


gThumb is described as 'Image viewer and browser for the GNOME Desktop. It also includes an importer tool for transferring photos from cameras' and is a very popular Image Viewer in the photos & graphics category. There are more than 100 alternatives to gThumb for a variety of platforms, including Windows, Linux, Mac, Flathub and Flatpak apps. The best gThumb alternative is IrfanView. It's not free, so if you're looking for a free alternative, you could try IrfanView or XnView MP. Other great apps like gThumb are ImageGlass, nomacs, Sly and FastStone Image Viewer.







Designed to be a comprehensive image viewer, Tacent View supports TGA, PNG, APNG, EXR, DDS, GIF, HDR, JPG, TIFF, ICO, WebP, and BMP files. Uses Dear ImGui, OpenGL, and Tacent. Useful for game devs as it displays information like the presence of an alpha channel and querying...




µPhotos is a fast OpenGL-based cross platform immersive photo viewer and organizer. Here is a list of features, that make µPhotos special:

I realized I was spending a lot of time waiting for JPEGs to open, and the default viewer on my system wasnt really hot with large files. I take a lot of digital camera pictures, and viewing a few megapixels in a web browser is ugly.
Imaginario is an open-source, cross-platform photo manager for the desktop with a version optimized for mobile devices running Ubuntu. It features built-in filterable search, great tagging with hierarchical categories and automatic face-tagging and more.




Hardware accelerated image viewer and image sequence player. It supports a large variety of formats, including many camera RAW images.


Electro is a blazingly fast image viewer built with Rust, featuring an integrated terminal for enhanced productivity.

ViewPic is a lightning fast and image viewer for Mac OS X, you can quickly browse through all images in a folder.




Improve your photos - adjust size, zoom, change and refine colors, sharpen objects shapes. Apply pre-made effects. Make your photos look perfect.




Viso is a beautiful minimal image viewer for MacOS. Features a non intrusive UI that allows you to get the most viewing experience out of your images.




GLiv is an OpenGL image viewer. Image loading is done via Gdk-pixbuf bundled with GTK+-2.6, rendering with OpenGL, and the graphical user interface uses GTK+ with GtkGLExt.


