Flickr - image and video hosting website
PhotoPrism.app - PhotoPrism® is an AI-Powered Photos App for the Decentralized Web. It makes use of the latest technologies to tag and find pictures automatically without getting in your way. You can run it at home, on a private server, or in the cloud.
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
Piwigo.org - Manage your photo collection with Piwigo. Piwigo is open source photo gallery software for the web. Designed for organisations, teams and individuals.
PhotoStructure - PhotoStructure is a complete photo and video management application designed for the whole family.
Photobucket - Photobucket offers image hosting and free photo and video sharing.