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nomacs vs Eye of GNOME: catalog facts
nomacs	Eye of GNOME
Free Free and open source under the GPL 3.0.	Free Free and open source under GPL-2.0-or-later.
Windows, macOS, Linux	Linux
Opens RAW camera files and Photoshop PSD documents Synchronises pan and zoom between two windows or two machines	Plugin support for extra features Lightweight and familiar
Not an editor; adjustments are minimal The interface exposes a lot of panels at once	Linux only Viewing focused, with little editing
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-2.0-or-later
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 24, 2026

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