Round Corners

Open in Editor

Add rounded corners to your image by making pixels outside the rounded rectangle transparent.

How to use Round Corners

  1. Upload your image using drag & drop or click to browse.
  2. Adjust the settings using the controls above.
  3. See the result instantly — processing happens in your browser.
  4. Download your processed image as a PNG file.

About Round Corners

Add rounded corners to your image by making pixels outside the rounded rectangle transparent. This tool is part of ImageToolbox's collection of free online image tools. It runs entirely in your browser — your images are never uploaded to our servers.