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Fotocx vs XnView MP: catalog facts
Fotocx	XnView MP
Free Free and open source under the GPL version 3.	Freemium Free for private and educational use. A commercial licence is required for business use.
Linux	Windows, macOS, Linux
Editor and collection manager in one program No tracking or advertisements	Reads more than five hundred formats including RAW, HEIC and JPEG XL Batch conversion, renaming and adjustment across whole folders
Linux only Small, single-developer project	Closed source Commercial use requires a paid licence
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 21, 2026

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