CSS Border Radius Generator & Shape Visualizer

CSS Border Radius Generator

Design custom corner curves, adjust individual or uniform radiuses, and copy clean CSS code instantly in your browser.

Top-Left Corner: 20px

Top-Right Corner: 20px

Bottom-Right Corner: 20px

Bottom-Left Corner: 20px

Live UI Shape Preview:

Box Element

Generated CSS Property

Valid CSS Snippet

CSS Declaration:
border-radius: 20px 20px 20px 20px;

Understanding CSS Border Radius

The CSS `border-radius` property rounds the corners of an element's outer border edge, allowing developers to create smooth card components, circular avatars, and custom pill badges without raster graphics.

Generator Guidelines

Individual Corner Control: Specify separate pixel values for top-left, top-right, bottom-right, and bottom-left corners to craft unique geometric shapes.
Shorthand Syntax: Values flow clockwise starting from the top-left corner (`top-left top-right bottom-right bottom-left`).

Privacy & Security Note

All CSS generation and shape rendering calculations execute entirely client-side within your browser environment. Your UI parameters and design codes are never transmitted or stored externally.