Toolsvana→Design Tools→Border Radius Generator

Border Radius Generator

Create CSS border-radius properties

Unit

Link all corners

Corner Radius

Top Left: 8px

Top Right: 8px

Bottom Left: 8px

Bottom Right: 8px

Preset Shapes

Preview Settings

Size: 200px

Color

Preview

Corner Values

8px

CSS Code

border-radius: 8px;

Alternative Formats

Individual Properties

border-top-left-radius: 8px;
border-top-right-radius: 8px;
border-bottom-right-radius: 8px;
border-bottom-left-radius: 8px;

CSS Class

.rounded-custom {
  border-radius: 8px;
}

Tailwind CSS (Approximate)

rounded-lg

Tips

• Use percentage values for responsive rounded corners that scale with element size

• A 50% border-radius on a square element creates a perfect circle

• Different corner values can create unique organic shapes

• em and rem units are useful for scalable designs that adapt to font size

• Use subtle rounded corners (2-8px) for modern, clean interfaces

• Large border-radius values work great for pill-shaped buttons

About Border Radius Generator

Our free CSS border radius generator gives you complete visual control over rounded corners for any HTML element. Adjust each corner independently or link them all together, choose from multiple units (px, %, em, rem), and see the results instantly in the live preview panel.

Rounded corners are a fundamental part of modern web design. From subtle 4px rounds on cards and inputs to full 50% circles for avatars, the border-radius property shapes how users perceive your interface. This tool makes it effortless to find the exact values you need without guesswork or constant browser refreshing.

The generator includes 10 preset shapes such as Square, Circle, Pill, Teardrop, and Organic, plus a random generator for creative exploration. Output is provided in multiple formats including CSS shorthand, individual corner properties, a ready-to-use CSS class, and an approximate Tailwind CSS equivalent.

Key Features

Independent control over each corner: top-left, top-right, bottom-right, and bottom-left
Link corners toggle for uniform radius adjustment across all four corners
Four unit options: pixels (px), percentage (%), em, and rem for responsive designs
Real-time preview with adjustable element size (100-300px) and custom color picker
10 preset shapes: Square, Rounded, Circle, Pill, Top Rounded, Bottom Rounded, Left Rounded, Right Rounded, Teardrop, and Organic
Visual corner value indicators showing exact radius at each corner
Random radius generator for creative inspiration and experimentation
Multiple CSS output formats: shorthand, individual properties, CSS class, and Tailwind CSS approximation
One-click copy to clipboard for instant use in your projects
Slider controls with range display for intuitive value adjustment

How to Use the Border Radius Generator

Select your unit: Choose px for fixed sizes, % for responsive scaling, or em/rem for typography-based sizing.
Adjust corner values: Use the sliders to set each corner's radius individually, or enable "Link all corners" for uniform rounding.
Try preset shapes: Click any of the 10 preset shapes like Circle, Pill, or Teardrop to instantly apply common configurations.
Preview the result: View the live preview with adjustable size and color to see exactly how your border radius will look.
Copy the CSS: Click Copy to grab the border-radius CSS code, or use the alternative formats section for individual properties or Tailwind classes.

Use Cases

Button styling: Create pill-shaped buttons, subtly rounded call-to-action buttons, or fully circular icon buttons.
Card components: Apply consistent rounded corners to cards, modals, and dialog boxes in your design system.
Avatar images: Use 50% border-radius on square images to create perfect circular user avatars and profile pictures.
Input fields: Add gentle rounding to form inputs, textareas, and select dropdowns for a modern look.
Navigation elements: Style tabs, badges, tags, and navigation items with appropriate corner rounding.
Creative shapes: Combine asymmetric corner values to create organic blobs, teardrops, and unique decorative elements.
Tooltip and popover design: Apply precise corner rounding to tooltips, popovers, and dropdown menus.
Responsive design tokens: Establish consistent border-radius values across your project using em or rem units.

Frequently Asked Questions

Is this tool free?

Yes, the Border Radius Generator is completely free with no restrictions. You can use it as many times as you want without registration or payment.

Is my data secure?

Absolutely. The tool runs entirely in your browser. No data is transmitted to any server, so your settings and generated CSS code remain private on your device.

What is the difference between px and % for border-radius?

Pixel (px) values create a fixed radius regardless of element size. Percentage (%) values are relative to the element's dimensions, making them responsive. For example, 50% on a square element creates a perfect circle.

How do I make a perfect circle with CSS?

Set border-radius to 50% on an element with equal width and height. The Circle preset in this tool applies exactly that configuration.

Is border-radius supported in all browsers?

Yes, the border-radius CSS property is fully supported in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. No vendor prefixes are needed.

Tips & Best Practices

Use consistent values: Establish 2-3 standard border-radius values in your design system (e.g., 4px, 8px, 16px) for visual consistency.
Use percentages for circles: Set 50% on square elements for perfect circles that scale automatically with size changes.
Keep it subtle for forms: Small values (2-8px) work best for input fields and form elements to maintain a clean, professional look.
Try asymmetric corners: Different values on each corner create unique shapes that can add character to decorative elements.
Consider responsive units: Use em or rem for border-radius values that scale proportionally with your typography.
Test with content: Always check how rounded corners look with actual content inside the element, especially at different viewport sizes.