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Ristretto vs Loupe: catalog facts
Ristretto	Loupe
Free Free and open source under the GPL v2.0 or later.	Free Free, developed as part of the GNOME project and supported by donations.
Linux	Linux
Lightweight and quick to open images Integrates with the Xfce desktop	Fits naturally into the GNOME desktop Shows image metadata alongside the picture
Linux only Viewing only, with no editing or library features	Linux only Editing is limited to basic transforms
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	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 23, 2026

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