Crop it or pad it? See exactly what each choice costs.

Type your image size and the ratio you need. Everything is computed in your browser, nothing is uploaded.

Width px

Height px

Preview your photo (optional)

Target ratio

Custom W

Custom H

Slide the crop window

Exact export sizes at this ratio

Size	Pixels	Compared with your original

All figures are plain arithmetic on the numbers you type: ratio = width / height, the greatest common divisor reduces it, and a crop or pad keeps the other dimension unchanged so no pixels are resampled.