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.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
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.
LightShot - The fastest way to take a customizable screenshot.