Free online tool

Resize Images Online for Free

Resize JPG, PNG and WebP images to exact dimensions or a percentage. Keep the original aspect ratio, choose fit or fill, and review the resulting dimensions before downloading.

Image Resizer
JPG, PNG, WebP · Local browser processing
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Up to 20 files · 50 MB per file · 150 MB per batch
Files are processed in your browser for this tool. Original files are not uploaded to CODAC.

How to use Image Resizer

  1. Upload one or more images.
  2. Enter a width, height or resize percentage.
  3. Choose whether to fit or fill the target area.
  4. Resize and download the output files.

Supported file formats

This tool accepts JPG, PNG, WebP. Files are checked by reading their signatures in addition to checking their names. Individual files are limited to 50 MB and a batch can contain up to 20 files with a combined size of 150 MB.

Important limitations

Results depend on the source image, browser capabilities and selected settings. CODAC measures generated output files and verifies that they can be read. Image re-encoding may change metadata, color handling or image quality. Keep your original files if you need their original metadata or exact pixel data.

Frequently asked questions

Useful details before you process your files.

Will the image be stretched?

No. Maintain aspect ratio is enabled by default. Turn it off only when you explicitly want independent width and height scaling.

What is the difference between fit and fill?

Fit keeps the entire image visible inside the requested dimensions. Fill covers the requested area and crops overflow from the center.

Can I resize several images together?

Yes. The same resize settings are applied to every selected image.

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