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Preview of YouTube Thumbnail Downloader

YouTube Thumbnail Downloader by Ryan Aby

Adds a clean hover button on YouTube thumbnails to view, download, or copy the full-resolution image (maxresdefault.jpg). Works on channel pages, search, and video pages.

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About this extension
YouTube Thumbnail Downloader is a simple extension that lets you grab the full-resolution thumbnail of any YouTube video—effortlessly.

Just hover over a video thumbnail and a small button will appear. You can choose to:

View the high-res image in a new tab

Download it directly as a JPG

Or copy the image itself to your clipboard (not just the URL)


It works on the homepage, search results, channel pages, and even inside the video player.

There’s no clutter, no tracking, and no background scripts running. It’s just a clean, helpful tool for creators, designers, or anyone who wants a better look at YouTube thumbnails.
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Permissions and dataLearn more

Required permissions:

  • Input data to the clipboard
  • Access your data for www.youtube.com

Optional permissions:

  • Access your data for i3.ytimg.com
  • Access your data for www.youtube.com
More information
Version
1.1.0
Size
30.52 kB
Last updated
16 days ago (26 Jul 2025)
Version History
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Release notes for 1.1.0
Improved UI feedback: download/copy buttons give visual cues when clicked
Fixed issue where buttons sometimes pointed to the wrong thumbnail on channel tabs (like "Popular")
Refactored code for better stability and cleaner logic
Updated manifest and permissions for Manifest V3 compatibility

Let us know if you have feature ideas or run into bugs!
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