How to Use Image Rounded Corner Tool

1. Upload an image.
2. Choose "Rounded corners" and set a radius, or choose "Full circle."
3. Check the live preview against a transparency checkerboard.
4. Download the result as a transparent PNG (or WebP).

Features & Benefits

• Adjustable corner radius from subtle rounding to a full "squircle" look.
• One-click full circle crop mode.
• Transparent PNG/WebP output so the shape works on any background.
• Live preview against a checkerboard so transparency is easy to verify.

Detailed Information

This tool uses the canvas 2D context's clipping-path feature: a rounded-rectangle (or full ellipse, for circle mode) path is defined and applied as a clip before the source image is drawn, so only pixels inside that shape are kept — everything outside becomes transparent. Because the output relies on transparency, the download format is restricted to formats that support an alpha channel (PNG and WebP); JPG cannot represent transparent pixels, so it's not offered here. The radius control is expressed in pixels and automatically capped at half the image's shortest side so it can't produce a broken shape.

Common Uses & Examples

• Creating a circular profile picture for a social media or app account.
• Rounding the corners of a product photo to match a card-based website design.
• Turning a square logo into an app-icon-style rounded square.
• Preparing an image cutout for a poster or collage layout.

Tips & Best Practices

• For app-icon-style results, a radius around 20% of the image width usually looks right.
• Circle mode works best on images where the subject is centered.
• Remember to export as PNG or WebP — JPG cannot preserve the transparent corners.

Conclusion

From a subtle rounded corner to a perfect circle crop, this tool produces a clean, transparent result ready to drop onto any design.