Resize an image to fit pixel dimensions
Resize an image by setting a maximum width, height, or both in pixels. Keep the source format or choose PNG, JPG, WebP, or AVIF. Free to use, with no sign-up required.
Files processed on your deviceImages are decoded and re-encoded in this tab. Nothing is uploaded.
01 How it works
- Choose an image.
- Enter a target width, height, or both in pixels.
- Download the resized image.
02 Good to know
The aspect ratio is preserved and the image fits within the supplied dimensions. Leave one dimension blank to calculate it from the original proportions.
03Resize an image without stretching
Enter a target width, height, or both in pixels. When one dimension is blank, the tool calculates it from the source proportions. When both are set, the image fits within those limits without stretching.
Pixel dimensions describe the image's raster size. They do not set a physical print size or guarantee a particular file size.
04Choose an output format
Resizing redraws the image at the selected dimensions, which can change sharpness. Keep the source format or choose PNG, JPG, WebP, or AVIF under More options. The image is re-encoded, so inspect text, edges, and fine detail at the intended display size before replacing the original.
05 Questions
Can I resize using only width or height?
Yes. Leave the other field blank and the tool calculates it from the original aspect ratio.
Will the image stretch to fill both dimensions?
No. It fits within the supplied width and height while preserving its proportions.
Can I choose the resized image's format?
Yes. Under More options, keep the source format or choose PNG, JPG, WebP, or AVIF.
Does pixel resizing set print dimensions?
No. This tool changes pixel dimensions; it does not set physical print size or DPI.