CSS Border Radius Generator
CSS Border Radius Generator
Create rounded corners for buttons, cards and images - free CSS border radius generator with live preview
border-radius: 10px;What is CSS Border Radius Generator?
CSS border-radius is the property that creates rounded corners on HTML elements. This free CSS border radius generator helps web developers and designers create perfectly rounded buttons, cards, images, containers, and any UI component without writing code manually. Rounded corners are essential in modern web design - they soften harsh edges, create friendly user interfaces, and are used in virtually every website and app. The border-radius property accepts values in pixels (px) for fixed-size corners or percentages (%) for responsive corners that scale with the element. You can apply uniform rounding to all corners or customize each corner individually for unique shapes like pills, tabs, or organic blobs. Our border radius generator provides real-time visual preview as you adjust each corner, generates optimized CSS shorthand code, and lets you copy the code with one click. Whether you need subtle 4px rounded corners for a professional look or 50% radius to create perfect circles, this tool makes it effortless.
How to Use This Tool
Adjust the Top Left corner radius using the slider or enter a value directly
Set the Top Right corner radius for asymmetric designs or match Top Left for uniform corners
Adjust Bottom Right and Bottom Left corners to complete your shape
Switch between pixels (px) for fixed corners or percent (%) for responsive scaling
Watch the live preview update as you customize each corner
For a pill shape, use high pixel values (50px+). For a circle, use 50% on a square element
Click Copy Code to get the CSS border-radius property ready for your stylesheet
Examples
Features
- Create rounded corners for buttons, cards, and containers
- Customize each corner radius independently
- Choose between pixel (px) and percentage (%) units
- Generate CSS border-radius shorthand automatically
- Real-time preview as you adjust corner values
- Create perfect circles with 50% border radius
- One-click copy CSS code to clipboard
- Free to use - no registration required
Frequently Asked Questions
- How do I create rounded corners in CSS?
To create rounded corners in CSS, use the border-radius property. For uniform corners: border-radius: 10px;. For individual corners: border-radius: 10px 20px 10px 20px; (top-left, top-right, bottom-right, bottom-left). Use our CSS border radius generator to visually create the perfect corners and copy the code.
- How do I make a perfect circle with CSS border-radius?
To create a perfect circle with CSS, set border-radius: 50% on an element with equal width and height (a square). For example: .circle { width: 100px; height: 100px; border-radius: 50%; }. The 50% value makes the radius half of each dimension, creating a perfect circle regardless of size.
- What is the difference between border-radius px and percentage?
Pixel (px) values in border-radius create fixed-size corners - a 10px radius stays 10px regardless of element size. Percentage (%) values scale relative to the element - 50% on a 200px wide element creates a 100px radius. Use pixels for consistent corners across different sizes, and percentages for responsive designs or circles.
- How do I round only one corner in CSS?
To round a single corner, use the specific corner property: border-top-left-radius, border-top-right-radius, border-bottom-right-radius, or border-bottom-left-radius. For example: border-top-left-radius: 20px;. Or use the shorthand with zeros: border-radius: 20px 0 0 0; rounds only the top-left corner.
- What is the CSS border-radius shorthand syntax?
The CSS border-radius shorthand accepts 1-4 values: 1 value (all corners), 2 values (top-left/bottom-right, top-right/bottom-left), 3 values (top-left, top-right/bottom-left, bottom-right), or 4 values (top-left, top-right, bottom-right, bottom-left clockwise). Our generator automatically creates the optimal shorthand code.
- Can I use border-radius on images in CSS?
Yes, border-radius works on images and any HTML element. Apply it directly to img tags: img { border-radius: 10px; }. For circular profile pictures, use border-radius: 50% with equal width and height. You can also apply border-radius to container divs with background images or use it with overflow: hidden for masked effects.