Don's Tools · Image · Round Corners

Round image corners

Drop up to 100 images, set the radius, then press the button. Keep the corners transparent or add a background. Nothing is uploaded.

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Drop images here
or tap to choose · PNG, JPG, WebP, GIF, BMP · up to 100
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90%
0 / 100
Add images above, then press the button
Round Corners is a free tool that rounds the corners of up to 100 images at once entirely in your browser. Set the radius in percent or pixels, keep the corners transparent or fill them with a background colour, save as PNG, WebP or JPEG, and download each file or all of them as a ZIP. Your images are never uploaded and stay on your device.

Frequently asked questions

Can it round corners on 100 images at once?

Yes, up to 100 per batch. Everything runs on your device, so a big batch depends on your computer's memory and speed. On older phones or low-memory devices, very large or very many images may slow down, so just do them in smaller groups.

Are my images uploaded anywhere?

No. Everything happens inside your browser, so your files never leave your device and nothing is sent to a server.

Why is my download a PNG?

Rounded corners need transparency so the cut corners are see-through, and only PNG and WebP keep transparency. JPEG has no transparency, so with JPEG the corners are filled with a background colour (white by default). Pick PNG or WebP to keep the corners see-through.

How do I set the corner radius?

Choose Percent (of the shorter side) or Pixels, then set the value. Larger values mean rounder corners, and the radius is capped at half the shorter side, so the maximum gives you a pill or circle shape.