Add Transparent PNG Corners
Round the edges of an image and render the newly carved negative space transparent. 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 Add Transparent PNG Corners
- 1. Upload the PNG to round. Add the PNG whose sharp corners you want carved away. The tool masks out the corner regions and replaces them with transparency.
- 2. Set the corner radius. Enter Corner radius in pixels to control how rounded the edges become. A small radius gives a subtle rounding while a large radius approaches a fully circular or pill shape.
- 3. Download the rounded PNG. Download the file once the preview shows clean, transparent rounded corners. Increase the radius if the corners still look too sharp for the intended layout.
When to use Add Transparent PNG Corners
Add Transparent PNG Corners rounds the edges of a square or rectangular image and makes the carved-away corner space transparent, matching the rounded-square look common across modern app icons and interfaces.
- Rounding a profile avatar. A user avatar uploaded as a plain square photo needs rounded corners to match a chat app or forum's circular or squircle avatar frames.
- Matching an app icon's platform style. An icon designed as a flat square needs its corners rounded to match the platform's standard rounded-square icon shape before submission to an app store.
- Softening a card thumbnail image. A thumbnail used inside a rounded card component looks out of place with hard square corners peeking past the card's own curve. Rounding the image corners fixes the mismatch.
Examples
Rounded avatar
Input
avatar.png + 24px radius
Output
avatar.png with rounded, transparent corners
About the Add Transparent PNG Corners tool
Add Transparent PNG Corners does its work locally, right in the browser. Round the edges of an image and render the newly carved negative space transparent. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the PNG Tools collection on EditSafely, a set of 108 small, focused PNG utilities that share the same instant, private workspace.
You can shape the output with the Corner radius (px) 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.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
Frequently asked questions
Does Add Transparent PNG Corners 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 Add Transparent PNG Corners 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.