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YouTube thumbnail downloader and tester

Download any video’s thumbnail in every size, from HD 1280×720 down to small. Test your own thumbnails in a YouTube-style home page, search and phone view before you upload. Fix size and file limits in one click.

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How to use this tool

  1. Paste a video link Paste a YouTube watch, Shorts or youtu.be link.
  2. Download a size Pick HD 1280×720 or a smaller size and click Download.
  3. Add your thumbnails Switch to “Test my thumbnails” and add up to 3 images with your title.
  4. Compare the views See them on the home page, in search and on a phone, in light and dark themes.
  5. Export and upload Fix size problems with “Export 1280×720 JPG”, then upload in YouTube Studio.

Size rules

  • Use 1280×720 pixels (16:9).
  • Keep the file under 2 MB. JPG is usually smallest.
  • Old videos may not have the HD size; the tool shows which sizes exist.

Make it readable

  • Most views are on phones, where thumbnails are small.
  • Use big text, 3 words or fewer, with strong contrast.
  • Avoid the bottom-right corner; the video length covers it.

Use thumbnails fairly

  • Other people’s thumbnails are their work. Use them only for reference or with permission.
  • Do not use misleading images; YouTube can remove them.
  • Your own images stay on your device.

Questions about this tool

Why is the HD size missing?

Some older or low-quality videos do not have a 1280×720 thumbnail. Use the next size.

Can I use someone else’s thumbnail?

Only with the owner’s permission. Downloading for reference or research is common; reposting is not allowed without permission.

What size should my thumbnail be?

1280×720 pixels, 16:9, under 2 MB.

Are my images uploaded?

No. Your thumbnails are checked and previewed in your browser.

Can I A/B test thumbnails?

Yes, inside YouTube Studio with “Test & Compare”. Use this tool first to pick your best 2–3 versions.