kepubify vs Calibre: catalog facts
 kepubify |  Calibre |
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Free Free and open source. |
Free Free and open source, funded by donations. |
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Web, Command line |
Windows, macOS, Linux |
- Converts most books in under a second
- Tolerates malformed HTML in source EPUBs
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- Converts between all the major ebook formats, including for Kindle
- Fetches metadata and covers from the internet automatically
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- Only useful for Kobo e-reader owners
- Command-line oriented, with no desktop GUI
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- The interface is dense and has accumulated two decades of features
- It will not remove DRM; that requires third-party plug-ins with their own legal questions
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Downloadable app, Web application |
Downloadable app |
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Open source |
Open source |
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License: MIT |
License: GPL-3.0 |
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No account needed |
No account needed |
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Works offline |
Works offline |
Checked September 23, 2026 | Checked September 20, 2026 |
Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.
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