gThumb is an image viewer and organizer with a couple of limited options to also edit images. Developed by The GNOME Project
License: Open Source
gThumb is a lightweight and fast image viewer that excels in basic editing and video file support, making it suitable for quick image viewing and handling. In contrast, Shotwell offers robust photo organization features, tagging support, and integration with online services, making it ideal for users who need comprehensive photo management.