Do you like a thumbnail used for your favourite video and wish to download it? This is where you should be. The YT Thumbnail Downloader would help you save all the thumbnails that you like. Find the video and get the URL for the same. It is easy to copy the URL from the internet browser. Play the video and copy the URL from the address bar. Paste the URL address in the textbox on YT Calculator and press submit. You will get different option for resolution for downloading the image or the thumbnail. Whichever you wish to save, click the download button close to the choice. And, it would be done.