YouTube Thumbnail HD Download
The highest-quality YouTube thumbnail format is maxresdefault.jpg at 1280×720. It's generated automatically for videos uploaded in 720p or above. Paste the URL, click Get Thumbnails, and pick "Max HD" — or fall back to SD (640×480) for older or lower-resolution uploads. Everything runs in your browser; no file leaves your device.
How to use
- Paste any YouTube URL or the 11-character video ID into the input field.
- Click Get Thumbnails to load all available resolutions.
- Click Download next to the size you need to save the JPG.