원클릭툴OneClickTool

16:9 thumbnail

YouTube Thumbnail Resizer

Resize images to YouTube thumbnail ratios with 1280x720 as the default.

Drag images here or click to upload

JPG, PNG, WebP, HEIC · up to 10 files · 20MB each · paste supported

Copy an image and press Ctrl+V to paste it here

Processed in your browser · no server upload

1. Choose2. Convert3. Download

Core Options

Adjust only what you need.

Advanced Settings
Tokens

Examplesample-image.jpg

{name}=source filename, {index}=number. Leave blank to use the source filename.

Upload at least 1 image to run this tool.

Upload an image to compare the original and result here.
Uploaded files and conversion results will appear here.

Frequently Asked Questions

What is the default YouTube thumbnail size?

The default is 1280x720px at a 16:9 ratio.

Can I fill the entire 16:9 thumbnail?

Yes. Use cover mode, then check that faces and text are not cropped.

What should I check before uploading a thumbnail?

Review file size, resolution, text readability, and YouTube policy requirements.

Supported Scope

JPG, PNG, WebP, and HEIC images can be converted, compressed, resized, or prepared with presets.

RAW editing, SVG vector editing, and AI background removal are not currently supported.

  • YouTube thumbnail size
  • YouTube thumbnail resizer
  • 16:9 image maker

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