CSS Border Radius Generator
Create CSS border-radius for rounded corners visually and copy the code. No signup. Ideal for web designers and developers styling buttons, cards and containers.
This border radius generator creates the CSS for rounded corners visually, directly in your browser. Adjust the corners until the shape looks right, and copy the border-radius code. No account, no install, so web designers and developers can style rounded corners on any device in seconds, without writing the CSS by hand.
How to Generate Border Radius CSS Step by Step
- Adjust the corners. Use the controls to round the corners of the preview shape, either all together or each corner individually, until it looks the way you want.
- See the live preview. Watch the preview update as you adjust, showing exactly how the rounded corners will look, so you can shape it precisely by eye.
- Fine tune each corner if needed. For more control, adjust individual corners to different amounts, creating asymmetric rounded shapes where you want them.
- Copy the CSS. Once the shape looks right, copy the generated border-radius CSS, which produces exactly the rounded corners shown in the preview.
- Paste it into your styles. Add the copied border-radius to your element's CSS, applying the rounded corners to your button, card, or container in your project.
What CSS Border Radius Does
The CSS border-radius property rounds the corners of elements, turning sharp rectangular corners into smooth curves. It is one of the most common styling touches in modern web design, used on buttons, cards, images, containers and more, giving interfaces a softer, more polished look. Border-radius can round all corners equally or each corner differently, and can create anything from a slight rounding to a full pill or circle shape.
While the border-radius CSS itself is not complicated, getting the exact rounding you want by writing values and repeatedly checking the result is fiddly. You often need to see the shape to judge the right amount of rounding, and adjusting individual corners or aiming for a particular look involves trial and error. A visual generator lets you shape the corners directly and see the result immediately, then gives you the exact CSS.
This visual approach is the main value of a generator. Instead of guessing values, writing CSS, checking the browser, and repeating, you adjust the corners and watch the preview update live, shaping the rounding by eye until it looks right. Then you copy the precise CSS that produces that shape. This is faster and more intuitive than writing and tweaking border-radius values by hand, especially for asymmetric or particular shapes.
Border-radius generators are used by web designers and developers styling interface elements. Rounded corners appear throughout modern designs, so being able to dial in the exact rounding visually and grab the CSS is genuinely handy. It suits quick styling, experimenting with different looks, and getting the precise rounded shape for buttons, cards and containers without the back and forth of writing and testing CSS values manually.
Visual Generating Versus Writing CSS by Hand
| Aspect | Visual generator | Writing CSS by hand |
|---|---|---|
| See the shape | Live preview as you adjust | Check the browser repeatedly |
| Adjusting | Drag or set visually | Guess and edit values |
| Asymmetric corners | Easy to shape by eye | Fiddly to get right |
| Speed | Fast and intuitive | Slower back and forth |
Who Uses a Border Radius Generator
Pro Tips for Rounded Corners
Common Border Radius Mistakes to Avoid
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Frequently Asked Questions
How do I generate border radius CSS?
Use the controls to round the corners of the preview shape, either all together or each corner individually, watching the live preview update so you can shape the rounding by eye until it looks right. Once you are happy with the shape, copy the generated border-radius CSS, which produces exactly the rounded corners shown in the preview, and paste it into your element's styles. This lets you dial in the precise rounding visually and grab the code, without writing and repeatedly testing border-radius values by hand.
What does CSS border-radius do?
The CSS border-radius property rounds the corners of elements, turning sharp rectangular corners into smooth curves. It is one of the most common styling touches in modern web design, used on buttons, cards, images, containers and more, giving interfaces a softer, more polished look. Border-radius can round all corners equally or each corner differently, and can create anything from a slight rounding to a full pill or, on a square element, a circle shape. It is a versatile property for shaping the corners of interface elements in web design.
Why use a generator instead of writing the CSS?
Because shaping corners visually is faster and more intuitive than writing and tweaking values by hand. While the border-radius CSS itself is not complicated, getting the exact rounding you want by writing values and repeatedly checking the browser is fiddly, especially for asymmetric shapes or a particular look. A generator lets you adjust the corners and watch the preview update live, shaping the rounding by eye, then copy the precise CSS. This avoids the slow back and forth of guessing values, editing, and checking, giving you the exact shape and its code quickly.
Can I round each corner differently?
Yes, the border-radius property can round each corner by a different amount, creating asymmetric rounded shapes, and a generator makes this easy. Instead of working out and testing the individual CSS values for each corner by hand, you adjust each corner visually and see the result in the live preview, shaping the asymmetric look by eye. Once it looks right, you copy the generated CSS, which produces exactly that shape. This makes creating asymmetric rounded corners far easier than writing the individual values manually and checking them repeatedly.
Does the element's size affect how rounded it looks?
Yes, how rounded a corner appears depends on the element's size, because the same radius looks more or less rounded on different sized elements. A given radius that looks like a gentle curve on a large element might round a small element much more noticeably, or even turn it into a pill or circle if large relative to the element. So when using the generator, it helps to preview on a realistic size, or to bear the element's actual dimensions in mind, so the rounding looks as you intend when applied in your design.
How do I make a pill or circle shape?
A sufficiently large border-radius creates a pill shape on a rectangular element, or a circle on a square element, because the rounding becomes large enough to fully curve the sides. To make these shapes, use a large enough radius, which the generator lets you preview so you can see when the shape becomes a full pill or circle. Since the effect depends on the element's size, previewing on a realistic size helps you get the pill or circle shape right, and then you copy the CSS that produces it for your element.
Where do I put the generated CSS?
You add the copied border-radius CSS to the styles for the element you want to have rounded corners, such as in your stylesheet or the element's style rules, applying it to your button, card, container, or other element. Once the border-radius is applied, the element will show the rounded corners exactly as you shaped them in the preview. Make sure you copy the complete generated CSS so it produces the intended shape, then place it with the element's other styling, alongside any colours, backgrounds or other properties you are using.
Is the border radius generator free?
Yes, it is completely free with no account and no usage limit. You can generate as much border-radius CSS as you like, shaping as many rounded corner styles as you want, as often as you like, at no cost. It runs entirely in your browser on any device, so there is nothing to download or install, and the CSS is ready to copy the moment your shape looks right, ready to paste into your project to style buttons, cards, containers and other elements with rounded corners.