ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
ScreenToGif - This tool allows you to record a selected area of your screen and save as a animated gif.
Shutter - Shutter is a feature-rich screenshot program.
recordit.co - Make a short video capture of your desktop as a gif.
Snipping Tool - Use Snipping Tool to capture a screen shot, or snip, of any object on your screen, and then annotate, save, or share the image