Read real English books with instant translation into your language

Booklern is a simple bilingual reader that shows English with translation in your language, reads passages aloud, explains words instantly, and lets you upload any EPUB to turn it into your own bilingual book.

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Read English books with help in Russian, Spanish, Brazilian Portuguese, Japanese or Chinese.

Live demoAlice’s adventures in Wonderland
However, she soon made out that she was in the pool of tears which she had wept when she was nine feet high.
“I wish I hadn’t cried so much!” said Alice, as she swam about, trying to find her way out. “I shall be punished for it now, I suppose, by being drowned in my own tears! That WILL be a queer thing, to be sure! However, everything is queer to-day.”
Однако, Алиса вскоре же убедилась, что попала не в море, а в пруд из слёз, которые сама же наплакала, когда была в сажень слишком ростом.
— Ах, если бы я не плакала так много! — сказала Алиса, плавая взад и вперёд. — Я буду теперь наказана за это тем, что утону в собственных слезах. Вот будет странная штука! Впрочем, сегодня всё странно…
Hover over, or tap any English word to see its translation. Listen to the passage, then see the translation beside the English text when you need it.

Start with a classic

Hand-picked books, already aligned sentence by sentence. Open one and read, no account needed.

Алиса в стране чудесЛьюис КэрроллB127k wordsОдиссеяHomerC1127k words1984George OrwellB2103k wordsАнна КаренинаLeo TolstoyB2357k wordsСнежная королеваГанс Христиан АндерсенB212k words
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Bring your own book

Upload an EPUB or paste English text. Booklern turns it into your own bilingual book with translation, audio, and instant word help in the same minimalist reader.

Your uploaded books stay private in your account.
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Listen to every sentence

Natural voices read each passage aloud while the words highlight in time with the audio, so you connect spelling to sound instead of guessing at it.

  • Word-by-word highlight that follows the voice
  • Play any paragraph, replay as often as you like
  • Ctrl+hover a phrase to hear just that phrase

Practice pronunciation with any passage

Listen first, then read the same passage aloud. Booklern highlights which words were clear, close, or need another try.

  • Per-word feedback, not a single vague score
  • Compare against the voice you just heard
  • Works on any passage in any book

Save words and meet them again in context

Save a word with one tap while you read. Once you've collected a few, Booklern writes a short story that weaves them in, so they come back in context, not on a flashcard.

  • One-tap save straight from the word popup
  • Practice stories built from your own vocabulary
  • Your words stay highlighted wherever they appear

Read with translation

English and translation are aligned sentence by sentence, so you can understand the meaning without leaving the story.

Listen to every sentence

Natural voices read each passage aloud while the words highlight in time with the audio.

Tap any word

Get instant translation and dictionary help for unfamiliar words and phrases.

Upload your own EPUBs

Bring your own books or paste plain English text and turn them into bilingual reading material.

Save vocabulary

Collect useful words while reading and meet them again in short practice stories built from your own vocabulary.

Practice pronunciation

Listen first, then read the same passage aloud. Booklern highlights which words were clear, close, or need another try.

How it works

  1. 1 Open one of the included classics, no account needed
  2. 2 Read with translation, audio, and instant word help
  3. 3 Create a free account to finish the book
  4. 4 Save words and practice them in generated stories

Booklern is free during early access. Reading included classics is unlimited. AI translation, audio, uploaded books, and pronunciation features may have fair-use daily limits.

Start reading English books today

Open a classic for free, or upload your own EPUB and turn it into a bilingual reader.

Start reading freeUpload your own book