Vidra - The easiest and fastest way to make an explainer video.

Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.

OFFEO - Create amazing social videos in minutes 🎬

Shutter - Shutter is a feature-rich screenshot program.

ScreenSpace.io - ScreenSpace is a self-service platform where emerging startups can easily create compelling, studio-quality product videos to raise capital, boost brand engagement, multiply conversions, and elevate customer success with little effort.

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