Tired of manually guessing border-radius values? Our free Border Radius CSS Generator is here to help! It’s a simple, visual tool that lets you create the perfect rounded corners for your website elements in seconds. Just move the sliders to see a live preview, and when you’re happy with the shape, copy the ready-to-use CSS code.

Edit Individual Corners

All Corners: 15%

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Master Modern UI Shapes with the Border Radius CSS Generator

In modern web design, sharp, rigid corners can make a user interface feel harsh and outdated. Softening those edges with the border-radius property is one of the quickest ways to give your website a clean, approachable, and premium aesthetic. However, guessing pixel or percentage values by typing them out manually slows down your creative flow.

The Border Radius CSS Generator eliminates the guesswork. It is an interactive, visual playground that lets you craft perfectly rounded elements in real-time, delivering clean, production-ready code in seconds.

Why Use a Visual Radius Generator?

Instant Visual Feedback: Instead of changing a number in your code editor, saving, and refreshing your browser, you can simply drag a slider and watch your design morph instantly.
Symmetrical or Complex Shapes: By default, the tool handles all four corners uniformly for a clean, cohesive look. If you need something more unique—like an organic, leaf-like shape or a custom asymmetrical card—you can toggle the Edit Individual Corners feature to adjust each angle independently.
Bulletproof Cross-Browser Support: Writing modern CSS is great, but older browsers or specific mobile rendering engines can sometimes drop styling rules. This tool automatically includes necessary vendor prefixes (-webkit- and -moz-) so your layout stays perfectly intact across all devices.

How to Use the Generator (Step-by-Step)

Using this tool is straightforward, making it perfect for both beginner web designers and seasoned frontend developers:

Set Your Target: Decide if you want a uniform curve or custom corners. Check or uncheck Edit Individual Corners based on your goals.
Adjust the Sliders: Move the slider to scale the radius. The preview box changes immediately, showing you exactly how the final container will look on a live web page.
Copy the Code: Click the blue Copy CSS button to instantly save the code block to your clipboard.
Paste and Deploy: Drop the snippet directly into your project’s stylesheet, like this:

CSS

.custom-card {
    -webkit-border-radius: 15%;
    -moz-border-radius: 15%;
    border-radius: 15%;
}

Pro-Tips: Elevating Your Element Design

Smooth corners rarely live in a vacuum. To create a deeply polished, professional-looking user interface, try layering your rounded shapes with other critical CSS properties:

Add Realistic Depth: A smooth container looks beautiful when paired with a soft shadow. Use our Box Shadow CSS Generator to give your newly rounded elements realistic elevation and lift.
Define Your Outlines: If your container needs a visible frame to stand out against a busy background, pair your corner radius with custom borders using the Border CSS Generator.
Craft Beautiful Clickables: Rounded edges are a staple of modern call-to-action design. Take your smooth corner values over to the CSS Button Generator to build highly engaging, interactive buttons.

Use Cases for Border-Radius

You can use rounded corners on almost any element, but here are a few popular ideas:

Modern Buttons: Soften your “call to action” buttons to make them look more modern and clickable.
Circular Avatars: Easily create perfectly round user profile pictures by setting the radius to 50%.
Card-Based Layouts: Apply a slight radius to your blog post cards, product cards, or testimonial boxes for a cleaner, more organized UI.
Form Inputs: Style your search bars and contact form fields to match your site’s overall design.
Custom Shapes: Get creative! By setting different values for individual corners, you can create unique shapes like leaves, tabs, or slanted boxes.

Frequently Asked Questions (FAQs)

1. What is the `border-radius` property in CSS?

The border-radius property is a CSS rule that allows you to round the corners of an element’s border. Instead of a sharp 90-degree angle, you can make it a smooth curve. You can apply it to images, buttons, div containers, and almost anything else!

2. Why does the generated code include `-webkit-` and `-moz-` prefixes?

Those are called “vendor prefixes.” They are included to ensure your rounded corners work correctly on older versions of specific web browsers (like Safari, which uses -webkit-, and Firefox, which uses -moz-). While most modern browsers just need border-radius, including these provides the best possible compatibility.

3. Can I set different values for each of the four corners?

Yes! While the main slider controls all four corners at once, you can check the “Edit Individual Corners” option. This will give you four separate sliders to set a unique radius value for the top-left, top-right, bottom-right, and bottom-left corners.

4. What’s the difference between using percentages (%) and pixels (px)?

Pixels (px): This is a fixed value. A border-radius: 10px; will always be a 10-pixel curve, no matter the size of the element.
Percentage (%): This is a responsive value based on the element’s size. A border-radius: 50%; will always create a perfect circle or ellipse, because the curve is 50% of the element’s height and width. Our tool uses percentages for a more flexible and modern result.

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