ITImage Toolkit

Image Toolkit

Image Resizer

Resize images to the width and height you need.

Files are processed in your browser and are not uploaded to a server.

Upload images

Click or drop files here

Large images may slow down your browser.

Files are processed in your browser whenever possible and are not stored on a server.

Common sizes

Platform recommendations can change, so these presets are common sizes that are widely used.

JPG does not support transparent backgrounds. Transparent areas are filled with the selected background color. PNG quality settings are limited.

Original Preview

Upload an image to see the preview.

Result Preview

Adjust the options and check the result before downloading.

Resized results

Resize images to see results.

Resize your image first, then compress it to reduce the final file size.

How to use

  1. 1.Upload one or more JPG, PNG, or WebP images.
  2. 2.Set width and height, keep aspect ratio, choose a percentage, or apply a common preset.
  3. 3.Choose output format, quality, and JPG background color, then run resizing.
  4. 4.Preview the result and download individual files or a ZIP.

Cautions

  1. 1.You can preview the result before downloading.
  2. 2.Enlarging a small image may reduce visual quality.
  3. 3.JPG does not support transparent backgrounds and fills them with the selected background color.
  4. 4.Large images or many files may take longer depending on browser performance.

FAQ

Are images uploaded to a server?

No. Images are processed in your browser whenever possible and are not stored on a server.

What does keep aspect ratio mean?

It keeps the original width/height ratio so the image is not stretched.

Which output format should I choose?

JPG is good for photos, PNG for transparent graphics, and WebP for web optimization.

Does enlarging a small image improve quality?

No. Resizing cannot create missing detail, so enlarging may reduce visual quality.

Can I resize multiple images at once?

Yes. Upload multiple images, process them in batch, and download a ZIP.

What happens when I save a transparent image as JPG?

JPG does not support transparency, so transparent areas are filled with the selected background color.

Can I choose sizes for social media or shops?

The presets are commonly used sizes. Platform recommendations can change.

Can I preview before downloading?

You can preview the result before downloading.

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