Fragment - A powerful image viewing suite with advanced metadata info
ACDSee - ACDSee is an image viewer that uses very little system resources, and it has a small, sleek size that won't take up much space on your system.
IrfanView - IrfanView ... one of the most popular viewers worldwide.
Photoscape - high quality photo editing software, that enables you to fix and enhance photos.
ImageGlass - You can use Image to view your digital images and photos of many different formats.
Polarr - MacOS, Windows, iOS, Android and online photo editing tools & free photo editors.