Full size / original

Get the Full-Size Original Thumbnail

"Full size" means the largest, uncompressed version YouTube stored for that upload — not a cropped preview or a resized copy.

Works with youtube.com/watch, youtu.be, Shorts, and embed links.

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Available resolutions

Ready to download

Full size vs. HD — what's the difference?

In practice they're usually the same file. "Full size" just describes wanting the original, uncropped image rather than the small square or 16:9 crop YouTube shows in search results and suggested-video grids.

Looking to grab a thumbnail from a specific point in a video rather than the cover image YouTube picked? That's a different tool — a frame-grabber that reads the video stream itself, not the thumbnail file. GrabThumb only retrieves the thumbnail image YouTube already generated.

Frequently asked

What does "full size" mean for a YouTube thumbnail?

It refers to the largest, unmodified thumbnail file YouTube stored for the video — as opposed to the small cropped versions shown in feeds and search results.

Is full size the same as HD?

Usually yes. Both point to the same maxresdefault.jpg file when it exists; "full size" just emphasizes getting the original rather than a resized crop.

Can I download a thumbnail from any video, not just popular ones?

Yes — the tool works on any public YouTube video or Short, regardless of view count, as long as YouTube generated a thumbnail for it.