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Stump vs Calibre-Web: catalog facts
Stump	Calibre-Web
Free Free and open source.	Free Free to use, with source code published on GitHub.
Web, Self-hosted	Web, Self-hosted
Handles comics, manga and ebooks OPDS support for third-party reader apps	Uses an existing Calibre database directly Read books in the browser or download them
Requires running your own server	Depends on a library created with Calibre Requires running a server
Self-hosted	Self-hosted
Open source	Closed source
License not stated	License not stated
No account 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.