Image Resizer

Change the width and height of an image in your browser. Enter exact pixels or a percentage, keep the aspect ratio locked, and download the resized image instantly.

Your image is resized locally in your browser. It is never uploaded to a server.

How to use Image Resizer

  1. Upload the image you want to resize.
  2. Enter a new width or height, or choose a percentage.
  3. Keep “Lock aspect ratio” on to avoid stretching, or turn it off to set both sides independently.
  4. Choose an output format if you want to convert at the same time.
  5. Download the resized image.

About this tool

Websites, email attachments, social media and print all need images at specific sizes. Uploading an oversized photo wastes bandwidth and can break page layouts.

The resizer scales your image to exactly the dimensions you set. When you reduce the size, the file size drops too. When you increase it, the tool enlarges the image — for big enlargements, expect some softness.

Frequently asked questions

What does “lock aspect ratio” mean?
With the lock on, changing the width automatically changes the height to keep the same proportions, so the image never looks stretched. Turn it off if you need exact, independent dimensions.
Will resizing reduce the file size?
Making an image smaller almost always reduces the file size. You can also export as WebP or JPEG at a lower quality setting to shrink it further.
Can I make an image bigger?
Yes, but enlarging creates pixels that were never in the original, so very large enlargements will look softer or blurry. Resizing works best when reducing an image.

Related tools

Image Compressor Reduce the file size of JPG, PNG and WebP images without losing visible quality. Image Cropper Crop images with a draggable selection and common aspect-ratio presets. JPG to WebP Convert JPG images to WebP — smaller files with the same visual quality. PNG to JPG Convert PNG images to JPG (JPEG) format for much smaller files.