Compare software

Ristretto vs gThumb: catalog facts
Ristretto	gThumb
Free Free and open source under the GPL v2.0 or later.	Free Free and open source under the GPL version 2 or later.
Linux	Linux
Lightweight and quick to open images Integrates with the Xfce desktop	Native GNOME desktop application Works on local folders without a server
Linux only Viewing only, with no editing or library features	Linux only No cloud sync or phone backup
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License: GPL-2.0-or-later
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.