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Codex vs Ubooquity: catalog facts
Codex	Ubooquity
Free Free to run on your own server.	Free Free to download and use.
Web, Self-hosted	Windows, macOS, Linux, Self-hosted
Reads comics in any web browser Keeps the library on your own server	Runs anywhere Java runs, including NAS devices Reads Calibre and ComicRack metadata
Needs a server to run Small project with a limited contributor base	Closed source Requires a Java runtime
Self-hosted	Downloadable app, Self-hosted
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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