For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Dropbox - Online Sync and File Sharing
Flickr - image and video hosting website
Google Drive - Access and sync your files anywhere
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
Mega - Secure File Storage and collaboration
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.