What are some alternatives?
When comparing Imgur and ShareX, you can also consider the following products
Flickr - image and video hosting website
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Photobucket - Photobucket offers image hosting and free photo and video sharing.
Snagit - Screen Capture Software for Windows and Mac
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.
LightShot - The fastest way to take a customizable screenshot.