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Free Image Resizer

Resize JPG, PNG and WebP images online. Fast, private and no signup required.

Drop images here

JPG · PNG · WEBP

Change the width and height of JPG, PNG and WebP images. Set exact pixel dimensions, scale by percentage, or pick a preset — then download one image or a whole batch.

How to resize an image

  1. Drop your images onto the tool, or click Choose Images.
  2. Enter a width, a height, or both. Keep aspect ratio is on by default so images don't stretch.
  3. Or switch to percentage and scale everything by a single number.
  4. Click Resize, then download each file or get them all as a ZIP.

How the resizing works

Downscaling is done in steps with high-quality resampling, so shrinking a large photo stays clean and sharp.

Enlarging past the original size is off by default. There's no extra detail to add when you upsize, so the result always looks softer — turn on "Allow enlarging" only if you specifically need bigger pixels.

Everything happens in your browser using your device's own processing power. Your images are never uploaded to PrepImages, and nothing is stored after you close the tab.

Resize vs compress

Resizing changes the pixel dimensions. Compressing keeps the dimensions but lowers the file size by adjusting quality. They solve different problems and you can do both: resize first, then run the result through the Image Compressor.

Common uses

  • Fitting a photo to an upload limit that caps dimensions
  • Making a consistent set of thumbnails
  • Preparing product photos to a marketplace's recommended size
  • Shrinking phone photos before emailing them

Frequently asked questions

Are my images uploaded to a server?

No. Resizing runs entirely in your browser. Your images never leave your device.

Will resizing reduce image quality?

Making an image smaller uses high-quality resampling and looks clean. Enlarging beyond the original size will always look softer because there is no extra detail to add.

Can I resize many images at once?

Yes. Add multiple files, set one size, and download them individually or as a ZIP. For large batches use the Bulk Image Resizer.