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Tools · CSS · Border-radius generator

Border-radius generator

Shape every corner of a box, or blend them into an organic blob, and copy the border-radius CSS.

Drop a file here, or choose one.

Runs fully in your browser. Nothing is uploaded.

How it works

  1. Adjust the linked radius, or turn off "Link all corners" to set each one separately.

  2. Switch to Blob mode, set the smoothness, and click Randomize for an organic shape.

  3. Copy the finished border-radius CSS.

Frequently asked questions

Yes. Turn off "Link all corners" and set each of the four corners independently.

It generates the border-radius shorthand technique used for organic, irregular shapes: a different horizontal and vertical radius per corner. Set how pronounced the effect is with Smoothness, then click Randomize for a new shape.

Yes. Set the radius to 50% for a circle on a square box, or a pill shape on a wide rectangle.

No. Everything runs in your browser.

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