How to use Round Corners and Circle Crop
- Choose one JPEG, PNG or WebP image.
- Set Shape to a rounded rectangle or a circle, and set the corner radius when you use the rectangle.
- Leave the output on PNG or WebP to keep the outside transparent, or pick JPEG if you need a smaller file and can accept a white outside.
- Select Round, check the preview, then download the file.
Example: Round Corners and Circle Crop
Round the corners of a square PNG and keep the outside transparent.
Options
- Shape
- A rounded rectangle keeps the picture's own proportions. A circle is drawn to fill the frame, so a photo that is not square comes out as an ellipse rather than a true circle.
- Corner radius
- Measured against the shorter side, so one setting looks the same on a wide photo and a tall one. At 50% a square becomes a circle and a rectangle becomes a stadium shape with two straight sides.
- Output format
- PNG and WebP store the mask as real transparency. JPEG has no transparency, so the outside is filled with white and the result says so.
Supported inputs and limits
Where your input is processed
This tool processes your input in this browser. Your text and files are not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.
What a mask does to the pixels
The mask is a clip path drawn over the picture, so every pixel outside it keeps an alpha value of zero. A viewer that has a plain background then shows that background through the corners. Where the shape edge crosses the picture, the browser blends the last row of pixels, which is why a rounded edge looks smooth rather than stepped.
Choosing a radius that suits the picture
A small radius, around 5 to 15 percent of the shorter side, reads as a soft corner on a photo. Near 50 percent the straight edges disappear and the shape becomes a circle or an oval. The frame size never changes, so a 1000 by 1000 square stays 1000 by 1000 whatever the radius.
Questions about Round Corners and Circle Crop
Why is the circle on my photo an ellipse?
A circle needs a square frame. A wider or taller photo is masked to an ellipse that fills it, which keeps the whole picture. Crop to a square first if the result has to be a true circle.
Why did my rounded corners come out white on the outside?
The output was set to JPEG. JPEG cannot store transparency, so the area outside the mask is filled with white before encoding. Choose PNG or WebP to keep it see-through.
Does the file get smaller because the corners are gone?
Usually very little, and it can grow. Only the corner pixels are removed, and the picture is encoded again. The result reports the real output size, so check it before you replace the original.
Can I round the corners of several photos at once?
No, this page takes one image per run so you can see the mask on the picture it will change. Run the next photo with the same settings; they stay as you left them.
Is this the same as cropping?
No. Cropping removes a rectangle and returns a smaller picture. This keeps the full frame and makes the pixels outside the shape transparent, which is what a round avatar or a badge needs.