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Komga vs Calibre-Web: catalog facts
Komga	Calibre-Web
Free No pricing is listed; it is downloaded and run on your own server.	Free Free to use, with source code published on GitHub.
Web, Self-hosted	Web, Self-hosted
Handles CBZ, CBR, PDF and EPUB Integrated web reader	Uses an existing Calibre database directly Read books in the browser or download them
Requires running your own server License terms are not stated in the available research	Depends on a library created with Calibre Requires running a server
Self-hosted	Self-hosted
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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