Add Rounded Corners for App Icon

iOS app icons use a squircle shape — a mathematically defined superellipse with a characteristic smooth rounding. While this tool applies standard circular-arc corner rounding rather than a true squircle, the result is visually similar and works perfectly for mockups, design presentations, and non-App-Store contexts.

For Android app icon guidelines, icons should have approximately 20% corner radius relative to icon size. For a 512×512 px icon, that means approximately 102 px radius. Use the slider to dial in the exact ratio that matches your target platform.

Export your app icon with rounded corners as a PNG with transparent background. The transparent corners mean the icon will display correctly in any device screenshot mockup or design tool. No server upload — process icon assets locally.