Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.

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.

Flickr - image and video hosting website

Google Photos - All your photos are backed up safely, organized and labeled automatically, so you can find them fast, and share them how you like.

Photobucket - Photobucket offers image hosting and free photo and video sharing.

Piwigo.org - Manage your photo collection with Piwigo. Piwigo is open source photo gallery software for the web. Designed for organisations, teams and individuals.