Proprietary ImageGlass Alternatives

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.

FastStone Image Viewer is a free image browser, converter and editor that supports common graphic formats such as BMP, JPEG, JPEG 2000, GIF, PNG, PCX, TIFF, WMF, ICO, TGA and raw files. FastStone Image Viewer is available for Microsoft Windows.

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.

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.

Windows Photo Viewer is an image viewer developed by Microsoft that was included with the Windows NT family of operating systems. Windows Photo Viewer was first iintroduced with Windows XP and Windows Server 2003 under its former name. It was temporarily replaced with Windows Photo Gallery in Windows Vista, but was resurfaced in Windows 7.