Professional AI translation for independent authors, with editorial review and targeted review by a professional translator included.
Available languages
Example translation
65,000 words · Non-Fiction · EPUB
From translated manuscript to new readers
Real results from authors who used BookLingua to take their books into new markets.

Lily Bleu
French author · Published in France and Germany
★★★★★
“The translation is incredibly accurate, as if written by a qualified translator. My book is now live on Amazon France and Germany, and I didn’t need to make any changes to the manuscript. Great service!”
Maxine Savage
Author of Playing With Diamonds
★★★★★
“I launched the translated book in Italy and already have over 500 paid downloads and 20,000 Kindle read pages. Very happy to get a new audience in a new country!”
Four distinct stages: cultural scan → AI translation → AI editorial review → targeted professional translator review
Smart cultural detection
Before we translate, we scan your manuscript for country-specific terms, measurements, and cultural references that need your input.
AI-powered accuracy
Your entire book is translated while preserving your unique writing style, tone, and voice.
AI refinement pass
A premium AI editor reviews every sentence, matching your book's unique tone and style.
Independent human assessment
A professional translator reviews selected passages where clarity, consistency, tone and readability require particular care. This is not a full-manuscript human proofread.
Every AI editorial improvement is highlighted in yellow so you can review and approve it
El método científico requiere una observación cuidadosa y una mentalidad abierta hacia resultados inesperados. Los investigadores deben documentar cada paso del proceso.
"La verdad se encuentra en los datos," explicó la Dra. Martínez con convicción, "no en nuestras suposiciones previas."
💡 2 AI editorial improvements highlighted - Review and approve each change

Founder-led publishing experience
BookLingua was founded by Teddy Smith, an author, publishing marketer and host of The Publishing Performance Show. Through the romance book-discovery newsletter My Romance Reads, he has also built an audience of more than 18,000 romance readers and helped independent authors promote their books.
Teddy created BookLingua to give authors a faster, more affordable way to reach international readers—without losing the voice and personality that made their books worth translating in the first place.
Your translated files, AI editorial highlights and targeted professional translator review
Your translated EPUB will look great and read naturally - in the clean, standard ebook style readers are used to. Chapter structure and paragraphs are preserved.
If your original has custom styling (special fonts, drop caps, complex layouts), you'll want to review and apply those in your formatting tool before publishing. Many authors go straight from BookLingua to KDP upload.
We do our best to keep your original formatting - fonts, spacing, headings, bold and italic text - so your translated file looks as close to the original as possible.
Most customers can go straight from BookLingua to KDP or print setup, but it's worth a quick review to make sure you're fully happy before going to print.
Per language • Includes AI editorial review and targeted review by a professional translator
Professional translators review passages that require particular care. This is not a full-manuscript human proofread.
Find out what’s included →Up to 40k words
Short books & novellas
Auto-detected after upload
Up to 80k words
Standard books
Auto-detected after upload
Up to 150k words
Large books & textbooks
Auto-detected after upload
1 Language
Standard price
2 Languages
Save 7%
3 Languages
Save 10%
4 Languages
Save 12%
5 Languages
Save 15%
6+ Languages
Save 20%
Example: 80k novel → 6 languages = $715 $894 (20% bundle discount)
Enter your word count and choose your languages to see your full price, including any multi-language discount.
Everything you need to know before you get started
Yes - significantly. BookLingua uses a specialist AI translation pass followed by a separate AI editorial-review stage that refines idioms, adapts cultural context, and improves natural phrasing. Every AI editorial change is highlighted so you stay in control. We then select passages requiring particular care for targeted review by a professional translator.
EPUB, DOCX, and TXT. We recommend DOCX for best results - it gives the most accurate word count and preserves formatting perfectly. PDF is not supported as formatting is lost during conversion.
Most books complete within 2-6 hours depending on length. You'll receive an email with your download link as soon as it's ready.
Absolutely - visit our Examples page to see real side-by-side translations with editorial highlights.
View Examples →Email us within 7 days and we'll work with you to make it right.
Yes - if you have 10 or more books, we offer custom bulk pricing and a hands-off pipeline.
Learn more →Our pricing is based on word count: $99 for up to 40k words, $149 for up to 80k words, and $199 for up to 150k words — per language. If you translate into multiple languages, bundle discounts apply automatically, up to 20% off when you translate into 6 or more languages.
Compare translation costs →It can be — with the right process. BookLingua combines a cultural scan, AI translation, a separate AI editorial-review pass, consistency checks, and targeted review by a professional translator of passages that require particular care. This is not a full-manuscript human proofread.
See the complete novel test →We currently support Spanish (Spain), Spanish (Latin America), French, German, Italian, Portuguese (Portugal), Portuguese (Brazil), Polish, and Japanese.
Compare language markets →Yes. We use genre-specific prompts and a translation brief to preserve your tone, style, character voices, and narrative pacing. The AI editorial-review stage then refines idioms, dialogue, and cultural references before selected passages receive targeted review by a professional translator.
DOCX gives the best formatting preservation. EPUB comes back ebook-ready. TXT is supported for plain text. PDF is not supported because formatting is lost during conversion.
Selected passages are checked by a professional translator after BookLingua completes its translation and AI editorial-review stages. The translator focuses on passages where professional judgement is most valuable; this is not a line-by-line proofread of the complete manuscript.
BookLingua selects passages that are particularly difficult to translate or where small choices could significantly affect tone, meaning or readability. These might include dialogue, humour, idioms, culturally specific references or emotionally important scenes. A professional translator reviews these passages as an additional human quality check. The review focuses on the parts of the book where professional judgement is most valuable; it is not a full line-by-line proofread of the complete manuscript.
Read about editorial review →Not necessarily—and that is normal for translated literature. A translation may retain some of the character, rhythm or structure of its original language. BookLingua aims to create a clear, consistent and enjoyable translation while preserving the author’s voice and meaning, rather than rewriting the book to remove every sign that it has been translated.
Yes. We build a shared glossary and style guide so character names, invented terms, place names, and voice stay consistent across every book in the series.
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