Learn a language by reading real books
Read the original with its translation beside it, tap any word to see what it means in that sentence and listen to the page with every word highlighted. 2,000+ classics or your own EPUB.
No sign-up, no card.
Longtemps, je me suis couché de bonne heure.For a long time, I went to bed early.




Reading in another language shouldn't mean looking up every word, losing the thread and giving up in chapter three. With LexicAIze you get the translation next to the original, the meaning of each word in its sentence and a voice that reads the book to you while you follow the text.
How it works
Everything happens on one screen: pick a book, read it in two languages, listen to it and keep what you learn.







01
Pick a book
Upload your own EPUB or open one of the 2,000+ classics in the library.

02
Read it side by side
The original on one side and its translation on the other, page by page. The translation appears on its own as you turn the page.

03
Listen to it as an audiobook
Turn the page into audio with natural voices. The word being read is highlighted so you can follow the pronunciation.

04
Understand every word
Tap a word and the AI dictionary explains what it means in that sentence, not a list of definitions.

05
Build your vocabulary
Save words with their context in one tap and review them with mnemonics.

06
Read in 13 languages
English, French, German, Italian, Russian and more. The interface is available in 11 languages.
Read the books you already own
Upload any DRM-free EPUB and read it side by side, with the dictionary and audio. Your EPUB becomes an audiobook with every word highlighted.
- Any standard DRM-free EPUB
- Your books stay private
- Ready to read in seconds
Translate a whole EPUB and send it to your Kindle
The EPUB translator translates the full book with AI into 22 languages and gives you two files: the translated book and a bilingual edition, with every paragraph followed by its translation.
- Keeps chapters, table of contents, images and notes
- Bilingual edition for Kindle and e-ink readers
- First chapter free, no account needed
I
Longtemps, je me suis couché de bonne heure.
For a long time, I went to bed early.
2,000+ classics, ready to read
Austen, Flaubert, Kafka, Cervantes, Tolstoy. Public domain works in English, French, German, Spanish, Italian and Russian, with translation and audio from the first page.
Can you learn a language by reading books?
Yes, as long as you understand enough to keep reading. Reading a lot is one of the most effective ways to build vocabulary and fluency; the hard part has always been looking up every word. LexicAIze takes that out of the way.
Parallel text for any book
Any book becomes a bilingual book: the original and the translation side by side, so you follow the plot even when your level doesn't cover everything.
Read and listen at once
Hearing the text while you follow it links spelling and pronunciation. The audiobook highlights each word and keeps the pace.
Vocabulary in context
A word you meet inside a story sticks better than one on a list. The AI dictionary explains its exact sense in that sentence.
Reading languages
Read in any of these languages with the translation into yours. The interface comes in 11 languages.
- English
- Español
- Français
- Deutsch
- Italiano
- Português
- Русский
- Română
- Magyar
- Svenska
- Norsk
- Latina
- العربية
Start free. Go Premium to read whole books.
Try reading without signing up. With Premium you read every book in full and translate without limits.
Free preview
- No account or card needed
- Sample each book: 10% of its content or at least 6000 characters
- 6 translations a day
- Try the dictionary, audio and your own EPUB
A free account saves your progress, up to 15 words and up to 3 of your own EPUBs.
Premium
€9.99/month
or €99/year (save 2 months)
- Read every book in full
- Unlimited translations
- Unlimited vocabulary
- Priority support
No credit card required. Cancel anytime. See all plans
Frequently asked questions
Can you learn a language by reading books?
Yes. Reading a lot while understanding most of it is one of the most effective ways to build vocabulary. The key is not getting stuck: with the translation beside you, the meaning of each word in its sentence and audio, you keep reading instead of giving up.
Is there an app to read books in another language with the translation side by side?
Yes, LexicAIze. Open a book from the library or your own EPUB and read it with the translation next to the original, page by page, with a dictionary and audio.
What is a bilingual book?
A book with the original text and its translation together, in parallel or paragraph by paragraph. In LexicAIze any book reads this way, and the EPUB translator creates bilingual editions for your Kindle or e-reader.
Does reading and listening at the same time help?
It links how words are written with how they sound. LexicAIze turns any page into an audiobook with several voices and highlights the word being read so you can follow along. It works with your own EPUBs too.
Can I read my own books?
Yes. Upload any standard DRM-free EPUB; your books stay private. PDF, MOBI and protected Kindle, Apple Books or Kobo books are not supported.
How do I translate an EPUB book?
With the LexicAIze EPUB translator: upload the file, choose the language and download the translated book plus a bilingual edition. Chapters, table of contents and images are kept. The first chapter is free with no account.
Can I translate a Kindle book or a PDF?
No. The translator only accepts DRM-free EPUB files up to 25 MB. Books bought on Kindle, Apple Books or Kobo usually carry DRM and cannot be translated.
Is LexicAIze free?
You can try it without signing up or a card: you read part of each book and get a limited number of translations a day. Premium unlocks full books and unlimited translations for €9.99 a month or €99 a year.
What level do I need?
It works best from an intermediate level, once you understand simple sentences. If you are just starting, pick a classic you already know in your own language or a short book, and lean on the translation and the audio.
Which languages can I read in?
English, Spanish, French, German, Portuguese, Italian, Romanian, Russian, Hungarian, Swedish, Norwegian, Latin and Arabic. The interface comes in 11 languages.
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Your next book, in its original language
Start today with a classic or your own EPUB. Trying it is free.
No sign-up, no card.