No, You can not download thumbnails from private or unlisted videos using our thumbnail grabber. Our YouTube thumbnail downloader only will work with publicly obtainable video clips. Non-public or unlisted videos have to have correct authentication which happens to be past the scope of this thumbnail extractor tool. Our mission https://youtube-thumbnail-grabber29036.life3dblog.com/37044225/top-latest-five-youtube-thumbnail-downloader-urban-news