nomacs - nomacs is a free, open source image viewer, which supports mu
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
qimgv - Simple image viewer written in qt. Supports webm playback.
sxiv - Simple X Image Viewer. Contribute to muennich/sxiv development by creating an account on GitHub.
gThumb - gThumb is an image viewer and browser for the GNOME Desktop. Features Image Viewer
feh - feh is an X11 image viewer aimed mostly at console users.