Upscale a PNG Image
Enlarge PNG dimensions with anti-aliased bilinear resampling to smooth pixelation. Runs entirely in your browser, so your data never leaves your device.
Drop a file here, or click to browse
Files never leave your device
Output
The result appears here as you type.
How to use Upscale a PNG Image
- 1. Add the PNG to enlarge. Drop or browse for the small PNG you want to make bigger. Icons, sprites and thumbnails are the usual candidates when the original was saved at a lower resolution than you now need.
- 2. Set the Scale factor (x). This multiplies both the width and height. A factor of 2 doubles the dimensions, a factor of 4 quadruples them, with bilinear resampling smoothing the new pixels so edges don't look blocky.
- 3. Download the enlarged image. The output keeps the same proportions and colors as the original at the new, larger size, ready to drop into a print layout, mockup or higher-resolution display.
When to use Upscale a PNG Image
Upscale a PNG Image enlarges a picture's dimensions while smoothing the result with bilinear resampling instead of leaving hard pixel blocks. It helps whenever an image was saved smaller than the space it now needs to fill.
- Enlarging an icon for a print mockup. A small app icon exported at 128 pixels needs to sit large in a poster mockup. Upscaling it at a high scale factor gets it to size without the jagged edges of a raw stretch.
- Preparing a sprite for a high-resolution display. An old game sprite was drawn for a low-resolution screen and now needs to look reasonable on a modern high-density display. Upscaling smooths the transition rather than leaving hard blocks.
- Enlarging a thumbnail before adding text. A thumbnail image is too small to comfortably overlay a title and caption. Upscaling it first gives enough canvas room for text without the image looking stretched underneath.
- Bringing up an old scanned image. A scanned photo from years ago is smaller than what a current project needs. Upscaling it to a larger size buys enough resolution to continue editing before final output.
Examples
Double the size
Input
icon.png (400×300) + factor 2
Output
icon.png at 800×600
About the Upscale a PNG Image tool
Upscale a PNG Image runs as plain JavaScript in your browser tab, with no server behind it. Enlarge PNG dimensions with anti-aliased bilinear resampling to smooth pixelation. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's PNG Tools section, 108 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with the Scale factor (×) setting, and the result refreshes the moment you change it. The finished file is put together in browser memory and saved with the Download button, so it never touches a server on the way to your disk. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Does Upscale a PNG Image cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Are my files uploaded to a server?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
Which files does Upscale a PNG Image accept?
It accepts PNG images. There is no file size cap imposed by a server; very large files are limited only by your device's memory.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I save the output?
Click the Download button once the result is ready. The file is built in your browser's memory and handed straight to your downloads folder, without passing through a server.