Border Radius Generator
CSS border-radius builder
Free forever — no sign-up, nothing uploaded. Files never leave your device.
Border Radius Generator
CSS border-radius builder
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Browse filesdocument.pdf
1.2 MB
report.pdf
860 KB
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About this tool
Round any element corner-by-corner with live preview and presets, and copy the generated border-radius rule.
BrainCoder's CSS border-radius generator lets you create custom rounded corners for any web element with a visual, interactive interface. Instead of manually calculating radius values, simply drag the corners or adjust the sliders to see your shape take form in real time. The tool generates the exact CSS code you need for smooth, consistent border-radius effects on cards, buttons, images, and any UI component.
The generator supports individual corner control (top-left, top-right, bottom-right, bottom-left) as well as elliptical radii for more complex shapes. It handles the shorthand CSS syntax automatically, producing clean code that you can paste directly into your project. Whether you're going for subtle rounding or dramatic pill shapes, this tool makes it effortless.
Everything runs in your browser with no server involved. It's a quick, developer-friendly utility that eliminates the guesswork from border-radius CSS. Perfect for designers prototyping UI elements and developers building polished interfaces.
Key features
Everything you get with Border Radius Generator — no premium upsell.
Visual interactive controls for all four corners
Support for elliptical border-radius (horizontal and vertical radii)
Live preview of the element with current radius settings
Generates clean CSS shorthand or individual corner properties
Pixel and percentage values supported
One-click copy of generated CSS code
How to use Border Radius Generator
Follow the steps below to use the tool.
- 1
Adjust Corner Radii
Use the visual controls or sliders to set the border-radius for each corner. Lock all corners together for uniform rounding or adjust them individually.
- 2
Preview the Shape
Watch the live preview update as you make changes. See exactly how the rounded corners will look on a sample element.
- 3
Copy the CSS
Click 'Copy CSS' to grab the generated border-radius property. Paste it into your stylesheet to apply the effect.
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