Image Resizer

Resize an image to exact dimensions.

Resize an image to a target width and height, with an optional locked aspect ratio, entirely in your browser.

How it works

The image is redrawn onto a canvas at the width and height you enter. With the aspect ratio locked, changing one side automatically adjusts the other so the image isn't stretched.

When it helps

Useful for profile pictures, website images, social posts or form uploads with size limits.

Common sizes

Many platforms recommend specific dimensions: around 1080 × 1080 px for a square social post, 1200 × 630 px for link preview images, 1920 × 1080 px for full-HD backgrounds, and 400 × 400 px or similar for profile pictures. Online forms often ask for photos within certain pixel limits too.

Keep the aspect ratio locked when you only need a smaller version of the same picture. Unlock it only when you need exact dimensions — and expect some stretching if the new shape differs from the original.

Resize before you share

Modern phone cameras produce photos around 4,000 pixels wide, much larger than any screen needs. Shrinking a photo to 1,600 px wide cuts its file size dramatically while still looking sharp on most devices.

If you need a different shape — like a square from a landscape photo — crop it first in a photo editor, then resize, to avoid distortion.

Frequently asked questions

Will enlarging an image add detail?

No. Upscaling makes it bigger but can look blurry, since no new detail is created.

Is my image uploaded?

No. Resizing happens entirely in your browser.

Which format is the resized image saved in?

The same format as the original where your browser supports it, such as JPEG, PNG or WebP. For the smallest photo files, run the result through the Image Compressor.

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