YouTube Thumbnail URL Generator
Build the direct thumbnail URL for any YouTube video, in every available size.
Video ID:
How to use this tool
- Select your file, drag it onto the box above.
- Processing starts automatically — there is nothing to configure.
- Check the result panel, which shows the original size, the final size and the page count.
- Click Download to save it.
YouTube thumbnails follow a fixed pattern: img.youtube.com/vi/VIDEO_ID/SIZE.jpg. Once you know the video ID, every size is predictable — useful for embedding thumbnails in a page, a feed, or a spreadsheet.
YouTube Thumbnail URL Generator — the specification
| Pattern | https://img.youtube.com/vi/VIDEO_ID/SIZE.jpg |
|---|---|
| Sizes | maxresdefault, sddefault, hqdefault, mqdefault, default |
| Alternative host | i.ytimg.com serves the identical paths |
| WebP variant | Replace .jpg with .webp on vi_webp/ for smaller files |
YouTube Thumbnail URL Generator: what can go wrong
These are the failures that actually come up, in roughly the order they happen:
- The URL is not recognised — paste a watch, youtu.be, Shorts or embed link, or the bare ID.
- You used maxresdefault for a video that has none, giving a broken image. Fall back to hqdefault, which always exists.
How it works
The video ID is extracted from whatever URL form you paste — watch links, youtu.be short links, Shorts, embeds, or a bare ID — and the thumbnail URLs are built from it. YouTube publishes thumbnails at fixed, predictable paths, so no API call is needed.
Images load directly from YouTube's servers into your browser. Nothing passes through us.
A worked example
Given the URL https://www.youtube.com/watch?v=dQw4w9WgXcQ, this page returned:
YouTube URL or video ID Video ID: dQw4w9WgXcQ Max resolution 1280 × 720 Only exists if the uploader provided an HD thumbnail. https://img.youtube.com/vi/dQw4w9WgXcQ/maxresdefault.jpg Open image Copy URL Standard definition 640 × 480 Usually present. https://img.youtube.com/vi/dQw4w9WgXcQ/sddefault.jpg Open image Copy URL High quality 480 × 360 Always present. https://img.youtube.com/vi/dQw4w9WgXcQ/hqdefault.jpg Open
5 thumbnail sizes were resolved. They come straight from YouTube’s own image host, so nothing about the video is fetched or stored by us — the page only builds the URLs.
Who needs YouTube Thumbnail URL Generator
Developers embedding video thumbnails without calling the YouTube API, and anyone building a list of thumbnail URLs in bulk.
YouTube Thumbnail URL Generator — frequently asked questions
What is the URL pattern?
https://img.youtube.com/vi/VIDEO_ID/hqdefault.jpg, substituting the size you want. i.ytimg.com serves the same paths identically.
Which size is always available?
hqdefault, mqdefault and default exist for every video. sddefault usually does. maxresdefault only when the uploader supplied an HD thumbnail.
Do I need the YouTube API for this?
Not for thumbnails — the URLs are predictable from the video ID alone. You would need the API for titles, descriptions, tags and statistics.
Is this tool really free?
Yes. No account, no trial period, no watermark on the output and no cap on how many times you use it. The site is funded by advertising.
Do I need to install anything?
No. There is nothing to download and no extension to add — it runs in the browser you are reading this in.
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Background reading: Image Size Requirements for Every Major Platform
Your file never leaves your device. Open your browser's Network tab while you use this page and you will see no upload — how that works.
Disclaimer. Published requirements change without notice. Confirm against the official source before you submit. Full disclaimer.