Free Online Image Rounded Corner Tool
Round image corners and export a transparent PNG.
Corners outside the rounded shape are transparent. The export is always PNG so the transparency survives.
The image keeps its exact pixel dimensions. Only the corners are cut away, which makes the file perfect for profile pictures, app icons, cards, and rounded thumbnails.
About the Image Rounded Corner Tool
Square corners are the default for almost every camera and screenshot, but modern interfaces rarely use them. Cards, avatars, app icons, product tiles, and story templates all soften their edges. This tool rounds the corners of any image and saves the result as a PNG with genuinely transparent corners, so the shape drops cleanly onto any background color, gradient, or photograph. Upload a JPG, PNG, or WebP file, drag the radius slider, and watch the preview update instantly.
Pixels or percent
Pixel mode gives you an exact radius, which is the right choice when the image must match a design system or a
CSS border-radius value. Percent mode is relative to the shorter side of the picture, so the same
setting produces a visually similar curve on a small avatar and a large banner. Fifty percent is the maximum,
and it turns a square image into a circle. A radius of zero simply returns the original rectangle.
Linking and unlinking corners
With Link all four corners enabled, one slider controls the whole shape. Turn linking off to reveal four separate fields. That is useful for speech bubbles, tickets, folded labels, and other designs where one corner should stay sharp while the rest are rounded. Each field is clamped to half of the shorter side, so the shape can never fold over itself.
Why PNG matters
JPG cannot store transparency. Saving a rounded JPG would leave white or black wedges where the corners were removed. PNG keeps an alpha channel, so the cut-away area is truly empty and picks up whatever sits behind it. For the same reason, do not convert the downloaded PNG to JPG if you need the rounded shape to stay clean on a colored page.
Frequently asked questions
Will the image be cropped or resized?
No. The canvas is exactly the same width and height as the source. Only pixels outside the rounded outline become transparent; the visible picture is unchanged.
What radius should I use for a profile picture?
Fifty percent of the shorter side produces a perfect circle. For a softer card look, try 8 to 12 percent, or roughly 24 to 48 pixels on a typical 1080-pixel image.
Can I use the result on a dark background?
Yes. Because the corners are transparent rather than white, the PNG blends correctly over light, dark, or patterned backgrounds.