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Rounded Corner Image
Round the corners of any image with platform presets or an exact radius, and download a transparent PNG.
Rounded Corner Image: TOEA clips the image to a rounded rectangle on a canvas, so the corners fall outside the path and are written to the PNG as fully transparent pixels. Runs 100% locally in your browser with zero server file uploads.
- Category
- Image tools
- Runs
- In your browser
- Cost
- Free · no sign-up
- Availability
- Ready to use
Runs entirely in your browser
PNG, JPG, WebP, or SVG · 1024 × 1024 or larger works best
When CSS does the job better
On a web page, border-radius in CSS rounds an image as it is displayed, keeps the file in whichever format is smallest, and lets the radius change later without re-exporting anything. Baked-in corners are for places without CSS: slides, documents, marketplace listings, social posts, and email, where Outlook's desktop app ignores border-radius. A photo saved as PNG this way gets much heavier; PNG to WebP keeps the transparent corners at a fraction of the size.
Not for store icons
Do not submit pre-rounded artwork as an app icon. iOS and Google Play apply their own mask to a full square, so corners rounded in advance leave transparent or dark slivers inside the system's shape. Rounded images suit icons that appear as ordinary pictures, on a website, in a presentation, or in a mock-up; for the icon files an app project needs, the app icon generator exports full squares.
How to use it
- Choose an image.
- Pick a preset such as iOS app icon, or set your own radius.
- Download the rounded PNG.
Privacy & limitations
The image is rounded locally and never uploaded. The output is always PNG, because JPG has no alpha channel to keep the corners transparent.
Related tools
Frequently asked questions
Which radius should I use?
The iOS app icon preset uses 22.37% of the width, which visually matches the home-screen mask; macOS uses 18.52%. For UI cards, the subtle 6% preset is usually closer to what you want.
Are the corners really transparent?
Yes. The result is a PNG with an alpha channel, so the corners show whatever is behind them rather than a white square.
Does this produce a true Apple squircle?
No. It draws a rounded rectangle with a circular arc, which is very close at typical sizes but not Apple's continuous-curvature shape. iOS applies its own mask to app icons anyway.
Can I round a non-square image?
Yes. The radius is measured against the shorter side and clamped to half of it, so a wide image rounds into a pill rather than breaking.
Free tool · runs in your browser · no account required