Question 1

How do I round the corners of an image?

Accepted Answer

Upload your image, then drag the Corner Radius slider. The preview updates instantly. When you are happy, download the result as PNG (transparent corners) or JPG (filled background).

Question 2

Can I make an image a perfect circle?

Accepted Answer

Yes. Drag the radius slider all the way to the right, or click the Circle button to set the radius to its maximum (half of the shorter side). This turns any rectangular photo into a circle or pill shape.

Question 3

Does rounding the corners keep transparency?

Accepted Answer

When you download as PNG, the rounded-away corners are transparent. When you download as JPG, the corners are filled with the background color you pick, because JPG does not support transparency.

Question 4

Is my image uploaded to a server?

Accepted Answer

No. The corner rounding is drawn locally in your browser using the HTML canvas. Your image never leaves your device.