BookLight - EPUB Translator

Now listen to your books. A natural, human-like AI voice reads aloud, highlighting each sentence as it goes — and keeps playing in the background.

Reading a book in another language? Stop breaking your flow to look words up. BookLight translates any word with a single tap — and remembers it for you.

BookLight is a EPUB & PDF & Txt reader built for language learners. Tap a word for an instant translation, and it's saved to your vocabulary automatically. Then spaced-repetition flashcards bring it back right before you'd forget — so every reading session actually builds your vocabulary. No app-switching. No flashcards to make by hand. Perfect for language learners, foreign-book readers, and anyone studying for TOEFL or IELTS.

Key Features:

Start Reading in Seconds — Free Classics Inside

• Download from various free classics (Project Gutenberg) right inside the app — no files to find, no setup.
• Or import your own DRM-free EPUB & PDF & TXT files from your device.
• Read offline anytime, with your reading progress saved and restored automatically.

Tap to Translate — Without Losing Context

• Tap any word for an instant translation: meaning by part of speech, phonetics, and an example sentence.
• Tap an inflected word and see its base form, too.
• Hear the pronunciation read aloud with one tap.
• Every word you tap is saved automatically — together with the sentence and the book it came from.
• Translate into 9 languages: Korean, Spanish, French, Japanese, Chinese, Russian, Hindi, Vietnamese, and Indonesian.

Remember Every Word — Spaced Repetition

• Your vocabulary list builds itself as you read — no manual entry.
• Review with spaced-repetition (SRS) flashcards that resurface each word right before you forget it.
• Tap any saved word to jump straight back to the exact spot in the book.
• Keep a daily streak and a smart reminder nudges you only when words are actually waiting.

Your Book Becomes an Audiobook — AI Read-Aloud

• A natural, human-like on-device AI voice reads your book aloud — choose from 10 voices.
• The sentence being read is highlighted, so you can follow along with your eyes and ears.
• Playback keeps going with the screen off or while you use other apps.
• Playback speed from 0.5x to 2x — faster on the commute, slower before sleep.
• Speech is synthesized on your device, so it works without an internet connection.

Read Your Way, Day or Night

• 7 fonts and 25 reading themes — from Sepia and Night to Rose Quartz, Sage, and Midnight.
• Adjust font size and line spacing until the page feels just right.
• Choose how you read — page turns or continuous scroll.
• Read hands-free with auto-scroll — 10 speed levels, and a single touch pauses instantly.
• Full dark mode plus automatic system-theme sync.
• Side-by-Side two-page display mode for comfortable reading on tablets.

Loved by readers in 10+ countries. Supports 9 translation languages and works with any DRM-free EPUB or TXT file.

Download BookLight today — and turn every reading session into a vocabulary lesson!

• Privacy Policy: https://pearlismylove.github.io/apps/book-light/privacy-policy.html
• Terms And Conditions: https://pearlismylove.github.io/apps/book-light/terms-and-conditions.html
• Support: https://pearlismylove.github.io/apps/book-light/support.html