nomacs - nomacs is a free, open source image viewer, which supports mu
Fragment - A powerful image viewing suite with advanced metadata info
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
ImageGlass - You can use Image to view your digital images and photos of many different formats.
qView - qView is a Qt-based image viewer designed to be practical and minimal
IrfanView - IrfanView ... one of the most popular viewers worldwide.