Rounded Image Corners Tool
Round the corners of an image by a chosen radius, clamped to what fits.
Quick answer: enter your details below and click Round corners — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
R
Image & Design
Enter your details below.
How to use
- Enter the image size and corner radius
- Check the radius actually used
- Download the rounded preview
About this tool
The tool limits the radius to half the shorter side, so a very large radius becomes a pill or circle shape instead of breaking the image. In the browser the result is drawn with clipped rounded corners on a canvas and can be downloaded as a PNG. The preview uses a plain gradient because your own photo is not uploaded here.
Frequently asked questions
What happens if the radius is too large?
It is clamped to half the shorter side, so the shape stays valid instead of folding in on itself.
Does rounding change the file type?
The download is a PNG, which keeps the transparent corners instead of filling them with white.