Resize Images Online

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Drop image to resize

Supports PNG, JPG, SVG, and WebP

0 images selected Apply one size to every image

Settings

Set preset or custom dimensions

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Resize images in your browser

Resize one image or process multiple images with shared dimensions, output format, and quality settings.

How to resize an image

  1. Choose one or more images from your device.
  2. Set dimensions, output format, and quality.
  3. Download one result or a ZIP file for batch processing.

Resize JPG, PNG and WebP images

Enter the width and height in pixels, or start with a size preset. The output can be PNG, JPG or WebP. PNG is useful for transparent graphics; JPG and WebP offer quality controls. Changing pixel dimensions is different from reducing file size, so check both the preview and the downloaded result.

Resize multiple images to shared dimensions

Switch to batch mode to add several images and apply one width, height and output format to the set. Results can be downloaded together as a ZIP. Every image receives the same output dimensions: if the originals have different proportions, crop them to a common ratio first or resize them individually to avoid stretching.

Keep proportions while working locally

For a single image, keep the aspect-ratio option enabled so changing one dimension updates the other. Enlarging a small image cannot restore missing detail. Resizing runs on your device without sending the selected file to IMGIUM's servers; save the result before closing or reloading the page.

Image resizing questions

Can I resize multiple images at once?

Yes. You can apply the same settings to multiple images and download the results as a ZIP file.

Can I keep the original proportions?

Yes. Turn on Keep aspect ratio before changing the dimensions.

Are images uploaded to a server?

No. Selected images are processed in your browser and are not uploaded to IMGIUM's own servers.

Does resizing reduce image quality?

Reducing dimensions removes pixels, while enlarging can make an image look soft. JPG and WebP quality settings also affect the result. Keep the original file if you may need a larger version later.

Will every batch image keep its own aspect ratio?

Batch mode applies the same width and height to every image. Images with different original ratios may stretch; use a set with matching proportions or process them separately.

Prepare images for the next step

Crop away unwanted edges before resizing, compress a result for a smaller download, or convert it when a different file format is required.