Add Rounded Corners to an Image
This tool adds a selectable corner radius to photos and graphics while keeping the original image dimensions. It is useful for card layouts, profile images, product thumbnails, presentations and web assets that need softer edges.
Practical Example
If a 1200 × 800 product image needs a modern card-style appearance, apply a 40 px radius and export the result as PNG. The image stays 1200 × 800 while the corner areas become transparent.
Factors That Affect the Result
The visible curvature depends on both the selected radius and the image dimensions. A 40 px radius looks subtle on a large image but more pronounced on a small thumbnail. Very large values are automatically limited by half the image width or height.
Frequently Asked Questions
Does the tool change image dimensions?
No. Width and height remain unchanged.
Why is PNG used?
PNG preserves the transparent corner areas.
Is my image uploaded?
No. Processing occurs locally in your browser.
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Technical Details and Limitations
Rounded corners remove or mask pixels near each corner according to the selected radius. A radius that is large relative to image dimensions can produce a capsule or circular appearance; transparent output requires a format that supports alpha transparency.
Technical Details and Practical Limits
Rounded corners are created by masking pixels near each corner according to a radius. Large radii relative to image dimensions can create a capsule or circle-like result, and transparent corners require an alpha-capable format such as PNG or WebP.