CSS Border Radius Generator
Customize individual corner radius values (top-left, top-right, bottom-right, bottom-left) visually.
Border Radius Controls
Visual Preview
border-radius: 16px 16px 16px 16px;About CSS Border Radius Generator
The CSS Border Radius Generator creates smooth rounded corners, organic blob shapes, and complex 8-value border radius curves with visual interactive drag handles and 1-click modern CSS code export.
How to Use CSS Border Radius Generator
Step 1
Drag the visual corner handles to adjust curvature.
Step 2
Toggle 8-value mode for asymmetrical organic blob shapes.
Step 3
Choose your preferred units (px or %).
Step 4
Click "Copy CSS" to paste into your stylesheet.
Practical Use Cases for CSS Border Radius Generator
UI Card & Button Corner Styling
Design consistent rounded corners for cards, input fields, pill badges, and modal dialogs in CSS and TailwindCSS.
Organic Blob & Decorative Shape Generation
Create fluid, organic blob shapes using 8-value CSS border-radius notation (`border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%`) for modern web headers.
Input & Output Examples
Generating 8-Value Organic Blob Shape
Top-Left: 30%, Top-Right: 70%, Bottom-Right: 70%, Bottom-Left: 30%
CSS: border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
Key Features & Performance
- ✓Interactive visual preview with 4-corner and 8-value curvature handles.
- ✓Supports Pixel (px), Percentage (%), and REM units.
- ✓Generates standard CSS and TailwindCSS utility classes (`rounded-2xl`, etc.).
- ✓Curated preset library with modern organic blob shapes and badge curves.
- ✓100% Client-Side interactive application.
- ✓1-Click Copy CSS rules.
Key Terminology & Definitions
8-Value Border Radius
CSS syntax using a slash (/) to define horizontal and vertical radii independently for each corner (horizontal radii / vertical radii).
Elliptical Corners
Corner curves formed by an ellipse rather than a circle, creating stretched organic aesthetic shapes.