Resize PNG Images Without Losing Transparency

Free · No signup required · Resize up to 20 PNGs at once

Click or drag files to this area to upload

Format:png| Maximum: 20 images | Max File Size: 20 MB

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Resize PNG logos, screenshots, icons and graphics to the exact width and height you need. The transparent background stays transparent and the file stays a PNG. Resize up to 20 PNGs at once, free and with no signup.

How to Resize a PNG

  1. Upload your PNG files. Click the upload area or drag up to 20 PNGs onto it. Each can be up to 20 MB.
  2. PNG upload area
  3. Set the new size. Choose By Pixels and type a width and height, or choose By Percentage to scale the image. Keep the aspect ratio on so your logo or icon keeps its shape.
  4. By Pixels set to 512 × 512
  5. Download the PNG. The resized file downloads as a PNG, so you can use it anywhere you used the original.

What Do You Need to Do With Your PNG?

Resizing is the right tool for some PNG jobs, but not all of them. Pick your goal:

Your goalBest option
A logo or icon at an exact sizeResize here with By Pixels
A large PNG export at a smaller scaleResize here with By Percentage
A PNG under a KB or MB upload limitResize here first, then use the PNG compressor
A small PNG made bigger and still sharpThe AI upscaler for PNG
A smaller website image that keeps transparencyConvert PNG to WebP
A photo that was saved as a PNGConvert PNG to JPG
A faviconResize to 512 × 512, then convert PNG to ICO

Each of these tools is linked in the sections below.

Change PNG Size by Pixels or Percentage

Use pixels when a platform asks for an exact size: a 512 × 512 app icon, a 250 px-wide logo for an email signature, or a 1280 × 720 screenshot for a help article. Use percentage when you just need a large export smaller, such as taking a design mockup at 200% down to 100%.

PNGs often hold flat colors and hard edges, so the aspect ratio matters more than it does for photos. A circular logo stretched by a few pixels turns into an oval, and people notice. Leave the aspect ratio on unless you really want a new shape.

What Happens to Transparency When Resizing PNG

This is the main reason to use a PNG resizer instead of a general photo tool. A PNG stores transparency for every pixel, which is why a logo can sit cleanly on a colored website header or a dark slide.

When you resize, the edge pixels are recalculated. A good resize keeps them partly transparent, so curves and text stay smooth against any background. A poor one flattens the image onto white or black, leaving a hard halo around the edges. Because this tool saves the result as a PNG, the transparent areas stay transparent.

Two things to watch, especially with logos:

  • Check the result on the background you'll actually use. Thin lines and small text show edge problems first. Look at the logo on your real header color, not on white.
  • Shrinking is safer than enlarging. Making a logo smaller keeps it crisp. Making a small PNG much larger makes edges soft. For a bigger logo, export it again from the original design file, or use the AI upscaler for PNG images.

Tested: Resizing a Transparent PNG Logo

[FILL IN from your own test on the live tool. Don't publish placeholder values.]

We took a [2000 × 2000] PNG logo with a transparent background and resized it with By Pixels to the sizes people ask for most.

Output sizeFile sizeIs the background still transparent?Edges on a dark background
Original, [2000 × 2000][__ KB]n/an/a
1024 × 1024[__ KB][Yes / No][Clean / slight halo]
512 × 512[__ KB][Yes / No][Clean / slight halo]
128 × 128[__ KB][Yes / No][Clean / slight halo]

What we noticed: [1–2 sentences from the real result. For example, the size at which the logo's thin tagline became hard to read, and how much smaller the file got.]

The 512 px result on a checkerboard and on a dark background

When PNG Is the Right Format, and When It Isn't

Keep your file as a PNG when it has a transparent background, text, sharp lines or flat color: logos, icons, UI screenshots, diagrams, stickers and pixel art. Those stay sharper in PNG than in JPG.

For photos, PNG is usually the wrong choice. A resized photo saved as PNG can still be several megabytes, because PNG keeps every pixel exactly. If your PNG is a photo, convert PNG to JPG for a much smaller file. For a website image that needs transparency and a small size, convert PNG to WebP. Our comparison of PNG vs JPG vs WebP explains the trade-offs.

Common PNG Sizes

These are typical sizes for jobs where PNG is the usual format. Always check what the platform you're uploading to currently asks for.

UseTypical size (px)Tip
Website logo in the header250–400 wideExport at twice the display size so it stays sharp on high-resolution screens
Email signature logo150–300 wideKeep it small; some email apps show large images at full size
Web app icon (PWA)192 × 192 and 512 × 512Square, transparent background
App Store icon1024 × 1024Square, no rounded corners. The store adds them
Discord emoji128 × 128Transparent background reads best
Twitch emotes112 × 112, 56 × 56, 28 × 28Resize each version from the largest original
Screenshot for a help article1280–1600 wideShrinking a 4K screenshot to half size keeps text readable
Favicon source image512 × 512Then convert the PNG to ICO for the favicon file

For icon sets, always resize each size from the biggest original. Shrinking 512 to 128, and then 128 to 28, softens the detail twice.

Resizing PNG Doesn't Always Make the File Much Smaller

Smaller dimensions mean fewer pixels, so a PNG resize usually makes the file lighter. But PNG compression depends on the content. A flat-color logo can be tiny at any size, while a detailed graphic can stay large even after resizing. If an upload form gives a KB or MB limit, resize first, then use the PNG compressor to reach the limit.

Frequently Asked Questions

Shrinking a PNG keeps it sharp at its new size, because PNG saves every pixel without lossy compression. The only detail you lose is what can't fit in fewer pixels, like hairline strokes that become too thin. Enlarging is different: a small PNG blown up past about twice its size will look soft. Why this happens is covered in does resizing an image reduce quality.