Thumbnail Downloader is a free Android application developed by Harish VS under the Utilities & Tools category. As the name suggests, this app allows users to download thumbnails of their favorite YouTube videos and store them on their phone's storage. The app has a simple user interface and is easy to use.

To download a thumbnail, all you need to do is copy the URL of the YouTube video you want to download and paste it into the app's search box. After clicking the search button, the app will show you the thumbnail of the video. Clicking the download button will save the thumbnail image to your phone's storage.

If you need more features, you can request them by emailing the developer at The app credits WIRED for the thumbnail used in the app's screenshot. Overall, Thumbnail Downloader is a useful app for those who want to download YouTube video thumbnails quickly and easily.