI translates the entire book while preserving formatting. The AI uses advanced language models (standard and pro thinking models) that do their best to understand context, idioms, and nuance.

We currently support EPUB and FB2 formats—the most popular e-book formats for fiction and non-fiction. When you upload a book, we preserve its format: upload an EPUB, get an EPUB back. PDF is not supported because it's designed for fixed layouts, not flowing text.

Translation starts at $4, with longer books costing more. You'll see the exact cost before you pay—no surprises. We use a pay-as-you-go model with no subscriptions required.

CEFR is the Common European Framework of Reference for Languages. A1-A2 are beginner levels with simple vocabulary. B1-B2 are intermediate with more complex sentences. C1-C2 are advanced, preserving the original literary style. Choose the level that matches your language proficiency.

AI translation generally produces grammatically correct text and does its best to capture context, idioms, and tone. However, it is not comparable to professional human translation. Occasional phrasing may sound unnatural, and subtle literary nuances can be lost. Think of it as a good working translation rather than a polished literary edition.

Yes! Your book's original structure is preserved—chapters, quotes, images, and document layout remain intact. You get a beautiful result you can use right away on any e-reader device. However, this works best with natively created EPUB/FB2 files. Books converted from PDF or other formats may have broken internal formatting that can cause issues during translation.

Most books are translated within minutes to an hour, depending on length. You'll receive an email notification when your translation is ready for download. Short stories take just minutes; full novels may take longer.

Yes. Your uploaded books and translations are private—only you can access them. We do not share your content or use your books to train AI models. Files are automatically deleted after 30 days.

Literary translation preserves the original style, vocabulary, and complexity. Simplified versions (A1-B2) adapt the text for language learners—using simpler vocabulary, shorter sentences, and clearer grammar while keeping the same story and characters.

Yes! The files you download are standard EPUB or FB2 format. You can edit them with tools like Calibre or Sigil. If you find errors or want to personalize something, you're free to make changes—the downloaded file is yours.

If you're not satisfied with the translation quality, contact us within 7 days of receiving your book. We stand behind our service and will work with you to resolve any issues. See our Terms of Service for full refund policy details.

We process books through premium AI models (standard and pro thinking models) that may decline certain content types. If a translation cannot be completed due to content restrictions, you will not be charged. We recommend reviewing your book's content before uploading.