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MComix vs Houdoku: catalog facts
MComix	Houdoku
Free Free and open source under the GPL 2.0 licence.	Free Free and open source.
Windows, Linux	Windows, macOS, Linux
Reads comics straight from CBR, CBZ, CB7 and PDF Manga mode for right-to-left reading	Reads local manga files and extension sources Vertical and two-page reading modes
No macOS build listed GTK interface looks out of place on Windows	Desktop only, with no mobile app Online sources depend on extensions
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: MIT
No account needed	No account needed
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.