Today I am going to show you how to download thumbnail images from any video on YouTube, including auto-generated ones, high-quality ones, and low-quality ones.
There are two ways of doing this. Let’s discuss them one by one:
YouTube automatically selects 3 thumbnails per video and adding either 1, 2, or 3 in the URL will give you access to all three so you can select the best one you want to use. Just replace VIDEOID with your video’s id.
Small auto-generated thumbnail 1 [120×90]
Small auto-generated thumbnail 2 [120×90]
Small auto-generated thumbnail 3 [120×90]
If you want to download the custom thumbnail that you (or another creator) made then substitute the VIDEOID in the following URLs.
You’ll note that there is a lot more flexibility with size options:
Small custom thumbnail [320×180]
Medium custom thumbnail at 4:3 ratio [480×360]
Large custom thumbnail [1280×720 or 1920×1080]
(only available if video has 720p or 1080p option)