YouTube Thumbnail Downloader
Paste any YouTube link and get the video's thumbnail in every size YouTube stores — one-click downloads, previews at real proportions, and honest "not available" labels for sizes YouTube never generated.
Get every thumbnail size for a video
Works with watch?v=, youtu.be, Shorts, embed, and live links — or a bare 11-character video ID.
How the lookup works
Every YouTube video has an 11-character ID, and YouTube serves its thumbnails at predictable
addresses built from that ID. This tool extracts the ID from whatever link you paste — for
example, the share link https://youtu.be/jNQXAC9IVRw?si=abc parses to the ID
jNQXAC9IVRw, whose largest thumbnail lives at
https://img.youtube.com/vi/jNQXAC9IVRw/maxresdefault.jpg — and then asks YouTube's image server which of the five sizes really
exist. That derivation runs through the same tested engine as the tool above, at build time, so
this paragraph cannot drift from the code.
The five sizes, honestly
| Name | Pixels | Exists for |
|---|---|---|
default | 120×90 | Effectively every public video |
mqdefault | 320×180 | Effectively every public video |
hqdefault | 480×360 | Effectively every public video |
sddefault | 640×480 | Some uploads only |
maxresdefault | 1280×720 | Some uploads only |
The two largest sizes are the catch: YouTube generates sddefault and
maxresdefault only for some uploads. For the rest, requesting those URLs returns a
gray 120×90 placeholder. A tool that hands you a download button anyway is handing you that placeholder
— this one probes each size (the HTTP status and the decoded pixel width) and labels missing sizes
not available for this video instead. Note the odd one out:
sddefault and the two smallest sizes are stored in 4:3 frames, so
hqdefault (480×360) and sddefault (640×480) carry black bars above and
below the 16:9 picture. The clean 16:9 files are mqdefault and
maxresdefault.
Whose thumbnails are these?
The creator's. A thumbnail is artwork uploaded (or a frame chosen) by the person who published the video, and downloading a copy does not change who owns it. The legitimate uses this tool is built for: recovering your own thumbnails when the source file is gone, keeping backups, and studying what works in your niche as research. If you want to reuse someone else's thumbnail, ask them — "it was publicly served" is not a license. ThumbnailPro is not affiliated with or endorsed by YouTube or Google, and this site deliberately uses no YouTube branding.
Frequently asked questions
Which thumbnail sizes does YouTube actually store?
Five per video: default (120×90), mqdefault (320×180), hqdefault (480×360), sddefault (640×480), and maxresdefault (1280×720). The first three exist for effectively every public video; sddefault and maxresdefault are generated only for some uploads. There is no secret 4K thumbnail — 1280×720 is the ceiling.
Why is maxresdefault "not available" for the video I pasted?
YouTube only generates the two largest sizes for some uploads. When a size is missing, YouTube answers the request with a gray 120×90 placeholder image instead of the thumbnail. This tool checks each size and labels missing ones honestly rather than letting you download that placeholder.
Which links does the parser understand?
Standard watch URLs (youtube.com/watch?v=…), youtu.be share links, Shorts, embed, and /live/ URLs, plus a bare 11-character video ID. Channel and playlist links are rejected with an explanation, because they do not identify a single video.
Is downloading a thumbnail legal?
The images are served publicly by YouTube, but the artwork belongs to the video’s creator. Downloading your own thumbnails, keeping backups, or studying designs for research is the intended use. Republishing someone else’s thumbnail may require their permission — when in doubt, ask the creator.
Does the video URL I paste get sent to this site?
No. The link is parsed by JavaScript in your browser, and your browser then requests the images directly from YouTube’s image servers — the same requests it makes when you browse YouTube. This site has no server that sees your input.
Can I get a thumbnail for a deleted or private video?
Usually not. YouTube removes or blocks thumbnails for deleted and private videos, so all sizes will come back unavailable. This tool can only show what YouTube still serves.
Links are parsed locally in your browser and never transmitted to this site; your browser fetches the images directly from YouTube. How each check works — including the placeholder-detection trick — is documented on the methodology page.