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XnView MP vs QuickViewer: catalog facts
XnView MP	QuickViewer
Freemium Free for private and educational use. A commercial licence is required for business use.	Free Free software under GPLv3.
Windows, macOS, Linux	Windows, macOS, Linux
Reads more than five hundred formats including RAW, HEIC and JPEG XL Batch conversion, renaming and adjustment across whole folders	Opens image archives directly Supports two-page comic viewing
Closed source Commercial use requires a paid licence	Linux users need to build QuickViewer from source.
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-only
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 8, 2026

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