Compare software

qView vs gThumb: catalog facts
qView	gThumb
Free Free and open source under the GPL.	Free Free and open source under the GPL version 2 or later.
Windows, macOS, Linux	Linux
Opens essentially instantly, which is what a double-clicked image needs No interface chrome; the window is the image	Native GNOME desktop application Works on local folders without a server
No editing, tagging or library management at all Metadata display is minimal	Linux only No cloud sync or phone backup
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 23, 2026

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