CSS Border Radius Generator – Perfect Rounded Corners
Rounded corners are a fundamental design element in modern web interfaces. From subtle 4px radii to dramatic pill-shaped buttons, border-radius transforms sharp edges into visually appealing, friendly designs. The CSS Border Radius Previewer by ToolfolioHub provides an intuitive visual interface to adjust all four corners independently, see the result instantly, and copy production-ready CSS code.
Whether you're designing buttons, cards, images, or containers, getting the perfect border-radius values can be time-consuming when done manually. This tool eliminates guesswork with live preview and instant code generation.
What is CSS Border-Radius?
The `border-radius` CSS property rounds the corners of elements. It accepts:
- Single value: `border-radius: 10px;` - all corners
- Two values: `border-radius: 10px 20px;` - top-left/bottom-right, top-right/bottom-left
- Four values: `border-radius: 10px 20px 30px 40px;` - top-left, top-right, bottom-right, bottom-left
Values can be in pixels (px), percentages (%), or other CSS units. Larger values create more rounded corners, and setting radius to 50% creates perfect circles (for square elements) or pill shapes.
Key Features & Benefits
1. Independent Corner Control
Adjust each corner (top-left, top-right, bottom-right, bottom-left) independently with separate sliders. This flexibility allows for:
- Asymmetric designs (e.g., rounded top corners, sharp bottom corners)
- Custom shapes for specific design needs
- Fine-tuning for brand consistency
2. Live Visual Preview
See changes instantly as you adjust sliders. The preview box updates in real-time, eliminating the need to manually test values in a code editor.
3. Production-Ready CSS Output
Generated CSS code is ready to copy and paste directly into your stylesheet. The four-value format is explicit and compatible with all browsers.
4. Range: 0-150px
Sliders support values from 0 (sharp corners) to 150px (very rounded), covering all practical use cases.
How to Use the Border Radius Generator
- Adjust Sliders: Move the sliders for each corner to set desired radius values.
- View Preview: Watch the preview box update in real-time.
- Copy CSS: Copy the generated CSS code from the output box.
- Paste in Code: Use the CSS in your stylesheet.
Common Use Cases
- Buttons: 4-8px for subtle rounding, 20-30px for pill-shaped buttons
- Cards: 8-16px for modern card designs
- Images: 4-12px for subtle photo rounding
- Modals: 12-20px for dialog boxes
- Input Fields: 4-8px for form inputs
Conclusion
The CSS Border Radius Generator streamlines the process of creating perfect rounded corners. With live preview and instant code generation, it's an essential tool for web designers and developers who want to create polished, modern interfaces quickly.