Description: ShareX is a free and open-source program that lets you capture or record any area of your screen and share it with a single press of a key. It also allows uploading images, text or other types of files to over 80 supported destinations you can choose from.
Interface: Windows UWP
License: Open Source
Functions: Screenshots, Sharing, Image Manipulation
Platforms: Windows x64
Commentary: Supports a decent array of image editing tools, sharing to self-hosted sites (such as Seafile), and blur/stitch options
Usage Example: Install from Windows Store and start taking screenshots