Image Tools

Rounded Corners

Round any or all image corners with a radius slider and exact input. Keep transparent corners or add a background, then download a new image without uploading your photo.

Your content stays on your device Free, with no account
Softer corners. Your image, unchanged inside. Local processing · no uploads

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Static PNG, JPEG or WebP · up to 20 MiB and 40 MP input. Working image fits within 2,400 px per side and 4 MP; download uses these working dimensions.

0% keeps square corners. 50% creates a circle on square images, or a pill shape on rectangular images.
Round these corners
Used for JPEG or when transparent corners are disabled.

Adjust a slider or enter an exact value, select the corners, then click Round corners. Each result starts from the original working image. The image is not cropped or stretched.

YOUR ROUNDED IMAGE

Your rounded image appears here.

Ready. Choose an image.

PNG and WebP keep transparency when enabled. JPEG always uses the selected background. Transparent source pixels also use that color when background filling is enabled. Original EXIF and GPS metadata are not copied; browser orientation and color handling applies. Output is limited to 32 MiB.

Planning your image dimensions? Use the Aspect Ratio Calculator.

A FEW SIMPLE STEPS

How to use Rounded Corners

  1. Choose a static PNG, JPEG or WebP image and review the original and working dimensions.
  2. Adjust the radius slider or exact percentage. Toggle the corners you want to round.
  3. Choose transparent corners for PNG/WebP, or a background color. JPEG always uses a background.
  4. Click Round corners, review the result, and download PNG, JPEG or WebP. Recreate the result after changing settings.
PRIVATE BY DESIGN

Why use this tool?

Your image is never uploaded to a server. Rounded corner clipping and downloads run locally in your browser using Canvas. No accounts, remote APIs or persistent input storage are required. Clear releases the working image and result.

Tool inputs stay in your browser. Only your theme preference is saved on this device.

A few things worth knowing

How is the corner radius calculated?

Radius is 0–50% of the shorter working-image side, in steps of 0.1%. The effective pixel radius is displayed. At 0%, corners are square. With all corners enabled, 50% makes a circle on a square image or a pill shape on a rectangle. No automatic square crop is performed.

Can I round just one corner?

Yes. Toggle the top-left, top-right, bottom-left and bottom-right corners independently. All enabled corners use the same radius. Disabled corners remain square. Every result starts from the original working image.

How do transparent corners and JPEG work?

PNG and WebP can preserve transparent corners and original transparency. JPEG always fills transparency with the selected background color. Disabling transparent corners also fills transparent source pixels with the background. Smooth corner edges may contain partially transparent pixels.

What are the size and metadata limits?

Choose one static PNG, JPEG or WebP up to 20 MiB, 40 MP and 16,384 pixels per side. Larger inputs are downscaled to a working image within 2,400 pixels per side and 4 MP. Downloads use that working size and are capped at 32 MiB. Original EXIF and GPS metadata are not copied; browser orientation and color handling applies.