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Resize Image

Make a picture the exact size you need. Type a width or height in pixels, or scale by a percentage, keep the proportions locked, and download the result in JPG, PNG or WebP.

  • Free to use
  • No sign-up
  • Runs in your browser

How to use the Resize Image

  1. Step 1: Drop a JPG, PNG or WebP image onto the upload box, or tap it to choose a file.

  2. Step 2: Choose Pixels or Percentage. With pixels, type a width or a height; the other updates to keep the proportions.

  3. Step 3: Choose the output format and, for JPG and WebP, the quality.

  4. Step 4: Press Resize image, check the preview and size, then press Download.

Features and benefits

  • Pixels or percent

    Set exact dimensions, or scale to a share of the original size.

  • Proportions locked

    Change one side and the other follows, so the picture is not squashed. Switch it off if you want a different shape.

  • Choose the format

    Keep the original, or save as JPG, PNG or WebP.

  • Before and after

    See the original and new dimensions, file sizes and a preview.

  • Private

    Your image is resized in your browser and not uploaded.

Making pictures smaller or bigger

Making a picture smaller is safe: the tool combines pixels so the result stays sharp, and the file usually shrinks a lot. Making it bigger cannot add detail that was never there, so enlarged pictures look soft. If you need a larger version of a small picture, expect some blur.

Choosing a size

For a picture shown on a web page, aim for about twice the display width so it stays crisp on high-density phones. For email, 1200 to 1600 pixels on the long side is plenty for viewing. Percentage scaling is handy when you do not care about exact numbers: 50 percent halves both width and height, giving a file roughly a quarter of the pixels.

Example use cases

  • Website images

    Make a picture the width your page needs, so it loads faster.

  • Social media

    Fit a picture to the size a platform recommends.

  • Email

    Shrink a camera photo so it is easier to send.

  • Print and documents

    Get an image to the dimensions a layout requires.

Frequently asked questions

Will resizing reduce quality?

Making an image smaller keeps it sharp. Making it larger makes it look softer because no new detail can be created.

How do I keep the proportions?

Leave Keep the proportions ticked. Changing the width will update the height automatically, and the other way round.

Can I resize to an exact file size?

Use the Compress Image to KB tool for a size limit, or the Photo and Signature Resizer for both pixels and KB.

What is the largest size I can make?

Up to 10,000 pixels on a side, within what your browser can safely handle.

Is my image uploaded?

No. Resizing happens on your device.

Related tools

Image Compressor

Reduce JPG, PNG and WebP file size in your browser. Nothing is uploaded.

Image Tools

Compress Image to KB

Shrink a JPG, PNG or WebP to a target size such as 50 KB, 100 KB or 200 KB.

Image Tools

Photo & Signature Resizer

Resize a photo or signature to exact pixels and a maximum KB for forms.

Image Tools

Useful guides

Last updated 10 November 2026.