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CSS Border Radius Generator

CSS

Visually generate CSS border-radius values with per-corner controls, live preview, and one-click copy.

0
0
16px
16px
16px
16px
Width2px
Color#EF4444
border-radius: 16px;
border: 2px solid #EF4444;

Border-radius syntax actually supports four independent corner values, and even elliptical corners with separate horizontal and vertical radii per corner using a slash, a speech bubble shape or a card with only its top corners rounded is entirely achievable in CSS, but typing out an eight-value slash syntax by hand and imagining what it renders as is genuinely hard to do accurately. This tool generates CSS border-radius values with independent per-corner controls and a live preview, making an asymmetric or elliptical corner shape achievable by direct visual manipulation rather than guessing at slash-separated numbers.

See more about the CSS Border Radius Generator

Useful for shaping a speech-bubble-style corner by adjusting each corner independently while watching it render live, rounding only a card's top two corners without touching the bottom ones, or fine-tuning an elliptical corner radius visually instead of calculating the slash syntax by hand.

Key features

  • Clean interface
  • Fast processing
  • No signup required
  • Works offline

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Quick answers for CSS Border Radius Generator

Can each corner have a different radius?
Yes, toggling to Unlinked lets you drag each of the four corner sliders independently, Linked mode moves all four together from one slider.
What do the four presets set up?
Subtle (4px on all corners), Rounded (16px), Pill (100px), and Circle (50% using percentage units instead of pixels).
Does the copied CSS include the border itself?
Yes, the output includes both the border-radius value and a border declaration using your chosen width and color, not just the radius alone.