Generador de Bordes Redondeados CSS
Visually build CSS border-radius
100% gratis. Funciona completamente en tu navegador: tus archivos y datos nunca salen de tu dispositivo y no se sube nada a ningún servidor.
Corners
border-radius: 12px;Presets
Acerca de esta herramienta
Visually adjust an element's corner rounding - each corner independently if needed - with live preview, then generates the exact CSS border-radius syntax to copy, including support for the more complex elliptical corner values that are easy to get wrong by hand.
Cómo usar esta herramienta
- Pick base radius styleStart with uniform radius or per-corner editing mode.
- Adjust each cornerTune top-left, top-right, bottom-right, and bottom-left independently.
- Test elliptical valuesUse advanced mode for organic or blob-like corner shapes.
- Copy CSS outputPaste final `border-radius` syntax into your stylesheet.
Por qué usarla
- Accurate radius generation without memorizing complex shorthand.
- Visual feedback for per-corner and elliptical shapes.
- Speeds up component styling and experimentation.
- Produces valid CSS ready for production use.
Usos comunes
- Building button, card, and input corner systems.
- Creating custom shapes for modern UI layouts.
- Matching Figma corner specs in frontend code.
- Generating rounded avatars, pills, and badges quickly.
Consejos para mejores resultados
- Keep radius values consistent inside a component family.
- Use smaller radii for dense UI and larger for playful design.
- Preview corners at real component size before finalizing.
- Document standard radius tokens for team-wide consistency.
Errores a evitar
- Using random per-corner values that break visual rhythm.
- Applying very large radii on small components causing clipping.
- Ignoring how radius interacts with shadows and borders.
- Hardcoding many unique radius values instead of tokens.
Preguntas frecuentes
Yes - independently adjusting all four corners is supported, not just a single uniform radius applied everywhere.
Yes - with large enough radius values (or elliptical corner values), you can create fully rounded/circular shapes or organic blob-like outlines.
border-radius is well-supported in all modern browsers without vendor prefixes, so the generated CSS should work consistently everywhere.
Yes. CSS Border Radius Generator is free for normal use with no account required, and ToolBox does not add a watermark to your result.
Most tools in this category run in your browser so the file stays on your device. If a tool needs a temporary server job, files are handled for that job only and are not kept as a lasting archive.
No install needed. Open CSS Border Radius Generator in your browser, add your file or paste your input, then download or copy the result.
Yes on modern mobile browsers. For large files, a desktop browser is usually faster and more reliable.
Try a different quality or format setting, use a smaller input, or open a related tool (for example compress before convert). Keep a copy of the original file before replacing it.
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