digiKam

iKam is a useful file manager that lets you organize, edit, and view all the images you have on your Mac. Best of all, it's free and open-source, and you can even edit and share your photos as RAW files. One of DigiKam's main selling points is the different options it offers. It's not just a simple file organizer. You can also create albums with all kinds of details (especially in regards to taggi...