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Free CSS Tool

Border Radius Generator

Sculpt perfect corners with independent horizontal and vertical radius on every corner, then copy the CSS.

100% Free No signup Runs in your browser No uploads

8-point corner control

TOP LEFT

TOP RIGHT

BOTTOM RIGHT

BOTTOM LEFT

Live preview

Your shape

Generated CSS

Frequently asked questions

What do the two sliders per corner do?

Each corner has a horizontal and a vertical radius. Different values create elliptical corners; equal values create circular ones. The generated code uses the slash syntax for elliptical radii.

How do I make a pill or circle shape?

Click Pill for fully rounded ends. For a true circle, use Pill on a square element in your own CSS (width equals height).

What does Random blob do?

It picks random radii for all eight controls to create an organic blob shape. Copy the CSS once you like the result, or fine-tune with the sliders.

Preview

Border Radius Generator tool preview
Live preview of the Border Radius Generator tool running in your browser. Your data never leaves your device.

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