Click or drag image here
JPG, PNG, WebP supported · Max recommended 25MB
Add smooth rounded corners and optional colored border to any image.
Click or drag image here
JPG, PNG, WebP supported · Max recommended 25MB
Add smooth rounded corners to any photo online for free with ResizerPhoto. Rounded corner images look modern and polished — perfect for app icons, profile pictures, website thumbnails and presentation slides.
Rounded corners give photos and graphics a softer, more modern look that's widely used in app icons, website cards, and marketing graphics, but achieving a smooth, consistent curve manually in a basic photo editor usually means working with layer masks or vector paths that aren't available in simple tools. This tool lets you apply rounded corners to any photo directly in the browser, with a corner radius you control, plus an optional colored border for extra polish, all without touching design software. For app icons and social media graphics, a corner radius of around 8-12% of the image's shortest side tends to match the rounded style used by major platforms like iOS and Android, while a larger radius creates a more playful, sticker-like appearance.
Beyond app icons, rounded corners are frequently used on website hero images, testimonial photos, and card-based layouts where a slightly softened edge helps an image feel integrated into the page design rather than sitting as a harsh rectangular block. Because you control the exact radius rather than being limited to a single preset curve, you can match the rounding style of an existing design system precisely, whether that calls for a subtle few-pixel curve or a heavily rounded, almost circular corner treatment. The optional border feature is particularly useful for images placed on busy or similarly colored backgrounds, where a thin contrasting outline helps the rounded image stand out clearly rather than blending into whatever is behind it. Since the rounding and border are both drawn using vector-style curve paths rather than a blurred or pixelated mask, the edges stay crisp and clean at any size, including when the image is later displayed larger than its original dimensions.
To round the corners, the tool draws a rounded-rectangle path onto the canvas using the same curve-drawing technique used for circles, but constrained to only the four corners of the image rather than the whole shape — each corner is replaced with a smooth quarter-circle arc whose radius matches the value you choose, while the edges and center of the image remain straight. That rounded path becomes a clipping mask, so when your photo is drawn onto the canvas, only the area inside the rounded rectangle stays visible and the four corner triangles outside the curve become transparent. If you enable a border, the tool traces the same rounded path a second time with a stroke instead of a fill, drawing a colored outline that follows the curve of the corners exactly, giving the image a clean, deliberate frame rather than a mismatched straight-edged border sitting awkwardly against curved corners.
PNG with transparent corners, so the rounded shape displays correctly on any background.
Yes. Use the radius slider — a small value gives a subtle rounding and a large value creates a more circular look.
Yes. Our tool lets you add a colored border that follows the rounded shape.
Since the output is a PNG with transparent corners, the rounded edges will blend naturally on any background color.
For a perfect circle, use our Circle Crop tool. Round Corners creates rounded rectangles with adjustable radius.
Yes, you can set your own crop dimensions in addition to the common presets offered.
Cropping itself doesn't reduce quality — you keep the original pixels for the area selected, just remove the rest.
Yes, you can upload the original image again at any time to start with a fresh crop.
Yes, this tool rounds the corners of any photo for free in your browser — set the radius high enough and it approximates a fully round look, or use the Circle Crop tool for a perfect circle.