Compare software

Codex vs Atsumeru: catalog facts
Codex	Atsumeru
Free Free to run on your own server.	Free Free and open source under the MIT licence.
Web, Self-hosted	Windows, Linux, Android, Web, Self-hosted
Reads comics in any web browser Keeps the library on your own server	Reads CBZ, CBR, CB7, PDF and DjVu files Two-way reading history sync between web and apps
Needs a server to run Small project with a limited contributor base	ePub and FB2 support is limited Smaller project with a modest community
Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License not stated	License: MIT
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 24, 2026	Official website Full listing and sources Checked October 2, 2026

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