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 Flatpak apps. The best XnView Classic 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 XnView Classic are ImageGlass, FastStone Image Viewer, qView and Gwenview.
FuturixImager is a compact and customizable image viewer. It is capable of opening more then 50 file types, including all most popular ones (GIF, JPEG, PNG, TIFF, JPEG2000, raw, DNG).
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.
imv(stb) is an extremely lightweight and fast image viewer/browser for the Windows platform. The current executable is about 70KB (without executable compression).
Imagot is an image viewer which aims to provide an open source alternative to Microsoft Photos or similar apps (and be multiplatform). It supports common image file types such as PNG, JPEG, SVG, etc.
SharpShot is a multi-platform picture editing software. It is meant for people who think Adobe Photoshop or GIMP are too cumbersome for everyday picture editing, while other simpler software like...
The Ristretto Image Viewer is an application that can be used to view, and scroll through images.
PhotoBatcher is a photo batch application that makes it easy to convert, resize, rotate, color control, apply effects, add watermark and rename photos in a single operation. It supports all popular formats.
Improve your photos - adjust size, zoom, change and refine colors, sharpen objects shapes. Apply pre-made effects. Make your photos look perfect.
LeafView is a lightweight, cross-platform image viewer with smooth zoom, folder browsing, and grid view, built with Electron and Leaflet.js.
Vallen JPegger is the international, handy, and full featured image viewer, which shouldn't be missing on any PC. Currently it supports 27 different languages including full Unicode language and file support. It is designed for large image libraries with thousands of files.
Russia
Italy
EU
Germany
India
Netherlands
United Kingdom
Japan