IrfanView is described as 'Fast and powerful image viewer, editor, and converter for beginners and pros. Supports various formats, batch processing, and many extensions' and is a leading Image Viewer in the photos & graphics category. There are more than 100 alternatives to IrfanView for a variety of platforms, including Windows, Linux, Mac, Flathub and Web-based apps. The best IrfanView alternative is XnView MP. It's not free, so if you're looking for a free alternative, you could try XnView MP or nomacs. Other great apps like IrfanView are ImageGlass, XnView Classic, qView and JPEGView.
gThumb is an image viewer and browser for the GNOME Desktop. It also includes an importer tool for transferring photos from cameras.
gThumb does not have some of the more important and convenient features found in IrfanView.
Some users think gThumb is a great IrfanView alternative, some don't.
Advanced photo software offering RAW processing, layer support, retouching, and video editing. Includes cataloging, presets, automatic import, and robust sharing. Supports RAW and JPG editing with post-trial photo products creation while maintaining non-subscription features.
Photos is a digital photograph manipulation application developed by Apple, intended to be less complex than its predecessor iPhoto .
Apple Photos is the most popular Web-based alternative to IrfanView.
Imagine is an Image & Animation Viewer for Windows with screen capture function.
Fast, compact, responsive, so many features like batch conversion, screen capture, image compression, etc., definitely this is a amazing tool.
In addition to functioning as an excellent alternative to IrfanView's image viewing capabilities (I love IrfanView personally, but enjoy a little variety sometimes, too), Imagine also includes an animation viewer and even provides screenshot capabilities, acting as a "GreenShot/IrfanView".
Diffractor unifies managing photo, video and audio files. If you centralize media on that trusty old PC; let Diffractor do the heavy lifting.
Waterfall-style image viewer for macOS, offering a smooth and immersive browsing experience.
Pixyway is a fresh new picture viewer for Windows. It has been designed to be an 'everyday' picture viewer tool like Google Picasa viewer used to be! By the way, if you liked Picasa viewer, you will notice some references to it.
QuickViewer is a graphic image viewer for comfortable browsing of many images. This software performs reading of image data in advance. And drawing the imported image data on the screen with OpenGL. You can browse images with much smoother response than ever before.
An image viewer and browser utility - primarily for Linux Mint. Pix is part of the X-Apps project, which aims at producing cross-distribution and cross-desktop software.
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.
It is very bad and it is only for GNOME
You can use the Photos app to view or edit photos and videos in your Pictures library and on OneDrive, and to import photos and videos. The Photos app includes a wide range of editing options to enhance your photos, from automatic fixes to advanced adjustments.
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It lacks the simplicity and the 'just-works' feel of Irfan. gThumb keeps resizing images, doesn't respond logically to a scroll wheel and has an overal annoying interface.