YouTube Thumbnail Downloader

You can download thumbnails in multiple resolutions including maxresdefault (1280×720), hqdefault (480×360), mqdefault (320×180), and sddefault (640×480).

Thumbnails are publicly visible images. However, they may be copyrighted by the video creator, so use downloaded thumbnails only for personal or fair-use purposes.

Yes, it works on any public YouTube video. Private or unlisted videos may not have accessible thumbnails.