QuickLook - Bring macOS “Quick Look” feature to Windows.
Seer - A Windows Quick Look Tool in Qt.
FinderPop - finderpop OS X Carbon Cocoa Tiger Snow Leopard Mountain Lion turly
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
Viso - Beautiful minimal image viewer for MacOS
Eye of Gnome (eog) - Simple image viewer for the GNOME desktop.