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Calibre-Web Automated vs Calibre: catalog facts
Calibre-Web Automated	Calibre
Free Free to download and run on your own server.	Free Free and open source, funded by donations.
Web, Self-hosted	Windows, macOS, Linux
Automatic ingest, conversion and metadata handling Docker and Kubernetes deployment files	Converts between all the major ebook formats, including for Kindle Fetches metadata and covers from the internet automatically
Requires running your own server Tied to the Calibre library format	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
Self-hosted	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.