YouTube Tools

YouTube Thumbnail Resizer & Compressor

Create current 16:9 YouTube thumbnail sizes and automatically reduce JPG quality when needed to target the 2MB mobile upload limit.

Free No account Local processing

Drop an image here

or click to choose PNG, JPG, or WebP

Images stay on your device

Output controls

Generated presets

  • 3840×2160 official recommended · mobile-safe target
  • 1280×720 compact 16:9 · mobile-safe target

Practical tips

  • ✓YouTube currently recommends 3840×2160 with a minimum width of 640 pixels and a 16:9 ratio.
  • ✓Mobile video-thumbnail uploads must stay under 2MB; desktop uploads currently allow up to 50MB. This exporter uses the stricter mobile-safe target.

How to use YouTube Thumbnail Resizer & Compressor

  1. 1

    Upload the image you want to process with YouTube Thumbnail Resizer & Compressor.

  2. 2

    Choose a crop mode and adjust the focal point when the source aspect ratio is different.

  3. 3

    Review every generated size and its final file size in the browser.

  4. 4

    Download one result or save the complete preset pack as a ZIP file.

Frequently asked questions

Is YouTube Thumbnail Resizer & Compressor free?

Yes. The tool runs in your browser and does not require an account.

Are uploaded images stored?

No. Image resizing and export happen locally in your browser.

Which format does this YouTube tool export?

The default export is JPG, selected for compatibility with this asset type.

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