Rounded Corner Tool: Adding Soft Edges to Photos
Rounded corners soften an image's appearance and make it feel more polished — useful for app icons, profile photos, and modern web design. This tool applies any corner radius from subtle (2-4px) to fully circular.
Sharp 90° corners are visually 'harder' than rounded ones — software design has trended toward rounded UI elements since the iPhone introduced soft-edged icons in 2007. Rounded corners signal modernity, friendliness, and approachability.
Technically, rounded corners on raster images require either generating a transparent PNG (which preserves rounding everywhere) or pre-rendering against a background color (which only looks right on that background).
Common rounding amounts
- •2–4 px: barely visible softening, for very subtle polish
- •8–12 px: standard 'modern UI' look (iOS app cards, web buttons)
- •20–30 px: noticeable rounding, sometimes used for hero images
- •Half the shorter dimension: makes corners fully round (creates pill or circle shapes)
Extended FAQ
Why do iOS app icons have rounded corners I didn't add?
iOS automatically rounds app icons. Don't pre-round your design — submit a square and let the OS apply the standard radius.
Will rounded corners save as JPG?
JPG has no transparency, so the corners will be filled with whatever background color you choose. PNG or WebP preserves transparency around the corners.
Are my images uploaded?
No — runs entirely in your browser.