What is the maximum resolution of a YouTube thumbnail?

1280×720 — that is what maxresdefault.jpg holds, and it is the largest size YouTube keeps. Uploaders are told to supply 1280×720 and YouTube does not store anything bigger, so no tool can give you a 4K thumbnail. If you see a site promising 1920×1080, it is upscaling the 1280×720 file and adding nothing but blur. Run the result through an image resizer yourself if you need a larger canvas and want to control the interpolation.

Why is the HD version missing for some videos?

maxresdefault.jpg is generated from the uploaded video, so a clip uploaded at 360p or 480p never gets one. Very old videos from before 2012 often have nothing above hqdefault either. The card greys out and says it is not available instead of silently handing you a grey placeholder — that placeholder, a 120×90 image, is what YouTube returns in some regions, and the page detects and rejects it.

Does this work for YouTube Shorts?

Yes. A Shorts URL is just /shorts/VIDEOID, and the thumbnails live at exactly the same addresses as a regular video. The one thing to expect is letterboxing: Shorts are vertical, but thumbnails are stored in a landscape frame, so a Shorts thumbnail comes back as a vertical image centred in a 1280×720 canvas with black bars down both sides. Crop it if you only want the picture.

Why are there black bars on the 480×360 image?

hqdefault and sddefault are 4:3 files held over from YouTube's pre-2010 player, and modern 16:9 video gets padded top and bottom to fit them. mqdefault (320×180) and maxresdefault (1280×720) are true 16:9 and have no bars. If you need a clean 16:9 crop at a middling size, take maxresdefault and scale it down rather than using hqdefault.

What are the three numbered frames?

When a video finishes processing, YouTube grabs three stills — roughly a quarter, halfway and three-quarters of the way through — and offers them as thumbnail choices. They stay reachable at hq1, hq2 and hq3 whether or not the uploader used them. They are useful when the custom thumbnail is a face with text slapped over it and you want the actual footage underneath.

Is downloading a YouTube thumbnail legal?

The image is copyright of whoever made the video, the same as the video itself. Using one for commentary, a review, a reaction video, a news piece or a class is normally fair use or fair dealing in most jurisdictions; reposting it as your own thumbnail is not, and YouTube's own policy on reused content covers that. Credit the channel, and do not use a thumbnail in a way that implies the creator endorsed you.

Do I need an API key or a signup?

No. Thumbnail addresses are deterministic — https://i.ytimg.com/vi/VIDEOID/maxresdefault.jpg and nothing else — so there is no API call to authenticate. Tools that ask you to log in are collecting the link, not fetching the picture.

Does anything get uploaded to your server?

Nothing. The page is static and the parsing runs in your browser; the only network traffic is your own browser pulling the images from i.ytimg.com, exactly as it would if you had opened the thumbnail URL yourself. We never see the link you pasted.

Can I download thumbnails from a private or age-restricted video?

Private and deleted videos have no public thumbnail, so the cards come back empty. Age-restricted and unlisted videos usually do still serve their thumbnails, because the CDN path does not check viewer permissions — but if a video has been removed, nothing is left to fetch.

The download opened a new tab instead of saving. Why?

The page first fetches the image into memory so it can hand your browser a proper file with a sensible name. If a browser extension, a strict content-blocker or a corporate proxy blocks that cross-origin request, the tool falls back to opening the image directly — right-click it and choose Save image as, and you get the same file.

YouTube Thumbnail Downloader — Full HD, Free

YouTube video, Shorts or youtu.be link

Format

Paste a YouTube link above to see every thumbnail it has.

Try a link shape:

Every YouTube thumbnail size and address

All of them sit under https://i.ytimg.com/vi/VIDEOID/. Swap /vi/ for /vi_webp/ and the extension for .webp to get the WebP copy.

File	Pixels	Ratio	Notes
maxresdefault	1280×720	16:9	Only exists if the video was uploaded at 720p or higher. This is the file the uploader supplied.
sddefault	640×480	4:3	Letterboxed with black bars on a widescreen video. Present from 480p sources upwards.
hqdefault	480×360	4:3	Always exists, for every video ever uploaded. Also black-barred.
mqdefault	320×180	16:9	Always exists, no bars.
default	120×90	4:3	The tiny sidebar thumbnail.
hq1 / hq2 / hq3	480×360	4:3	Auto-generated stills from roughly 25%, 50% and 75% of the running time — the three options YouTube offered the uploader.

Link shapes the parser accepts

youtube.com/watch?v=ID — including anything after it: &t=90, &list=…, campaign parameters.
youtu.be/ID?si=… — the share-sheet link, with or without the tracking suffix.
youtube.com/shorts/ID and youtube.com/live/ID.
youtube.com/embed/ID, youtube-nocookie.com/embed/ID and the old /v/ID player path.
m.youtube.com and music.youtube.com hosts.
The bare 11-character ID on its own, if that is all you have.

A playlist or channel link has no single video behind it, so the tool says so rather than guessing.

