Border Radius Generator
The Border Radius Generator is a simple and powerful tool that helps you visually create rounded corners for any box, button, image, or UI element. Instead of writing CSS manually, you can use the sliders to adjust each corner—Top Left, Top Right, Bottom Left, and Bottom Right—and instantly preview the result in real time.
CSS Code:
border-radius: 0px 0px 0px 0px;
How to Use the Border Radius Generator
Create perfect rounded corners in three simple steps
Adjust the Corner Sliders
Use the four sliders to control each corner independently, or enable “Sync All Corners” to adjust all corners at once. You can also type exact values into the number inputs for precision control.
Preview Your Design
Watch the preview box update in real-time as you adjust the sliders. This lets you see exactly how your border radius will look before applying it to your project.
Copy and Use the CSS
Once you’re happy with the result, click the “Copy CSS” button. The code is ready to paste directly into your stylesheet or style tag with full browser compatibility.
Why Use a Border Radius Generator?
Save Time
No more guessing values or writing CSS by hand. See changes instantly and get production-ready code in seconds.
Visual Feedback
The live preview lets you experiment freely and fine-tune your design until it’s exactly right.
Cross-Browser Support
Generated CSS includes vendor prefixes for maximum compatibility across all modern browsers.
Perfect for Beginners
No CSS knowledge required. The intuitive interface makes it easy for anyone to create professional designs.
Frequently Asked Questions
What is border radius and why should I use it?
Border radius is a CSS property that rounds the corners of an element's outer border edge. Instead of sharp 90-degree corners, you can create smooth, curved corners that give your website a modern, polished look.
Using rounded corners makes your design feel more approachable and contemporary. It's become a standard in modern web design because it softens the visual appearance and creates better visual hierarchy. Whether you're designing buttons, cards, images, or forms, adding the right amount of border radius can significantly improve your user interface.
How do I create a perfect circle using border radius?
To create a perfect circle, you need two things: a square element (equal width and height) and a border-radius value of 50% or higher. For example, if you have a 100px by 100px box, setting the border radius to 50px or 50% will make it circular.
In our generator, simply turn on "Sync All Corners" and drag any slider to 50% of your element's size. This is perfect for profile pictures, icon backgrounds, or decorative circular elements. Keep in mind that if your element isn't square, you'll get an oval shape instead of a perfect circle.
Will the generated CSS work on all browsers?
Yes! The CSS generated by our tool includes vendor prefixes (-webkit- and -moz-) to ensure maximum compatibility across all modern browsers including Chrome, Firefox, Safari, Edge, and Opera.
The border-radius property has been widely supported since 2011, so you can use it confidently in any current web project. Even older versions of Internet Explorer (IE9+) support the standard border-radius property. The vendor prefixes we include are there to provide extra support for older mobile browsers and legacy systems, giving you peace of mind that your rounded corners will display correctly everywhere.
Can I use different values for each corner?
Absolutely! That's one of the best features of this tool. Simply turn off the "Sync All Corners" toggle and you can adjust each corner independently using the four separate sliders for Top Left, Top Right, Bottom Left, and Bottom Right.
Using different values for each corner can create unique, interesting designs. For example, you might round only the top corners of a dropdown menu, or create an asymmetric card design by rounding just the bottom-left and top-right corners. This flexibility lets you match your specific design vision and create distinctive visual elements that stand out from generic rounded boxes.