Image Resizer

Upload one image, adjust the settings below, and download the processed result instantly.

Queue is empty 0 files queued | 0 MB total
Ready for up to 20 files. Queue builds instantly as you drop files.

How Image Resizer works

Set new width and height values for an image. Filling in one side is enough, the other follows the aspect ratio, and the output keeps the original format.

Input JPG / PNG / WebP / AVIF / GIF / BMP
Output Resized download
Works done 1,122

Image Resizer Details

Image Resizer sets the width and height of an uploaded image to the numbers you want. Fill in one side and the other is worked out from the aspect ratio.

It is the page for hitting a banner size, bringing product photos to a shared width, or pulling a 4000-pixel phone photo down to something sensible for the web.

The workflow

Opening the tool for the first time, this is the flow:

  1. Drop your images into the upload area; JPG, PNG, WebP and AVIF are accepted.
  2. Type the target into the width and height fields. Fill only one and the other follows the ratio.
  3. Use the button on a row for one file, or the batch button for the whole queue.
  4. The result keeps the source format, so save it from the download link.

Limits and processing behaviour

What the fields accept and how the processing behaves:

  • Width and height accept 1 to 4000 pixels, and leaving both empty stops the run.
  • Give one side and the other is calculated from the ratio, so nothing gets squashed.
  • Each file can reach 24 MB and the queue holds 20 files.
  • Output format matches the input: upload JPG and JPG comes back, upload PNG and PNG comes back.
  • Resampling uses a high-quality filter, and scaling down produces far cleaner results than scaling up.

When to choose this tool

Use this page when the dimensions are what needs to change. It is also where most file-size wins come from: taking a 4000-pixel photo down to 1600 pixels saves more bytes than any quality slider.

Reach for the Image Cropper when you want a region rather than the whole frame, a converter when the format is the problem, and the Image Compressor when the dimensions should stay and the file should not. Upscaling cannot invent detail, so enlarging a small image only softens it.

Small things that help

  • For social and blog covers, fix the width and leave the height empty.
  • Applying one size to many files? Type the numbers once and run the queue in a batch.
  • For high-density screens, export at twice the target size so text stays readable.
  • If you must enlarge, start from the highest-resolution source you can find rather than a shrunken copy.

Data and privacy

Your file travels over HTTPS, is processed during that single request and comes back as the download itself. It is never written to a public directory, nothing is kept once the response is sent, and the download is marked as non-cacheable.

Frequently asked questions

Upload your JPG / PNG / WebP / AVIF / GIF / BMP file, fill in the settings on screen, and start the job. The result is downloaded as Resized download.

If a required field is empty, the tool tells you. For the other fields, the default values shown inside the inputs are used.

Yes. Add up to 20 files to the queue and process them all at once with the same settings.

No. The job produces a new file and never touches the source file on your computer.