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Ubooquity vs Codex: catalog facts
Ubooquity	Codex
Free Free to download and use.	Free Free to run on your own server.
Windows, macOS, Linux, Self-hosted	Web, Self-hosted
Runs anywhere Java runs, including NAS devices Reads Calibre and ComicRack metadata	Reads comics in any web browser Keeps the library on your own server
Closed source Requires a Java runtime	Needs a server to run Small project with a limited contributor base
Downloadable app, Self-hosted	Self-hosted
Closed source	Open 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 24, 2026

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