Flickr - image and video hosting website
MediaWiki - MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
TiddlyWiki - a non-linear personal web notebook
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.
Confluence - Confluence is content collaboration software that changes how modern teams work