YouTube Thumbnail
Resizer
Resize your YouTube thumbnails quickly and easily. Choose a recommended size or enter custom dimensions and download your resized image.
Resize YouTube Thumbnail
Upload an image, choose your preferred size, and download the resized thumbnail.
Resized Thumbnail
YouTube Thumbnail Resizer
YouTubeToolly's free YouTube Thumbnail Resizer makes it easy to resize your images for YouTube videos. Upload your image, choose a recommended size or enter custom dimensions, and download the resized thumbnail instantly.
The tool works directly in your browser, so you can resize thumbnails without installing image editing software.
What is the recommended YouTube thumbnail size?
A commonly recommended YouTube thumbnail size is 1280 × 720 pixels with a 16:9 aspect ratio. This gives creators a high-quality thumbnail suitable for YouTube video pages and different screen sizes.
- Width: 1280 pixels
- Height: 720 pixels
- Aspect ratio: 16:9
- Common formats: JPG and PNG
How to Resize a YouTube Thumbnail
Resizing your thumbnail takes only a few simple steps:
- Upload your JPG, PNG, or WebP image.
- Preview the image immediately after selecting it.
- Choose a recommended thumbnail size.
- Or enter your own custom width and height.
- Choose JPG or PNG as the output format.
- Click "Resize Thumbnail".
- Preview and download your resized image.
Can I use a custom thumbnail size?
Yes. You can enter any width and height between 1 and 5000 pixels. If the aspect ratio option is enabled, the tool automatically maintains the original image ratio.
Does the tool upload my image?
No. Your image is processed directly inside your browser using JavaScript and the Canvas API. The image does not need to be uploaded to a server.
Is the YouTube Thumbnail Resizer free?
Yes. YouTubeToolly's thumbnail resizer is free to use and does not require registration or software installation.
Free YouTube Creator Tools
YouTubeToolly provides a growing collection of free tools for YouTube creators, including thumbnail tools, title generators, tag generators, hashtag tools, description tools and content idea generators.
Frequently Asked Questions
What size should a YouTube thumbnail be?
1280 × 720 pixels with a 16:9 aspect ratio is a commonly recommended size for YouTube thumbnails.
Can I resize a thumbnail to 1280 × 720?
Yes. Select the 1280 × 720 preset and click "Resize Thumbnail".
Can I preview my image before resizing it?
Yes. The original image is displayed immediately after you select it.
Can I enter custom dimensions?
Yes. You can enter your preferred width and height using the custom dimension fields.
Can I keep the original aspect ratio?
Yes. Enable "Keep original aspect ratio" and the tool will automatically calculate the corresponding dimension.
Which image formats are supported?
The tool accepts JPG, PNG and WebP images and lets you download the result as JPG or PNG.
Are my images uploaded to a server?
No. The image is processed directly in your browser. The tool does not require your image to be uploaded to a server for resizing.
Does the tool work on mobile devices?
Yes. The YouTube Thumbnail Resizer works in modern mobile and desktop browsers.