Rapid Photo Downloader - Download photos and videos from cameras, memory cards and portable storage devices.Pix - Image viewer and browser based on gthumb.Pix - Image gallery and image viewer that can be used to open images with other applications like an image editor, add tags to the files, add annotations to pictures, rotate and share them.Phototonic - Fast and functional image viewer and browser (Qt).PhotoPrism - Personal Photo Management powered by Go and Google TensorFlow.Pantheon Photos - Photo organizer for Pantheon.Memories - Image viewer and manager designed for elementary OS.
GNOME Photos - Access, organize, and share your photos on GNOME.Frogr - Small application for the GNOME desktop that allows users to manage their accounts in the Flickr image hosting website.
digiKam asserts it is more full featured than similar applications with a larger set of image manipulation features including RAW image import and manipulation.
jfbview - Framebuffer PDF and image viewer based on Imlib2.fim - Highly customizable and scriptable framebuffer image viewer based on fbi.fbv - Very simple graphic file viewer for the framebuffer console.fbi - Image viewer for the linux framebuffer console.See also Wikipedia:Comparison of image viewers. 1.5 Game and interactive application development.