Folio is a modern, offline-first ebook reader and personal library manager designed to give you complete ownership of your reading experience.

Unify your digital reading life in one beautiful, private interface. Folio supports all your favorite formats including EPUB, PDF, Comics (CBZ/CBR), and Audiobooks (MP3/M4B) without requiring an account or internet connection.

✨ Key Features

📚 Universal Reader

Read Anything: Seamless support for EPUB, PDF, and TXT files.

Comics & Manga: Dedicated viewer for CBZ and CBR archives.

Audiobooks: Full-featured audio player with speed control, sleep timer, and bookmarking.

🔍 Discovery & Archive Tool

Integrated Search: Find free public domain books seamlessly from Open Library, Project Gutenberg, and Standard Ebooks.

Amazon Archive: Browse the comprehensive Amazon catalog to discover new releases and classics. Use this feature to add titles to your Folio library as reference entries—perfect for tracking physical books you own, building a wishlist, or managing your “To Read” backlog.

📝 Powerful Note-Taking

Annotate: Highlight text in multiple colors, add sticky notes, and scribble directly on pages.

Voice Memos: Record audio thoughts attached to specific book sections.

Rich Text: Use the built-in editor for comprehensive study notes.

🎨 Completely Customizable

Themes: Day, Night, Sepia, OLED, and custom color creators.

Typography: Support for custom fonts, including OpenDyslexic, line height, and margins.

Layout: Choose between paginated (book-style) or vertical scrolling modes.

🔒 Private & Offline

Local Storage: Your library lives on your device.

No Tracking: We don’t sell your data or require a login.