XnView Classic is described as 'Efficient image viewer, browser and converter for Windows with built-in support for over 500 image formats' and is a very popular Image Viewer in the photos & graphics category. There are more than 100 alternatives to XnView Classic for a variety of platforms, including Windows, Mac, Linux, Flathub and iPad apps. The best XnView Classic alternative is XnView MP. It's not free, so if you're looking for a free alternative, you could try XnView MP or IrfanView. Other great apps like XnView Classic are nomacs, FastStone Image Viewer, qView and Gwenview.
Image viewer offering support for HDR, RAW, extensive formats, webtoon mode for comics, fast navigation, batch conversion, slideshow, detail zoom, drag-and-drop, efficient browsing, keyboard shortcuts, multi-monitor support, and portable usage options.
South Korea
Eye of GNOME is the official image viewer for the GNOME Desktop environment. With it, you can view single image files, as well as large image collections. The Eye of GNOME supports a variety of image file formats.
United States
Plug in your memory cards and start picking winners and deleting rejects almost instantaneously. Move from image to image without that annoying rendering delay. Add dynamic caption, copyright, and keyword information individually or in batches.
Picturama is a free and open-source image organizer for the desktop built on Electron and powered by web technology.
feh is an X11 image viewer aimed mostly at console users. Unlike most other viewers, it does not have a fancy GUI, but simply displays images. It is controlled via commandline arguments and configurable key/mouse actions.
Germany
EU
Geeqie is a free open software image viewer and organiser program for Linux, FreeBSD and other Unix-like operating systems.
CzechiaEU
Simplistic Image Viewer with focus on speed of rendering and switching between images. A good complement when no editing capabilities are nessesary.
SwedenEU
Helps manage extensive photo collections with import tools, duplicate detection, smart albums, keyword tagging, timeline and calendar views, background customization, instant search, and fullscreen modes for an efficient and customizable photo organization experience.
Ukraine
Enhanced Android Gallery App to manage local photos: geotagging with map, tags (keywords), find, sort, view, copy, delete, set gps exif data, send, ... .
Image viewing app for Windows 10 offering a minimalist fullscreen photo viewing experience, with customization and export features.
GraphicConvertor is an image viewer & convertor that converts images between many formats and retouches, edits, and transforms them using tools, effects and filters. It supports a batch and slideshow mode, image browser, and access to metadata.
GermanyEU
µPhotos is a fast OpenGL-based cross platform immersive photo viewer and organizer. Here is a list of features, that make µPhotos special:
