Placeit is an online template-based design application that allows you to create design items and widgets with minimal efforts. The application is provided by Envato and similar to other offerings in the same market. It does offer an extended choice of design by taking advantage of the subscription-based Envato marketplace. To create a YouTube video thumbnail using Placeit, log in to your account. If you don't have a Placeit account, create a new one. Note that the free account will not enable you to download and use your design.