YouTube Thumbnail Resizer
Generate crisp 1280 × 720 px (16:9) video thumbnails that meet YouTube upload guidelines under 2 MB.
In-Browser Processing: Your files stay on your device. They are not uploaded to our servers.
Drop your image here
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Supports JPG, PNG, and WebP up to 25 MB • Your files stay on your device
Official YouTube Custom Thumbnail Specifications
YouTube officially recommends:
• Resolution: 1280 × 720 pixels (minimum width: 640 pixels)
• Aspect Ratio: 16:9 widescreen
• Formats: JPG, PNG, GIF, or WebP
• Max File Size: Under 2 MB for video uploads
Frequently Asked Questions
YouTube permits thumbnail images up to 2 MB in file size.