Visually craft CSS border-radius with live preview and copy production-ready code.

Preview Drag the corner handles
CSS
border-radius: ;

100% private — everything runs in your browser. Nothing is uploaded.

All corners
px
px
Element
Presets

About CSS Border Radius Generator

The CSS Border Radius Generator crafts everything from softly rounded cards to organic blob shapes. Drag the corner handles directly on the preview, or set each corner numerically — including the full eight-value syntax, where every corner has separate horizontal and vertical radii. That second axis is what unlocks eggs, leaves, teardrops and blobs.

A link-corners toggle keeps all four corners in sync for classic uniform rounding, while unlinking them frees each corner for asymmetric shapes. Twelve presets — rounded, pill, circle, squircle, two blobs, leaf, egg, arch, teardrop, petal and wave — demonstrate what the property can do, and a randomize button generates fresh organic shapes endlessly.

You can change the unit, recolor the element and canvas to match your design, and copy either the bare border-radius value or a full CSS rule. The tool is 100% client-side — nothing is uploaded.

How to use CSS Border Radius Generator

  1. Drag the corner handles on the preview, or switch off “Link all corners” to edit each corner separately.
  2. Set the horizontal and vertical radius per corner for organic, blob-like shapes.
  3. Pick your unit and adjust the element and background colors to preview in context.
  4. Try the presets — pill, squircle, blob, leaf, teardrop and more — or hit randomize.
  5. Copy the border-radius value or the complete CSS.

Frequently asked questions

Values before the slash are the horizontal radii of the four corners; values after it are the vertical radii. Making the two axes differ per corner is what turns a plain rounded box into an egg, leaf or blob.

For a circle, use a square element with border-radius: 50%. For a pill, give any rectangle a radius of at least half its height — the circle and pill presets set both up instantly.

Yes — border-radius clips the element’s box, including background images, and overflow: hidden extends the clip to child content. Applying a blob radius to an img element is a quick way to get organic photo masks.

Yes, border-radius interpolates smoothly with CSS transitions when both states have compatible units. Animating between two blob values on hover is a popular organic morphing effect — generate both states here and transition between them.

Yes, completely free and private: it runs in your browser only, with no account and no data sent anywhere.


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