PhotoQt

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iPhoto

IrfanView is a commercial image viewer and editor that can be used to orginize and convert images for Microsoft Windows. The application can handle video and audio files, while providing basic image editing capabilities. IrfanView is free for non-commercial use, while commercial use requires payment.

nomacs is a free, open source, cross-platform image viewer. With nomacs you can easily view and manage all common file formats including jpg, png, tif, bmp, raw and many more. The sleek user interface provided by nomacs features a semi-transparent widgets that display additional information such as thumbnails, metadata or histogram.

With Phototheca you can simplify the management of your digital assets, be it photos or videos. Phototheca is an media viewer and management tool used by professionals and hobbyists alike. Phototheca offers a plethora of features including photo editing tools, password protected safe-boxes, metadata support, instant search, and much more.

Back up unlimited photos and videos for free, up to 16MP and 1080p HD with Google Photos. The application and service is provided by Google and works on your phone, tablet or computer.

Xee³ Image Viewer is an streamlined and convenient image browser that allow you to manage your photos and rediscover old memmories. Xee³ Image Viewer share many similarities with macOS very own Preview app, the simplicity of the application makes it easy to browse the entire contents of folders and archives, move and copy image files quickly. The application supports most of the image formats commonly used today.

Apple Photos is an app native to the macOS and iOS eco system. The application comes pre-installed with all Macintosh computers, iPhones and iPads. With Apple Photos you can manage, store and browse all your photos in a neat application.