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Houdoku vs MangaReader: catalog facts
Houdoku	MangaReader
Free Free and open source.	Free Free and open source under the GPL-3.0 or later licence.
Windows, macOS, Linux	Linux
Reads local manga files and extension sources Vertical and two-page reading modes	Opens image folders and many comic archive formats Folder tree for switching between series
Desktop only, with no mobile app Online sources depend on extensions	In maintenance mode, bug fixes only Reads local files only, no online sources
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0-or-later
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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