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XnView MP vs nomacs: catalog facts
XnView MP	nomacs
Freemium Free for private and educational use. A commercial licence is required for business use.	Free Free and open source under the GPL 3.0.
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 RAW camera files and Photoshop PSD documents Synchronises pan and zoom between two windows or two machines
Closed source Commercial use requires a paid licence	Not an editor; adjustments are minimal The interface exposes a lot of panels at once
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 21, 2026

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