About this site
YouTube Thumbnail Downloader is an independent, self-funded website. It is not affiliated with, endorsed by, or connected to YouTube or Google. YouTube is a trademark of Google LLC.
What it does
You paste a YouTube link. The page asks YouTube's own image server which thumbnail files exist for that video, and lists only the files that came back. Every size printed next to a thumbnail is measured from the file itself — nothing is filled in from a fixed table, and no size is listed unless that file really downloaded.
Why it exists
Most thumbnail download pages print the same list of resolutions for every video, including ones that are not there. On those pages, the largest row is often a grey placeholder image that YouTube served alongside a 404. This page checks the response before it lists anything, and it measures the pixels after.
Who runs it
One independent developer builds and runs this site as a side project. It is not a company, and it does not publish the operator's personal name — the site name and the contact address on the contact page are the identity used for it.
What it does not do
- No accounts, no sign-in, no saved history
- No batch or bulk downloads
- No uploads — there is no server side to upload anything to
- No image hosting — every thumbnail comes straight from
img.youtube.com
How it is built
One HTML file, one stylesheet, one script. No framework. There is no analytics on the page today. If advertising is added later, the privacy policy will say so first.
Getting in touch
Questions, corrections, or something broken: see the contact page.