Smart Thumbnail is a Free online tool, with the help of which you can download Youtube Video Thumbnail in Different Sizes and Qualities. Just Paste your Youtube Video Link in the Input Box Given Below and press "Download Youtube Thumbnail", and That's it.

Right Click and click on 'Save Image As..' to save the images.

HD Image (1280x720)

Download HD Thumbnails

SD Image (640x480)

Download SD Youtube Thumbnail

Normal Image (480x360)

Download Normal Youtube Thumbnail (480x360)

Normal Image (320x180)

Download Normal Youtube Thumbnail (320x180)

Normal Image (120x90)

Download Normal Youtube Thumbnail (120x90)