ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Camtasia - Camtasia 2018 makes it easy to record your screen and create polished, professional-looking videos.
LightShot - The fastest way to take a customizable screenshot.
Loom - Loom is a screen recording extension for Chrome that gives people the ability to create and share media. Create your own videos using your camera, screen view, and audio. Read more about Loom.