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imv vs nsxiv: catalog facts
imv	nsxiv
Free Free and open source.	Free Free open-source software.
Linux, Command line	Linux
Native Wayland and X11 support Reads many formats including RAW, SVG and PSD	Very small and fast Keyboard-driven with a thumbnail browsing mode
No editing features Keyboard-driven interface with no menus	X11 only Configured by editing source and recompiling
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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