Shelfy: eBook & PDF Reader

Shelfy is a fast, private ebook reader and PDF reader for EPUB, PDF and comics — with offline AI, text-to-speech read-aloud, and on-device translation. No ads. No tracking. No clutter. Just reading.

📚 EPUB READER, PDF READER AND COMIC READER IN ONE
Open EPUB, PDF, CBZ/CBR comics, TXT, Markdown, FB2, MOBI and AZW3 in a single app. Import from your files, share a book straight into Shelfy, or convert PDFs to clean, reflowable EPUB right on your phone. One bookshelf for every format you own.

🎨 A READING EXPERIENCE YOU CONTROL
• 12+ themes — Light, Dark, Sepia, Night, Ocean, Paper and custom colors
• Fine-tune font, size, line spacing, margins and alignment
• Bionic reading, reading ruler and focus mode for faster, easier reading
• Blue-light warm mode and gesture brightness for comfortable night reading
• Smooth page animations, auto-scroll and full-screen immersive mode

🔊 TEXT TO SPEECH — LISTEN TO ANY BOOK
Built-in text-to-speech turns any ebook into an audiobook, so Shelfy reads aloud while you commute, cook or rest your eyes. Pick a voice, adjust speaking speed, follow along with word-by-word highlighting and set a sleep timer. Read aloud works across EPUB, PDF and plain text.

🤖 PRIVATE ON-DEVICE AI READING ASSISTANT
Smart help that runs entirely on your phone — your books never leave your device:
• Explain any word or passage in plain language
• Summarize or simplify tricky sections instantly
• Chat with characters and track who's who, spoiler-free
• Build vocabulary cards and reading-comprehension questions
No account, no cloud, no snooping.

🌍 OFFLINE TRANSLATION & DICTIONARY
Tap any word for instant definitions, synonyms and pronunciation. Translate words, sentences or whole passages on-device across 50+ languages — even with no internet. Read side-by-side interlinear text to learn a language as you read.

📈 GOALS, STREAKS & READING STATS
Stay motivated with daily reading goals, streaks, milestones and a full stats dashboard. See your reading time, pages, speed and a personal Year in Review. Turn your highlights into spaced-repetition flashcards so what you read actually sticks.

🗂️ ORGANIZE A HUGE LIBRARY EFFORTLESSLY
• Collections, tags and a Read-Later queue
• Smart Shelves that auto-sort by author, format, progress or status
• Highlights, bookmarks and notes with one-tap export
• Beautiful shareable quote cards

🔄 SYNC, BACKUP & DISCOVER MORE BOOKS
• Cloud sync and full local backup so you never lose progress
• Connect OPDS catalogs and Calibre-Web to download books
• Sync reading progress to Hardcover
• Built-in RSS reader to save articles for later
• Peer-to-peer book sharing — no central server required

🔒 PRIVATE BY DESIGN
Lock the app with a PIN, password or fingerprint. AI and translation run on-device by default, so your reading stays yours.

WHY READERS LOVE SHELFY
✔ One reader for EPUB, PDF and comics
✔ On-device AI — fully private
✔ Offline translation and dictionary
✔ Read-aloud text-to-speech
✔ Powerful library organization
✔ No ads, no subscriptions to read your own books

Shelfy is an offline ebook reader that works without an account: an EPUB reader, PDF reader, comic reader, text-to-speech audiobook player and AI study buddy in one app.