Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Screenzy - A simple screenshot beautifier
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Screely - Screely instantly generates dribbble-ready images. Simply upload your screenshot and we'll do the rest.
LightShot - The fastest way to take a customizable screenshot.
Setapp - Your shortcut to prime apps on Mac, an App Store alternative