Flickr - image and video hosting website
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
LayAuto - Automated window management for Mac ✨
Photobucket - Photobucket offers image hosting and free photo and video sharing.
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.
imgbox - Imgbox is a free image hosting service.