About this tool
What Image Resizer does
Resize one or many images to exact pixel dimensions.
Resizing changes pixel dimensions, not just how large an image appears in CSS. Downscaling usually reduces file size as well.
Image Resizer
Resize one or many images to exact pixel dimensions.
Runs on your device Batch No signup
Local workspace · Images stay in this tab
NO UPLOAD
JPG · PNG · WebPUp to 40 MB locallyNo account required
How it works
- 01
Open the original image
Add an image and note its original width, height and aspect ratio.
- 02
Enter the required dimensions
Set the output width and height. Keep the aspect ratio linked to avoid stretching, or unlock it for an exact specification.
- 03
Export at the new size
Check the calculated dimensions and download the resized image in the format you need.
Tips for better results
- Resize from the largest available original.
- Keep aspect ratio on unless exact dimensions are mandatory.
- Use cropping when the destination ratio differs.
- Processing stays in the current browser tab; download the result before closing it.
FAQ
How do I use Image Resizer? +
Add an image and note its original width, height and aspect ratio. Set the output width and height. Keep the aspect ratio linked to avoid stretching, or unlock it for an exact specification. Check the calculated dimensions and download the resized image in the format you need.
Will resizing distort my image? +
Not while Keep aspect ratio is enabled. If you unlock width and height, the image is scaled to those exact values and can appear stretched.
What inputs and outputs does Image Resizer support? +
You can start with JPG, PNG, WebP and export JPG, PNG, WebP. Actual decoding support can vary slightly by browser.
Does Image Resizer upload my image? +
Image Resizer runs in your browser. Your image is not uploaded to Image Toolkit.
Do I need an account for Image Resizer? +
No. You can use this tool without creating an account.