Paste a YouTube link and get every thumbnail the video has: the full-resolution 1280×720 image, the standard and medium sizes, and the three auto-generated frames YouTube picked from the timeline. The page works out the thumbnail addresses from the video ID in your link, so nothing is sent to a server here — your browser loads the images straight from YouTube's own CDN. Shorts, youtu.be links, embed URLs and bare video IDs all work.

How it works

1
Copy the video link Use Share on the video, or just copy the address bar. A watch URL, a youtu.be short link, a Shorts URL, an embed URL or the bare 11-character video ID all parse correctly, and extra parameters like ?t=42 or ?si=… are ignored.
2
Paste it in the box The thumbnails appear as you type — no button to press. Each card reports the real pixel size once the image loads, so you can see at a glance whether the video actually has a 1280×720 version.
3
Pick a size and download Hit Download on the card you want and the file saves as videoID-maxresdefault.jpg. Copy URL puts the direct CDN address on your clipboard instead, which is what you want if you are embedding rather than saving.
4
Switch to WebP if you need it smaller The format selector swaps to YouTube's WebP copies of the same images — same pixels, usually 25-35% fewer bytes. Handy when the thumbnail is going on a web page rather than into a video editor.

Your data stays private

All processing happens entirely in your browser. No files, text, or data are ever sent to our servers. You can disconnect from the internet and this tool will still work.

Frequently asked questions

What is the maximum resolution of a YouTube thumbnail?: 1280×720 — that is what maxresdefault.jpg holds, and it is the largest size YouTube keeps. Uploaders are told to supply 1280×720 and YouTube does not store anything bigger, so no tool can give you a 4K thumbnail. If you see a site promising 1920×1080, it is upscaling the 1280×720 file and adding nothing but blur. Run the result through an image resizer yourself if you need a larger canvas and want to control the interpolation.
Why is the HD version missing for some videos?: maxresdefault.jpg is generated from the uploaded video, so a clip uploaded at 360p or 480p never gets one. Very old videos from before 2012 often have nothing above hqdefault either. The card greys out and says it is not available instead of silently handing you a grey placeholder — that placeholder, a 120×90 image, is what YouTube returns in some regions, and the page detects and rejects it.
Does this work for YouTube Shorts?: Yes. A Shorts URL is just /shorts/VIDEOID, and the thumbnails live at exactly the same addresses as a regular video. The one thing to expect is letterboxing: Shorts are vertical, but thumbnails are stored in a landscape frame, so a Shorts thumbnail comes back as a vertical image centred in a 1280×720 canvas with black bars down both sides. Crop it if you only want the picture.
Why are there black bars on the 480×360 image?: hqdefault and sddefault are 4:3 files held over from YouTube's pre-2010 player, and modern 16:9 video gets padded top and bottom to fit them. mqdefault (320×180) and maxresdefault (1280×720) are true 16:9 and have no bars. If you need a clean 16:9 crop at a middling size, take maxresdefault and scale it down rather than using hqdefault.
What are the three numbered frames?: When a video finishes processing, YouTube grabs three stills — roughly a quarter, halfway and three-quarters of the way through — and offers them as thumbnail choices. They stay reachable at hq1, hq2 and hq3 whether or not the uploader used them. They are useful when the custom thumbnail is a face with text slapped over it and you want the actual footage underneath.
Is downloading a YouTube thumbnail legal?: The image is copyright of whoever made the video, the same as the video itself. Using one for commentary, a review, a reaction video, a news piece or a class is normally fair use or fair dealing in most jurisdictions; reposting it as your own thumbnail is not, and YouTube's own policy on reused content covers that. Credit the channel, and do not use a thumbnail in a way that implies the creator endorsed you.
Do I need an API key or a signup?: No. Thumbnail addresses are deterministic — https://i.ytimg.com/vi/VIDEOID/maxresdefault.jpg and nothing else — so there is no API call to authenticate. Tools that ask you to log in are collecting the link, not fetching the picture.
Does anything get uploaded to your server?: Nothing. The page is static and the parsing runs in your browser; the only network traffic is your own browser pulling the images from i.ytimg.com, exactly as it would if you had opened the thumbnail URL yourself. We never see the link you pasted.
Can I download thumbnails from a private or age-restricted video?: Private and deleted videos have no public thumbnail, so the cards come back empty. Age-restricted and unlisted videos usually do still serve their thumbnails, because the CDN path does not check viewer permissions — but if a video has been removed, nothing is left to fetch.
The download opened a new tab instead of saving. Why?: The page first fetches the image into memory so it can hand your browser a proper file with a sensible name. If a browser extension, a strict content-blocker or a corporate proxy blocks that cross-origin request, the tool falls back to opening the image directly — right-click it and choose Save image as, and you get the same file.

From the blog

Every YouTube Thumbnail Size, and What They Are Actually For What maxresdefault really holds, why hqdefault has black bars, and how to use the three auto-generated frames. Read the post →