Free online image tool

Image Resizer

Set exact pixel dimensions for profile photos, web graphics, and social posts. Lock the aspect ratio to avoid stretching, or choose a ready-made size preset.

Your images are processed locally in your browser and are not uploaded to our server.

Use the Image Resizer

Files stay on this device. Nothing is uploaded.

Local processing

How to use Image Resizer

  1. Add an image from your device.
  2. Enter a width and height, or pick a preset size.
  3. Keep proportions locked if desired, then resize and download.

Why use this image resizer?

Resize images online by entering a width and height or choosing a popular preset. Keep the original aspect ratio and download the resized image privately. Image Toolbox is designed for quick one-off edits as well as everyday image workflows. There is nothing to install, and the controls are made to work on both desktop and mobile screens.

  • Precise pixel dimensions with original size shown.
  • Aspect-ratio lock helps prevent distortion.
  • Common landscape and square presets are ready to use.

Frequently asked questions

Will resizing stretch my image?

The aspect-ratio option is enabled by default. When it is on, changing one dimension updates the other proportionally.

Can I enlarge a small image?

Yes, but enlarging cannot add original detail and may make the result look softer.

Which image formats are supported?

You can resize JPG, JPEG, PNG, and WEBP images. The output keeps the original format where supported.