Werkery

CSS Border Radius Generator

Visually build border-radius values for any element. Adjust each corner independently or use a single value. Live preview + copy.

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How it works

  1. 1
    Pick mode
    Uniform or per-corner.
  2. 2
    Drag sliders
    Visual feedback.
  3. 3
    Copy CSS
    Drop into your stylesheet.

Frequently asked

Why are pills always 9999px?

border-radius is clamped to half the shorter side, so any number ≥ that gives a pill. 9999px is a community convention to mean 'fully rounded'.

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Tool designed and editorially reviewed by Felix Brübach. Text drafted with AI assistance and reviewed for legal and factual accuracy before publication. Not legal advice — for complex cases, consult a lawyer.
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