There are many apps and websites for making YouTube thumbnails. But the most used and high-end version of YouTube thumbnails ...

Thumbnails draw audiences to your videos; an unattractive thumbnail may not. Most YouTubers will make their thumbnails unique and appealing to attract a broad audience to their channel.

When you upload a video to YouTube, you can choose from among several pre-selected thumbnails, or make your own. You can choose a video thumbnail when you initially upload the video, or later ...