Calibre
Calibre is a free, open-source education and reference app for Windows, macOS and Linux. The official source code repository for the calibre ebook manager. It has 26,264 GitHub stars and is released under the GPL-3.0 license, and people use it instead of Kindle and Adobe Digital Editions.
github.com/kovidgoyal/calibre (opens in a new tab)
Data as of from the GitHub API; description from the project's repository. Report an error
About Calibre
calibre is an e-book manager. It can view, convert, edit and catalog e-books in all of the major e-book formats. It can also talk to e-book reader devices. It can go out to the internet and fetch metadata for your books. It can download newspapers and convert them into e-books for convenient reading. It is cross platform, running on Linux, Windows and macOS.
Replaces
Commercial software people commonly use Calibre instead of.
- Kindle
- Adobe Digital Editions
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Is Calibre free and open source?
Yes. Calibre's source code is public on GitHub under the GPL-3.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install Calibre?
Download the installer for Windows, macOS and Linux from its GitHub Releases page (latest: v9.17.0) or the project website.
Can Calibre replace Kindle?
Calibre is commonly used as a free alternative to Kindle and Adobe Digital Editions. Features differ, so check that it opens the file formats and covers the workflows you rely on before switching.