Guide

How to Resize and Crop Images for Any Purpose

Learn the difference between resizing and cropping, common social media sizes, and how to avoid distortion.

An image resizer changes an image's dimensions; a cropper removes part of the image to focus on a subject. Both run in the browser and are essential for preparing images for the web and social media.

Resize vs. crop

Resizing scales the whole image up or down, keeping the entire frame but changing its pixel dimensions. Cropping cuts out a region of the image, discarding the edges, to change the aspect ratio or focus on a subject. Resize changes size; crop changes composition.

Common social media sizes

  • Instagram square post: 1080 × 1080.
  • Instagram story/reel: 1080 × 1920.
  • Twitter/X post image: 1200 × 675.
  • Facebook cover: 820 × 312.
  • LinkedIn banner: 1584 × 396.

How to resize or crop

  1. Upload the image.
  2. To resize: enter the target width and/or height, optionally locking the aspect ratio.
  3. To crop: drag a selection over the area you want to keep.
  4. Download the result.

Avoiding distortion

Always lock the aspect ratio when resizing unless you deliberately want to stretch — changing width and height independently squashes or stretches the image. When you need a different aspect ratio, crop instead of resize so the subject keeps its proportions.

When a resizer and cropper is useful

  • Fitting images to social media dimensions.
  • Creating thumbnails and previews.
  • Focusing on a subject by cropping out the edges.
  • Reducing pixel dimensions for faster loading.

Put it into practice

Use the Image Resizer & Cropper right now — free, in your browser, no sign-up required.

Try the Image Resizer & Cropper