How AI Book Translation Works

Upload your EPUB or FB2 file, pick a target language and (optionally) a CEFR reading level, pay for the translation, and download the translated book when it is ready. The whole flow usually takes under an hour.

We accept EPUB, FB2 and FB2.ZIP files up to 50 MB. The translated book is returned in the same format you uploaded — upload EPUB, get EPUB back; upload FB2, get FB2 back. EPUB works natively on Apple Books, Kobo and PocketBook, and on Kindle via "Send to Kindle".

Translation starts from $3.99 per book. You see the exact price before you pay — no surprises. Pay once per book or subscribe for unlimited monthly translations.

CEFR levels (A1–C2) let us simplify the language to match your reading ability. Perfect for language learners who want to read in their target language without a dictionary.

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. We keep the original structure intact — chapters, table of contents, footnotes, images, and basic styling all carry through to the translated book.

Most books are ready in under 60 minutes. Short stories take minutes; a full novel usually 20–40 minutes. You'll get an email when it's ready. We'll email you a download link as soon as your book is ready. Time depends on book length and current load.

Yes. Files are transferred over HTTPS and stored on our servers. We never share your books or use them to train AI models. Your download link expires 30 days after the translation completes.

A literary translation keeps the original tone, vocabulary and style — best for native or fluent readers. A CEFR-simplified translation rewrites the text at a lower reading level (A1–C2) so language learners can read without a dictionary.

Yes. EPUB and FB2 are open formats — you can open them in tools like Calibre, Sigil or any text editor and tweak wording, formatting or metadata as you like.

If there's a quality issue with the translation, email support@aiebooktranslator.com within 7 days of delivery. Approved refunds are processed within 5–10 business days. We stand behind our service and will work with you to resolve any issues. See our Terms of Service for full refund policy details.

Translating a book for personal use is legal in most jurisdictions. We do not distribute translated files publicly. Check your local copyright laws if unsure.