CSS Border Radius Generator
Create rounded corners with a live preview. Adjust the border radius for all corners at once or individually, then copy the CSS code instantly.
border-radius: 16px;
Click "Copy CSS" to copy the code to your clipboard.
What is a CSS Border Radius Generator?
This tool helps you create the CSS border-radius property without manually writing values. The border-radius property rounds the corners of an element’s outer border edge. You can set a single radius to make all corners equally round, or specify up to four values (top‑left, top‑right, bottom‑right, bottom‑left) for unique shapes. It’s essential for modern web design, turning sharp rectangles into soft, friendly containers.
How to Use the Border Radius Generator
- Drag the sliders for each corner (Top‑Left, Top‑Right, Bottom‑Right, Bottom‑Left). The preview updates instantly.
- Keep corners linked (default) to make all corners the same, or uncheck to set each one differently.
- Copy the code – The CSS output appears in the code box; click "Copy CSS" to grab the exact
border-radiusdeclaration. - Paste into your stylesheet and apply to any HTML element (buttons, cards, images, etc.).
Common Border Radius Examples
- Uniform rounded corners –
border-radius: 20px;(all corners equal) - Pill shape (buttons) –
border-radius: 50px;(often used withheight: 50pxand padding) - Circle –
border-radius: 50%;when width and height are equal (e.g.,100px × 100px) - Asymmetric corners –
border-radius: 10px 40px 10px 40px;(top‑left & bottom‑right small, the others large) - Leaf / organic shape –
border-radius: 80% 0 80% 0;using percentages to curve only some corners drastically.
Why Use a Border Radius Generator?
- Save time – No need to guess values in CSS; see the effect live.
- Visual precision – Fine‑tune each corner independently for creative UI elements.
- Learn CSS – Instantly see how the shorthand syntax works with one, two, three, or four values.
- Free & offline – No sign‑up, works even after page load without internet.
- Responsive & touch‑friendly – Sliders adapt to any screen size.
Frequently Asked Questions
What is the CSS Border Radius Generator?
It’s a free online tool that visually generates CSS border-radius values. You can adjust all four corners (or each individually) and get the precise CSS code to make rounded corners on any element.
How do I use the border radius generator?
Use the sliders to set the radius for top‑left, top‑right, bottom‑right, and bottom‑left corners. The preview updates in real time. Click 'Copy CSS' to copy the border-radius declaration to your clipboard.
Can I set each corner separately?
Yes, uncheck 'Link all corners' and you can define a different radius for each of the four corners.
What CSS does the generator output?
It outputs the standard CSS border-radius property. For example: border-radius: 20px 30px 40px 50px;
Is this tool free?
Absolutely. It’s 100% free, no sign‑up, no limits.
Does the tool work offline?
Yes, once the page is loaded, everything runs locally in your browser. You can continue using it even without internet.
Is my data kept private?
All processing happens on your device. No designs or code are sent to any server.
Can I use this on mobile?
Yes, the generator is fully responsive and touch‑friendly. Sliders work great on phones and tablets.
What does 'Link all corners' mean?
When enabled, all four corners share the same radius value. Disable it to set each corner independently for more creative shapes.
Can I create an ellipse or pill shape?
Yes, a radius of 50% (or a value equal to half the element's height) will create a pill or circle shape. The generator gives you exact pixel values.
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