Round the corners of an image by applying a radius mask. The output keeps the original pixel dimensions, so a 1200x800 image remains 1200x800; only the corner shape changes.
Uniform and separate corner radius
Keep Uniform radius on when all 4 corners should use the same value. Turn it off when only some corners need rounding or when a layout calls for asymmetric corners.
The editor supports separate values for:
- top left
- top right
- bottom right
- bottom left
Each image in a batch can keep the global radius or use its own override from the edit modal.
Transparent corners
Use PNG or WebP when the rounded corners should be transparent. Those formats can store an alpha channel, so the cut-off corners remain empty pixels.
JPEG cannot store transparency. When the output is JPEG, the corner area is filled with the selected background color. Use white, black, or an exact hex value when the image needs to sit on a known page background.
Batch corner rounding
Add JPG, PNG, or WebP files, choose the output format, set the radius, and inspect the preview cards. Download one image when you only need a single file, or export the full set as a ZIP.
Batch processing fits thumbnails, card images, app icons, product photos, and design-system assets that need the same corner treatment.
Radius limits
A radius larger than half the image width or height is clamped by the canvas path, because a corner cannot curve past the center of the image. Very high values on small square images can create pill or circle-like shapes.
If the preview looks wrong, reduce the radius first, then check whether the output format is forcing a solid background.