Rounded Corners

Rounded corners with a transparent background

Upload an image, drag the radius slider, and the tool draws your picture inside a rounded rectangle, exporting a PNG with a transparent outside area. Perfect for avatars, app icons, product cards and blog thumbnails that sit on coloured backgrounds.

Why transparent PNG matters

If you exported a rounded JPG, the corners would be filled with a solid colour that clashes with whatever background you place the image on. PNG keeps the corner area fully transparent, so the image blends into any page, slide or card.

How to use

• Drop one or more images.
• Drag "corner radius" — 6–14% looks natural for avatars, up to 50% (a full circle on a square image) for avatar-style results.
• Download the transparent PNG. Each change re-generates instantly.

Details

• The radius is a percentage of the shorter side, so portrait and landscape images round consistently.
• Output is always PNG (transparency is required). Need smaller files? Combine with [Compress Image](/tool/compress-image) or convert to [WebP](/tool/png-to-webp).
• Processed locally in your browser: no upload, no watermark, up to 30 MB per file.

Frequently asked questions

• Will the corners be white? No — they are transparent, so any background shows through.
• Can I make a full circle? Yes, set the radius to 50% on a square image.
• Can I batch-process? Yes.
• Is it free? Yes, no sign-up.

FAQ

Are the corners really transparent?

Yes — the output is a PNG with an alpha channel, so the area outside the rounded rectangle is fully transparent.

Can I get a perfect circle?

Use a square image and set the radius to 50%. Non-square images become a rounded rectangle (a "pill").

Does it work on many files?

Yes, drop a batch and every image gets the same radius with its own download link.