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UUTOOLS.NET

Image Resizer

Change an image's width and height in pixels or by percentage, keeping the proportions if you like.

or drag and drop here, or paste with Ctrl+V / ⌘V

Accepted: JPG, PNG, WebP, HEIC, SVG, AVIF, GIF, BMP, ICO, TIFF

Convert on our server?

If you continue, the file is uploaded over an encrypted connection and converted on our server. You can keep using the site meanwhile. The original is deleted as soon as it is converted; the result is kept for 7 days so you can download it, and you can delete it at any time. Files are never shared or used for anything else.

Your images are processed in your browser and are not uploaded. If a file is too large for your browser or in a format it can’t handle, we ask before converting it on our server. The original is deleted right after conversion; the result is kept for 7 days for you to download, unless you delete it sooner. Privacy details

How to use: Image Resizer

  1. 1 Choose or drag in an image.
  2. 2 Enter the new width or height in pixels, or switch to percentage.
  3. 3 Keep “Keep aspect ratio” ticked to avoid stretching the image.
  4. 4 Pick the output format and quality, then press “Resize image”.
  5. 5 Check the result and download it.

About this tool

Resizing changes the number of pixels in an image. Making an image smaller reduces its file size and is often required by websites, profile pictures, online forms and marketplaces. The resizer uses high-quality downscaling, so reduced images stay sharp.

You can also enlarge images, but enlarging can't add detail that isn't there, so large increases will look soft.

To change the shape of an image without stretching it, crop it instead with the Image Cropper.

Images are resized in your browser and are not uploaded.

Frequently asked questions

How do I resize without stretching the image?

Keep “Keep aspect ratio” ticked. When you change the width, the height is calculated automatically (and the other way round), so the proportions stay the same.

What size should I use for the web?

For full-width images on a website, 1600–2000 pixels wide is usually plenty. For images in an article column, 800–1200 pixels is typical. Profile pictures are often 400×400 pixels or smaller.

Does resizing reduce the file size?

Yes. Halving the width and height leaves a quarter of the pixels, and the file size usually drops by a similar amount. Use the Image Compressor for further savings.

What is the largest image I can resize?

That depends on your device. Most computers handle images of 40–60 megapixels; iPhones and iPads are limited to about 16 megapixels by Safari. The tool tells you if an image is too large for your browser.

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