Thumbnail me is a free and open-source software to create thumbnail sheets from videos on Windows. You just have to import a video and set up some configurations and this software will automatically ...

To make a custom thumbnail for YouTube, you can use editing tools that are likely already available on your PC or Mac computer. You can't create a custom thumbnail on the YouTube website itself, but ...

YouTube automatically captures three thumbnail images from uploaded videos and gives you the choice of using any one of these images. There's no way to upload a separate image to use as the video's ...