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Border Radius Generator

Set each corner radius with live preview. Link corners, px or % units, presets, copy or download CSS.

PrivateIn your browserInstantUnlimited

Values follow top-left → top-right → bottom-right → bottom-left. Equal corners collapse to a single value.

How it works

1

Choose a preset or unit

Click a preset for common shapes — rounded card, pill button, circle, or asymmetric corners. Switch between px and %.

2

Adjust corners

Use linked mode to set all corners at once, or unlink to edit each corner independently.

3

Copy or download CSS

Preview updates live. Copy border-radius: …; or download border-radius.css.

Why use a border-radius generator?

Fine-tuning each corner by trial and error is tedious. Sliders and presets help you land on the right rounded shape for cards, buttons, and avatars.

Why use this tool

  • Four-corner control with live preview
  • Linked or independent corners
  • px and % units
  • Six quick presets
  • Compact shorthand when corners match
  • Unlimited use — no daily cap

Questions

What does Border Radius Generator do?

It builds CSS border-radius values for all four corners with sliders and a live preview.

What order are the corners in?

CSS shorthand goes clockwise from top-left: top-left, top-right, bottom-right, bottom-left.

When should I use percent?

Percentages are relative to the element size — 50% on a square makes a circle. Pixels give fixed corner sizes.

What does Linked mode do?

When linked, moving one slider updates all four corners to the same value.

Is my CSS sent to a server?

No. Everything runs in this browser tab.

Is there a daily limit?

No. This generator is unlimited on the free plan.

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