EpubReader

A simple EPUB reader for Android with text-to-speech, library management, and customizable themes.

Features

• EPUB parsing with OPF spine-order chapter detection
• Page-fitting text blocks — text fills the screen, no scrolling needed
• Text-to-speech — local TTS engine with auto-fallback to online Google Translate TTS
• Swipe navigation — swipe left/right to turn pages
• Library — tracks up to 50 books with auto-saved reading positions
• Bookmarks — save and jump to bookmarks
• Themes — Day, Night, and OLED black
• Adjustable text size (10sp–28sp) and TTS speed (0.5×–2×)
• Voice selection for local TTS engine
• Collapsible menu with Bookmark, Bookmarks, Theme, and Settings
• Hide bottom bars setting for distraction-free reading
• Progress indicator — chapter, block, and overall percentage

Install

Download EpubReader.apk from Releases or build from source.

Enable "Install from unknown sources" in your device settings if needed.

Build from source

Requires Android SDK (API 34) and JDK 17.

./gradlew :app:assembleDebug

The APK will be at app/build/outputs/apk/debug/app-debug.apk.

Usage

1. Tap Open EPUB to select a .epub file
2. Swipe left/right or use Prev/Next buttons to navigate pages
3. Tap Play to start text-to-speech
4. Tap the ☰ menu button to access bookmarks, theme, and settings
5. In Settings, toggle "Hide bottom bars" for distraction-free reading

Permissions

• Internet — for online TTS (Google Translate voice)
• Storage — to read EPUB files via Android document picker

License

MIT

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For an overview of all my other projects, see https://adegard.github.io/blog/