KOEN

Image Resizer

IMAGE · RESIZE

Resize many images at once by pixels or percent, keep or unlock the aspect ratio, and download them as JPG, PNG or WebP. Everything happens in your browser.

Your files are never uploaded. Resizing and compression happen right in this browser.
  1. 01AddDrop in as many images as you like
  2. 02Size & formatWidth/height or %, JPG, PNG or WebP
  3. 03DownloadCompare sizes, then save one or all
    HOW TO

    How to use

    1. Drag and drop images or click to choose them. Multiple files work too.
    2. Under SIZE, enter a width or height in pixels, or switch to Percent to scale.
    3. Under FORMAT, pick JPG, PNG or WebP and set the quality.
    4. Check the new dimensions and file sizes, then download one by one or all at once.
    PAIRS WELL WITH

    Pairs well with

    FAQ

    FAQ

    Can I resize many photos to the same size at once?

    Yes. Add several images and enter just a width with the aspect ratio locked. Each image gets the right height for its own proportions. Buttons like 1080w fill in common widths.

    How do I resize to an exact width × height?

    Click the link button in the middle to unlock the aspect ratio and enter both width and height. If the proportions differ, the image is stretched or squeezed (not cropped).

    Can I make a small image bigger?

    Turn off “Don't enlarge beyond the original”. Keep in mind enlarging can't add detail, so the result may look soft.

    Are my images uploaded?

    No. Resizing happens entirely in your browser and your files are never sent anywhere.