Yes. This resize tool is offered at no charge.

Do I need to sign up?

No. Use it directly on this page.

Are images uploaded to a server?

No. Resizing runs only in your browser; files are not sent to Webooro servers.

What's the difference with aspect ratio on vs off?

On: Entering one dimension auto-calculates the other so the image doesn't stretch. Off: You can set width and height independently to intentionally stretch or squash.

Can I enlarge images?

Yes, but enlarging adds pixels and can make the image look blurry. Downsizing usually preserves quality better.

Can I resize multiple images at once?

Currently one image at a time. Upload each image separately — since processing is in the browser, each operation completes in seconds.

Is the file format preserved after resizing?

Yes. PNG stays PNG, JPG stays JPG. To change format at the same time, use the Image Converter tool.

Is pixel size the same as file size?

No. Pixel dimensions (width × height) and file size (KB/MB) are different. Reducing pixel count does reduce file size, but the same pixel dimensions can produce very different file sizes depending on format (WEBP vs. PNG vs. JPG) and compression.

Free Image Resize – Set pixel dimensions

Shrink photos for the web or set a long edge for thumbnails. Keep aspect ratio on to avoid stretching. You download a new file; processing stays in your browser.

Upload Image

Drag image or click to select

PNG, JPG, WEBP supported

📋 How to Use

Upload an image.
Enter width and height in pixels. Turn Keep aspect ratio on to auto-fill the other side.
Download the resized image.

Upscaling can look soft. Processing happens in your browser.

✨ Resize vs compress

This changes pixel dimensions. Turning aspect ratio off allows non-uniform scaling (usually looks bad on photos).

Upscaling invents new pixels; it will not add real detail. For print, start from the largest source you have.

Highlights

Pixel width and height inputs.
Optional aspect ratio lock.
No server upload.

Shop image specs, blog max width, attachment size limits.

Good use cases

Camera originals too large for a website
Thumbnail long edge to 400–800 px
Match one dimension and auto-calc the other
Reduce resolution before compressing further

Pair with other tools

Resize changes dimensions; Image Compress reduces file size at similar dimensions. Image Converter changes format only.

For exact print mm/DPI, verify in print software.

❓ Frequently Asked Questions

Q. Is it really free?: Yes. This resize tool is offered at no charge.
Q. Do I need to sign up?: No. Use it directly on this page.
Q. Are images uploaded to a server?: No. Resizing runs only in your browser; files are not sent to Webooro servers.
Q. What's the difference with aspect ratio on vs off?: On: Entering one dimension auto-calculates the other so the image doesn't stretch. Off: You can set width and height independently to intentionally stretch or squash.
Q. Can I enlarge images?: Yes, but enlarging adds pixels and can make the image look blurry. Downsizing usually preserves quality better.
Q. Can I resize multiple images at once?: Currently one image at a time. Upload each image separately — since processing is in the browser, each operation completes in seconds.
Q. Is the file format preserved after resizing?: Yes. PNG stays PNG, JPG stays JPG. To change format at the same time, use the Image Converter tool.
Q. Is pixel size the same as file size?: No. Pixel dimensions (width × height) and file size (KB/MB) are different. Reducing pixel count does reduce file size, but the same pixel dimensions can produce very different file sizes depending on format (WEBP vs. PNG vs. JPG) and compression.

📐 Set dimensions and download. See the FAQ for upscaling.

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