Read any book.
In any language.

Polypage is an e-book reader for the books you already own — built for reading in a language that isn't your first. Translate paragraph by paragraph, look up words without leaving the page, listen along, and keep every highlight.

Free during beta. No ads, no tracking. Your books stay on your device.

Made for reading in another language

The tools language learners and readers of original editions actually need, in one reader.

Inline translation

Show a translation under each paragraph as you turn pages — or translate just the sentence you select. Works with Google Translate, Microsoft Translator or DeepL.

Dictionary cards

Look up a word in the dictionaries you trust, shown in a small card over the page. Add any web dictionary yourself, plus one-click Wikipedia lookup.

Japanese vertical text

Proper 縦書き with right-to-left page turns, two-page spreads and furigana — and text-to-speech that skips the ruby readings.

Listen along

Text-to-speech that highlights the sentence being read. Use your browser's voices, or your own Google Cloud or Azure key for natural voices.

Parallel reading

Open two books side by side — an original and its translation — and read them together.

Highlights & notes

Highlights, notes, sticky notes and a notebook per book. Export to Markdown, plain text or JSON whenever you like.

Your library, your files

Polypage is a reader, not a store. Bring the books you own.

Many formats

EPUB, PDF, MOBI / AZW3, FB2, TXT and comics (CBZ, CBR, CB7).

Import from anywhere

Drag in files or whole folders, or import from Google Drive, Dropbox, OneDrive or any WebDAV server.

Switch readers easily

Bring your highlights from Moon+ Reader, ReadEra or Readest.

Sync across devices Beta

Reading position, highlights and notes follow you — book files never leave your device. Free during beta; an Android app is planned.