Under normal circumstances, Youtube does not allow you to download the channel cover image. You cannot right-click on the channel banner image and see the save image option.
You can use the YouTube Banner Downloader Tool to download the Youtube Channel cover image. To do this, just enter any YouTube channel or video URL into the tool; the tool will provide a direct link to the banner image that you can download. View and download different sizes of Youtube Channel Banner Image.
YouTube allows you to view the channel banner in 17 different sizes using the Youtube Data Api V3 in this regard. These dimensions are usually 2560 pixels by 1440 pixels.
It makes it easier for you to see and download these 17 banner images.
