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Gwenview vs Avvie: catalog facts
Gwenview	Avvie
Free Free and open source, part of the KDE applications.	Free Free and open source under the GPL-3.0 licence.
Linux	Linux
Quick browsing through folders of images Basic edits such as crop, resize and red-eye reduction	Fast square crops for avatars Lossless JPEG cropping
Editing is limited to simple adjustments Best integrated with the KDE Plasma desktop	Linux only Does cropping and scaling only, no other editing
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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