Change PNG size

Resizing a PNG loses nothing. The file is written fresh from the resized pixels with no detail discarded, so you can resize the same PNG as many times as you like without the generational quality loss a JPG suffers.

Leave the aspect-ratio lock switched on and change only one dimension — the other follows automatically. Stretching happens when the width and the height are changed by different amounts, which the lock makes impossible.

Match the size it will actually be displayed at, then double it if you are targeting high-density phone screens. A full-width banner is usually 1600 to 2000 pixels wide; anything inside a column rarely needs more than 800. Sending a 4000-pixel image to a 400-pixel slot wastes your visitor's data and nothing else.

Not really. Enlarging cannot add detail that was never captured, so an upscaled picture always looks softer than the original. Start from the largest copy of the image you have rather than growing a small one.

Resizing changes how many pixels the picture has. Compressing changes how many bytes those pixels take to store. Resizing to smaller dimensions also cuts the file size, and doing both — resize first, then compress — gives the smallest result that still looks right.

Yes. Your file is processed on our server and deleted automatically within one hour. We never look at it and you do not need an account.