Skip to content
appsgit

Thorium Reader

Thorium Reader is a free, open-source education and reference app for Windows, macOS and Linux. A cross platform desktop reading app, based on the Readium Desktop toolkit. It has 2,918 GitHub stars and is released under the BSD-3-Clause license. Its source code is on GitHub at edrlab/thorium-reader.

github.com/edrlab/thorium-reader (opens in a new tab)

Data as of from the GitHub API; description from the project's repository. Report an error

Download from GitHub (opens in a new tab)View on GitHub (opens in a new tab)

About Thorium Reader

Thorium Reader is an easy to use EPUB reading application for Windows 10/10S, MacOS and Linux. After importing e-books from a directory or OPDS feed, you'll be able to read on any screen size, customize layout settings, navigate via the table of contents or page list, set bookmarks... A great care is taken to ensure the accessibility of the application for visual impaired people using NVDA, JAWS or Narrator.

Similar apps

More open-source education apps

All education, flashcards & reference

FAQ

Thorium Reader FAQ

Still curious? Email info@appsgit.com.

Is Thorium Reader free and open source?

Yes. Thorium Reader's source code is public on GitHub under the BSD-3-Clause license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.

How do I install Thorium Reader?

Download the installer for Windows, macOS and Linux from its GitHub Releases page (latest: v3.5.1) or the project website.

Is Thorium Reader still maintained?

The repository's most recent commit was on Oct 28, 2026. appsgit only lists apps whose repository had a commit in the last six months.