Your books, your data, every device.

A free, open-source e-book reader and library manager.
No subscriptions. No tracking. No lock-in.

Available for Android, iOS, Windows, macOS, Linux, and Web. E-ink friendly mode included.

Open source (AGPL-3.0)
6 platforms
7 e-book formats
Privacy by default
Works offline

Built for readers who value freedom

Runs everywhere you read

One app for your phone, tablet, laptop, and e-reader. Your library and reading position follow you across devices.

No internet required

Everything works offline. Import, read, annotate, and track your progress without going online. Sync when you choose to.

Your data stays yours

No analytics. No tracking. No account required. Store books locally, on your own server, or on any cloud provider you trust.

Free, forever

No subscriptions, no premium tiers, no ads. Papyrus is open-source software that belongs to its community.

What you can do with Papyrus

Organize your way

  • Shelves and collections for flexible grouping
  • Color-coded tags for instant visual filtering
  • Series tracking with reading order
  • Track physical books alongside digital ones
  • Advanced search across your entire library

Read comfortably anywhere

  • Integrated reader for EPUB, PDF, MOBI, AZW3, TXT, CBR, CBZ
  • Customizable typography: font, size, spacing, margins
  • Light, dark, sepia, and custom themes
  • Reading profiles for different devices and contexts
  • Optimized for e-ink displays

Capture every thought

  • Multi-color highlights with inline notes
  • Standalone book notes
  • Bookmarks for quick navigation
  • Search across all annotations
  • Export to text, PDF, or Markdown

Track your reading life

  • Automatic reading time and page tracking
  • Daily, weekly, monthly, and yearly goals
  • Streaks and achievements
  • Visual charts: trends, genre distribution, completion rates

One app. Every platform.

Your library syncs seamlessly across all of them. Includes a dedicated e-ink friendly mode for comfortable reading on e-paper displays.

Store your books where you want

Local storage by default. Sync through your own server, or connect any cloud provider.

Local
Self-hosted
Google Drive
WebDAV
S3-compatible
Learn more about self-hosting

Open source. Transparent. Community-driven.

Full source code available on GitHub, licensed under AGPL-3.0

Built with Flutter and FastAPI — pull requests always welcome

Zero telemetry, zero tracking. Audit every line of code yourself.

Actively maintained with a public roadmap and regular releases