Photography Products for macOS
PixCompare for Mac
Using PixCompare, you can compare picture files to search for duplicates or similar pictures in a large collection of picture files. It works on JPEG, PNG, TIF, GIF and many RAW files.
PixVeew
PixViewer is a simple any easy picture viewer and contact sheet printer for the Mac. Its main purpose is to browse quickly through a folder of image files. You can also directly move files to the trash while browsing. Printing supports up to 108 pictures per page.