Round Corners
Turn sharp corners into smooth rounded ones, with an optional border. Runs entirely on your device.
Frequently asked questions
Why is the output always PNG?
Rounded corners work by making the area outside the shape transparent, and JPG doesn’t support transparency. PNG is the only common format that can represent it correctly.
Can I make a fully circular image?
Yes — set the corner radius to 50% on a square image and it becomes a circle.
Can I add a colored border along with rounded corners?
Yes, the border width and color controls apply a stroke that follows the same rounded shape as the corners.