Screencast-O-Matic is a free screen and webcam recorder that captures video from your computer screen and shares it on Screencast-O-Matic.com, YouTube. You can also save the video to a video file on your computing device. You get additional features when you upgrade to the software Pro Features. In other words, Screencast-o-Matic allows you to create and host screen casts online. Screen casts capture your computer desktop as a video, and allows you to capture additional audio as voice over. Whenever you watch a tutorial video where a computer screen is displayed with a person who is simultaneously giving instructions, you’ve seen a screen cast. Once you record your video, Screencast-o-Matic allows you to publish it online.