It is very easy to use this YouTube Thumbnail Grabber Tool. You have to copy the YouTube video URL. This tool will support YouTube short links too. Just paste the video URL on the input box then YouTube Thumbnail will be displayed for all image quality. Click the Download Thumbnail button to start the download.
To get the URL of YouTube Thumbnail, paste the YouTube video URL then right click on the image and click open in new tab option where you can copy the URL of YouTube Thumbnail.
Yes, you can reuse YouTube Thumbnail of others but you need to get the permission from the owner of the video otherwise he/she will file copyright claim or strike. Reuse of Thumbnail is not SEO friendly so don't do that create your own attractive thumbnail.
You can download YouTube Thumbnail easily with the help of this YouTube Thumbnail Downloader website. You need to input the YouTube video URL then the tool will display all quality thumbnail with download button.