Screencastify is a Chrome extension that allows you to record your computer’s screen. Screencastify: How to Record, Edit, and Export What Is Screencastify So today, I’ll walk you through the extension and how to record on Screencastify. If you are in the same boat as me and need a lightweight yet fully capable tool to record screen, I suggest giving Screencastify a try. In my case, I mostly use the recording in my blogs with the length ranging from a few seconds to a minute. Depending on what you are looking for, the choice can get really confusing. There are plenty of screen recording applications available in the market.