Resize a PNG
Scale logos, icons and screenshots to exact pixels and keep the transparent background.
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How it works
Add your images
Drag and drop, paste, or pick files. They upload over an encrypted connection.
Pick a quality or a target size
Use the quality slider, or tell it exactly how many KB or MB you need.
Download
Save each file, or grab them all at once as a ZIP.
A resized PNG stays a PNG here, with its transparency. The page opens at a quality setting where the output is lossless, so the only change to your picture is the scaling itself; nothing is blurred or blotched by compression afterwards. Soft edges, shadows and partly transparent pixels are scaled together with the colours and blend into any background as before.
Enter the new width or height in pixels, or a percentage. Leave one side empty and the proportions are kept. When you give both and the shape differs, Fit and pad places the picture inside the frame and leaves the remaining area transparent, which is how a logo gets onto a square canvas without being cropped.
Twenty files can be resized at once without an account, each to the same setting, and downloaded as a ZIP. PNG files are sent over an encrypted connection, resized on our own servers and removed within one hour.
Screenshots and text: prefer whole-number scales
A screenshot is made of hard one-pixel edges: letters, lines, the borders of buttons. Scale it by an awkward factor such as 73 percent and every one of those edges lands between pixels and is smeared across two. The text is still readable but looks soft, as if slightly out of focus.
Scale by exactly 50 percent and the result is far cleaner, because each new pixel is the average of a tidy block of four. Screenshots from high-density displays are a special case in your favour. They are captured at twice the size they appear on screen, so reducing one to 50 percent returns it to its natural size with crisp text and a quarter of the file.
A set of icon sizes from one master
App icons, favicons and store listings all ask for the same picture at different sizes: 1024 and 512 for stores, 192 and 180 for phone home screens, 48, 32 and 16 for browser tabs and toolbars. Always start from the largest master you have and make each size directly from it. Reducing step by step, from 512 to 256 to 128, averages the picture again each time and softens it more than one direct step does.
At 32 pixels and below, automatic scaling reaches its limits. Thin strokes fade to grey and small counters fill in. Designers redraw icons for those sizes; if that is not an option, pick a simpler version of the mark for them.
Pixel art needs a different kind of scaling
The resizing here is the smooth kind, right for photographs, logos and interface graphics. For pixel art it is wrong. A 32 by 32 sprite enlarged to 320 comes out as a blur, where what you wanted was every original pixel turned into a sharp 10 by 10 block. That takes nearest-neighbour scaling, which this tool does not offer. Use a pixel-art editor or the export function of the program the sprite was drawn in.
Frequently asked questions
Is transparency kept when I resize a PNG?
Yes. The alpha channel is scaled with the picture, including soft edges and shadows, and the output stays PNG.
Is the resized PNG lossless?
At this page's starting quality of 90, yes: the scaled pixels are stored exactly. Below 90 the colours are reduced to a palette to save space.
Why is my resized PNG still a large file?
Lossless storage is expensive for photographic content. Lower the quality below 90 for graphics, or save photos as WebP or JPG.
Can I put a logo on a square canvas without cropping it?
Yes. Enter the same width and height and set the fit to Fit and pad. The logo is centred and the space around it stays transparent.
Can I enlarge a small PNG logo?
Enlarging stretches the pixels and softens the edges. If a vector version of the logo exists, convert that to PNG at the size you need instead.
Does resizing change the colours?
No. Colours are kept as they are. Along edges, neighbouring colours are blended, which is what makes a scaled outline look smooth and not jagged.