Photos on macOS - Photos keeps your images organized and accessible. Rediscover favorite shots with Memories. Access them on your devices with iCloud Photos.
ACDSee - ACDSee is an image viewer that uses very little system resources, and it has a small, sleek size that won't take up much space on your system.
Movavi Photo Manager - Focus on the memories, forget about managing photos
digiKam - Professional Photo Management with the Power of Open Source
CyberLink PhotoDirector Suite - CyberLink PhotoDirector Suite is the best photo editor for creative photographers who want to create or design a stunning part.
Flickr - image and video hosting website