Round image corners
Drop up to 500 images, set the radius, then press the button. Keep the corners transparent or add a background. Nothing is uploaded.
Files are processed in your browser and never uploaded.
How to use Round image corners
Add your files
Drop up to 500 image files onto the upload area, or tap the area to choose them from your device.
Set the options
Choose Radius unit, Radius, Corners, Save as and Quality. Every setting is on screen before you add a file, so you can see what the tool will do before it runs.
Run it and save
Press Process it, Don →. The button stays disabled until there is something to work on, and each file shows its own progress and result. Press Download all, Don (.zip). Each finished file keeps a name based on the one you started with, so you can tell the versions apart.
What this tool does
Round image corners for up to 500 images at once
Drop up to 500 PNG, JPG, WebP, GIF or BMP images and every one gets the same corner treatment in a single run.
Radius in percent or pixels
Set the radius as a percentage, so it scales with each image, or in pixels when it has to be exact.
Transparent corners or a background colour
Leave the corners transparent for a PNG or WebP, or fill them with a background colour when the result will sit on a known ground.
Save as PNG, WebP or JPEG
Save as PNG or WebP to keep transparency, or JPEG when a smaller file matters more than the rounded corners showing through.
Download as a ZIP
Take the finished images one at a time, or all of them as a single zip.
Runs in the browser, no upload
Nothing is uploaded. Every image is decoded, rounded and saved inside your browser.
Frequently asked questions
Can it round corners on 100 images at once?
Yes, up to 500 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.
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