JR Trove
Free · Browser-only · No signup

CSS Border Radius Generator

Build CSS border-radius visually — link all four corners or set each independently. 8 presets (pill, rounded, button, top-only, speech bubble, leaf, blob). Live preview.

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Quick presets
CSS
border-radius: 24px;
Medium Rectangle 336×280 • Ad slot
Inside the tool

What powers the CSS Border Radius Generator

Linked-all-corners or independent per-corner mode

8 presets covering common shapes

Live preview

Customizable box and background color

Smart CSS output (collapses to short form when corners match)

Built differently

Why the CSS Border Radius Generator is different

Browser-native

The CSS Border Radius Generator runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.

No artificial limits

No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.

Production-grade quality

Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.

Use Contexts

Common use contexts

  • Rounding buttons, cards, modals, avatars
  • Creating pill-shaped tags / badges
  • Speech-bubble UI elements
  • Custom shapes with asymmetric corners (leaf, blob)
Privacy by design

Private and secure

Zero upload

All processing happens in your browser. Input is never transmitted, logged or cached.

Works offline

Once the page loads, the tool runs without an internet connection. No network calls happen during use.

No tracking

No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.

Leaderboard 728×90 • Ad slot
FAQ

CSS Border Radius Generator questions

50% (or any value ≥ half the element's width). For a square element, border-radius: 50% = circle. For a rectangle, you get a pill (capsule).