Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Flickr - image and video hosting website
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
LightShot - The fastest way to take a customizable screenshot.
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.