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CSS Border Radius Generator

CSS Border Radius Generator

The CSS Border Radius Generator is a handy visual tool that allows you to create smooth, rounded corners for any HTML element with just a few clicks. By using sliders or input fields, you can easily adjust the curvature of each corner individually - or all at once - and instantly see the results in real time. When you're satisfied with the look, simply copy the generated CSS code and use it in your project.

What Is Border Radius?

The border-radius property in CSS allows you to round the corners of elements such as divs, buttons, images, and cards. You can set one uniform radius for all corners, or define each corner separately for more creative shapes. It supports both absolute units (like px) and relative ones (like %), giving you flexibility to adapt to different layouts.

/* Example: Uniform rounded corners */
.box {
  border-radius: 20px;
}

/* Example: Individual corner control */
.box {
  border-top-left-radius: 10px;
  border-top-right-radius: 30px;
  border-bottom-right-radius: 50px;
  border-bottom-left-radius: 5px;
}

Understanding the Syntax

You can define up to four values for border-radius in shorthand form:

• 1 value: applies to all four corners (border-radius: 20px;)
• 2 values: first applies to top-left & bottom-right, second to top-right & bottom-left (border-radius: 20px 40px;)
• 3 values: first applies to top-left, second to top-right & bottom-left, third to bottom-right
• 4 values: applies individually to top-left, top-right, bottom-right, bottom-left

You can also create elliptical corners by using two values separated by a slash (/):

/* Elliptical shape */
.box {
  border-radius: 50% / 20%;
}

How the Generator Works

The CSS Border Radius Generator provides an interactive grid where you can drag corner handles to shape your box visually. As you move the handles, the tool updates the border-radius code automatically. This makes it simple to design complex shapes, such as blobs or unique UI cards, without needing to memorize CSS syntax.

Tips for Using Border Radius

• Use 50% for perfect circles when width equals height.
• Combine border-radius with overflow: hidden; to crop images within rounded frames.
• Experiment with asymmetric radii to create organic, modern shapes.
• Use small radii (like 4px–8px) for subtle, professional UI design.

Copy and Apply

Once you’ve customized your shape, copy the generated CSS code and paste it into your stylesheet. It’s compatible with all modern browsers, including Chrome, Firefox, Safari, and Edge.

Example Use Cases

• Buttons with smooth edges
• Profile images inside circular frames
• Rounded containers and cards in modern UI layouts
• Organic blob shapes for background elements

Start experimenting with the CSS Border Radius Generator to add depth, softness, and personality to your designs effortlessly.