With this service you can retrieve video thumbnails from YouTube videos.
To start, just put a YouTube URL into the input box and hit the [Get images] button.
Another way to quickly get images is to send the YouTube video ID through the URL:
SCHEMA
https://md5calc.com/youtube/thumbs/<VIDEO_ID>
EXAMPLE (open):
https://md5calc.com/youtube/thumbs/Pgmx7z49OEk