Read books with translation online

Booklern is a free web reader for reading English books with a translation under every sentence: 722 classics in the library, or any EPUB you upload. You read the English, glance at the translation when a sentence loses you, listen to the text, and save words as you go.

How reading with translation works

Every book is shown in English. Under each sentence, or beside it if you prefer a side-by-side layout, sits its translation into Russian, Spanish, Brazilian Portuguese, Japanese, Chinese, Turkish or Arabic. The translation is aligned to the sentence, not to the page, so when you stop at a sentence you do not understand, the help is right there and you do not lose your place in the story.

Tap any word for its meaning and pronunciation. Hovering a word also lights up the matching phrase in the translation, which is the quickest way to see how an English phrase maps onto your language. One more tap saves the word to your vocabulary list.

Press play and a natural voice reads the chapter aloud while the current sentence is highlighted. Reading and listening at the same time is what turns a book into a listening lesson as well as a reading one.

Which books you can read

The library holds 722 public-domain classics, from short fairy tales to full novels, each with an estimated level. Browse by level, by genre or start with the shortest books, which are the ones learners actually finish.

Good first books: The Happy Prince and Other Tales, Alice's Adventures in Wonderland, The Wonderful Wizard of Oz. The first chapters of every book open without an account.

Read your own book with translation

Any English EPUB, or any text you paste, becomes a book with the same translation, audio and dictionary. Uploaded books stay private to your account. See how EPUB upload works.

Why a translation under the sentence beats a dictionary

A dictionary answers one word and costs you the sentence. A sentence translation confirms the meaning in one glance and lets you keep reading, and the words you meet often enough stick on their own. The guide Parallel text versus graded readers explains the method in detail, and How to read your first English book is where most people should start.

Books to start with

Questions

Is it free to read books with translation on Booklern?

Yes. The first chapters of every library book open without an account. A free account unlocks whole books, saves your place and your vocabulary, and lets you upload your own EPUB. Translation, audio and pronunciation checks have a fair-use daily allowance while Booklern is in early access.

Which languages is the translation in?

English books are translated into Russian, Spanish, Brazilian Portuguese, Japanese, Chinese, Turkish or Arabic. The interface is available in the same languages.

Is the translation human or machine?

Most books are translated sentence by sentence by an AI model the first time anyone reads a page, then cached, so the text you read has been checked for alignment. Several classics come with a published human translation that was aligned to the English in advance.

Can I read on my phone?

Yes. Booklern runs in any modern browser and can be added to the home screen. Your books, progress and vocabulary sync through your account.

Do I have to translate every sentence?

No. The translation can be shown under the text, beside it in a second column, or switched off so you read English only and open the dictionary on the words you need. From level B1 upwards we recommend reading with it off and glancing at it only for the sentences that lose you.

Try it on a real book

Open any classic in the library. The first chapters are free without an account, with the translation under every sentence, audio and a dictionary. Or upload your own EPUB.

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More about reading with Booklern