Enter YouTube URL Below = Ctrl + V
How to use YouTube Thumbnail Image Downloader
Step 1: Go to www.YouTube.com, Search for a video.
Step 2: Copy the URL of the video (Example: https://www.youtube.com/watch?v=3nmnMtbzzjE ).
Step 3: Paste that URL in the box given above and then click the "Get YouTube Thumbnail" button.
Step 4: Choose your Thumbnail size and Download it.