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Thorium Reader

Open-source EPUB and audiobook reader for desktops

E-books & Media Library ★ 2.9k stars Easy setup BSD-3-Clause

Thorium Reader is an open-source desktop ebook reader by EDRLab supporting EPUB, audiobooks, PDF, and DAISY formats. It emphasizes accessibility and standards compliance for offline reading.

Official siteSource code

Key features

  • EPUB and audiobook support
  • Strong accessibility features
  • DAISY format support
  • Cross-platform desktop app

Strengths

  • Released under the BSD-3-Clause license
  • Easy to set up — beginner-friendly
  • Active community (2.9k GitHub stars)
  • Written in TypeScript

Is Thorium Reader secure?

OSV.dev has no published security advisories for Thorium Reader's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

Thorium Reader replaces

Self-hosted Adobe Digital Editions alternativesSelf-hosted Apple Books alternatives

Health badge

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SelfHostIndex: 87 · excellent

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The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

Compare Thorium Reader

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