How to download a YouTube thumbnail in full size
Every YouTube video has a thumbnail, and YouTube stores it as a small set of image files, one per size, at public addresses on its image server. A YouTube thumbnail downloader finds those files for a video and lets you save the one you want.
This one works entirely in your browser. There is no upload, no account and no daily limit, because the images come straight from YouTube. Paste a link at the top of the page and you see every size in a second or two.
How to download a YouTube thumbnail
- Copy the link of the video. A normal watch link works, and so do
youtu.beshort links, Shorts links, embed links, live links and a bare 11-character video ID. - Paste it into the box at the top of this page and press Get thumbnails.
- The largest thumbnail the video has appears on the left. Press Download best quality to save it as a JPG.
- Want a different size? Every size is listed on the right with its dimensions. Use Download JPG to save it, Open to view it in a new tab, or Copy URL to get its address.
Files are saved with the video ID and the size in the name, such as dQw4w9WgXcQ-maxresdefault.jpg, so several downloads from different videos don't overwrite each other.
The five thumbnail sizes YouTube serves
- maxresdefault.jpg, 1280×720. The full HD version, in the 16:9 shape of a widescreen video. This is the one you want for slides, articles and design work. Not every video has it.
- sddefault.jpg, 640×480. A 4:3 image. On a widescreen video it has black bars above and below the picture. Not every video has this one either.
- hqdefault.jpg, 480×360. Also 4:3 with black bars. This is the most dependable size: it was there even for YouTube's very first upload from 2005, which has neither of the two larger sizes.
- mqdefault.jpg, 320×180. A 16:9 image with no bars. Good for small previews and lists.
- default.jpg, 120×90. The tiny 4:3 version, with bars.
Every file lives at an address of the same shape: https://i.ytimg.com/vi/VIDEO_ID/maxresdefault.jpg, with the video ID and the file name swapped in. You could build the link by hand. The tool simply does it for all five at once and tells you which ones exist. YouTube also keeps WebP copies under /vi_webp/ with a .webp ending; the tool sticks to JPG, which opens everywhere.
Why the HD thumbnail is sometimes missing
The 1280×720 and 640×480 files only exist for some videos. When you ask YouTube for one that doesn't exist, it does not show an error page. It sends back a small gray 120×90 placeholder with a "not found" status, which is easy to save by mistake if you are copying links by hand.
The tool checks each size before showing it. Missing sizes are greyed out and labelled Not available for this video, and the main download button always points at the largest size that really exists. A quick way to see this for yourself: YouTube's first video, uploaded in 2005, shows only the three smaller sizes.
YouTube Shorts thumbnail downloader
Shorts use the same image addresses as every other video, so this works as a YouTube Shorts thumbnail downloader without any extra step. Paste the link with /shorts/ in it as it is. As with any video, the larger sizes may be missing, and the list shows you which ones exist.
When the thumbnail looks out of date
If a creator has just changed a thumbnail, you may still see the old one for a while, because images are cached by YouTube's servers and by your browser. Try again later, or open the image in a private window. The tool always asks for the current file at YouTube's address; it does not keep copies of its own.
Thumbnail vs a screenshot of the video
A screenshot is not the same thing. Most popular videos use a custom thumbnail: an image the creator designed and uploaded separately, often with text and a face that never appear in the video itself. Pausing the video and taking a screenshot gets you a frame from the footage, at the size of your screen, sometimes with the player controls on top. The thumbnail downloader gets you the exact image the creator chose, at the size YouTube stores it.
The reverse is also true: if you want a particular moment from the video rather than its cover image, pause on it and take a screenshot, because no thumbnail size will contain it.
What people use thumbnails for
- Creators line up the thumbnails of the top videos for a search to see what stands out: faces, text size, colours. And if you lost the original file of your own thumbnail, you can get it back here, in HD if your video has that size.
- Designers collect references for layout and typography.
- Teachers and writers show which video they are talking about in a slide or a post, next to a link to the video.
- Researchers keep a record of how a video was presented at a point in time, since creators often change thumbnails after upload.
Can you use a downloaded thumbnail?
A thumbnail is the creator's work. Downloading it is easy; reusing it is a separate question. Your own thumbnails are yours to use anywhere. For someone else's, reference, commentary and private research are the usual uses, and it is good practice to link to the video. Before putting another creator's thumbnail in your own video, ad or product, ask them. This is general guidance, not legal advice.
How the tool works, and what it doesn't do
The tool takes the video ID from your link and asks YouTube's image server for the five files directly from your browser. When you press a download button, your browser fetches that image and saves it as a file. No Claras server handles the images. The video title and channel name under the preview come from YouTube's public oEmbed service.
It doesn't make thumbnails, resize them or remove text from them, and it can't get an image YouTube doesn't publish, such as a size larger than 1280×720.
Beyond the thumbnail
A thumbnail tells you how a video sells itself. To see what it actually covers, Claras gives you an AI summary with the key points, clickable chapters and the full transcript of the same video. For the rest of a video's public data, including every thumbnail at once alongside its tags and stats, use the metadata viewer. You can start with a free account, 3 videos a month with no card, or see pricing for Pro and Unlimited, which both start with 14 days free.