Flickr - image and video hosting website
overGrive - Complete Google Drive desktop client for Linux
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
Syncdocs - Syncdocs syncs folders between all your PCs and Google Docs.
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.
drive-cli - Google Drive client for the commandline