Papyrus

A privacy-first, offline-first PDF & EPUB reader. Your books stay on your device.

Papyrus is a clean, beautiful, and privacy-first PDF and EPUB reader built directly into your browser. Unlike cloud-based readers, Papyrus never uploads your books, personal documents, or reading habits to remote servers. Everything—from book parsing and thumbnail generation to reading progress and bookmarks—is executed and stored 100% locally on your machine using client-side IndexedDB storage. ✨ KEY FEATURES: 📖 Seamless Format Support - Read both PDF and EPUB files effortlessly with automatic format detection. - Instant resume: Pick up right where you left off every time you open a book. - Fast multi-format library with cover previews, file badges, and search filtering. 🎨 4 Beautiful Reading Themes - Light Mode: Crisp, high-contrast daytime reading. - Sepia Mode: Warm, gentle tones for relaxed afternoon reading. - Kindle Mode: Engineered paper-warm palette to eliminate blue-light fatigue. - Dark Mode: Deep, high-contrast dark palette for nighttime reading. - Press 'D' or 'N' to cycle themes instantly. 🔍 In-Reader Search & Match Stepping - Instant full-text search across documents. - Step through occurrences smoothly with next/previous buttons or Enter / Shift+Enter. 🔖 Smart Bookmarks & Interactive Table of Contents - Add bookmarks with custom labels to any page (shortcut: 'B'). - Table of Contents sidebar with one-click chapter navigation and visual bookmark pins. ⌨️ Power-User Keyboard Navigation - Arrow keys / Space / PageUp / PageDown for smooth page turning. - 'G' to jump directly to any page or chapter number. - 'W' to fit to width; '+' and '-' to zoom; '0' to reset zoom. - 'F' for distraction-free fullscreen reading. - Press '?' anytime to open the keyboard shortcuts cheat sheet. 📋 Native Text Selection & Copy - Select and copy quotes and notes directly from your documents. 💾 Safe Offline Storage & Portability - 100% Offline-enabled: Read your library anytime, anywhere without an internet connection. - One-click backup and restore: Export your library data and progress to a lightweight JSON file. 🔒 100% PRIVATE & OPEN SOURCE: - Zero cloud uploads. - Zero analytics, trackers, or telemetry beacons. - Zero data collection. Your documents belong exclusively to you.