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Description
CSS border radius generator with live preview. Set uniform or individual corners in px or %. Copy the CSS code in one click. CSS Border Radius Generator — Rounded Corner Creator Round any element perfectly with the visual CSS border radius generator. This border radius generator gives you a live preview of your rounded corners as you drag the sliders, so you can tune the border-radius CSS property without writing a single line of code. What is a border radius generator? A border radius generator is a visual tool for creating the CSS border-radius property. The border radius generator lets you set corner values interactively and immediately see what the result looks like. This border radius generator works inside Chrome, so it is available on any page from your toolbar. Two modes in this border radius generator The border radius generator offers two working modes: Uniform mode: Use a single slider in the border radius generator to round all four corners equally. The border radius generator outputs the compact single-value shorthand: border-radius: 20px. Individual mode: Control each corner separately in the border radius generator. The top-left, top-right, bottom-right and bottom-left sliders in the border radius generator let you create asymmetric shapes — pills, teardrops, squircles, and custom organic shapes. px and % units in the border radius generator The border radius generator supports both px and % units. Switch between them with one click in the border radius generator. Percentage-based values in the border radius generator are responsive, scaling proportionally with the element size. Fixed px values in the border radius generator give pixel-perfect control. Smart shorthand in the generator The generator automatically generates the shortest valid CSS shorthand. When all four corners match, the generator writes border-radius: 10px. When opposite corners match, the generator uses the two-value form. When all corners differ, the generator writes the full four-value form. You never need to think about shorthand — the generator handles it. Key features of the generator - Live preview square: See the shape update in real time as you drag sliders in the generator. - Uniform mode with one slider: Fastest way to add rounded corners using the generator. - Individual mode with four sliders: Full control over every corner in the generator. - px / % unit selector: Switch units any time in the generator. - Smart CSS shorthand: The generator writes the most compact valid value. - One-click Copy CSS: Copy the border-radius declaration from the generator instantly. How to use the generator 1. Open the generator by clicking the icon in your Chrome toolbar. 2. Choose Uniform or Individual mode in the generator. 3. Drag the sliders in the generator to set corner values. 4. Select px or % in the generator. 5. Copy the CSS output from the generator and paste it into your stylesheet. Who uses a border radius generator? The generator is used by web developers, UI designers, prototypers, and CSS learners who work with rounded corners regularly. The generator replaces manual calculation and browser DevTools trial-and-error with immediate visual feedback. Practical use cases Buttons and pills: Set a large uniform value or 50% in the generator to turn any rectangle into a pill-shaped button. Avatars and profile images: A 50% radius on a square element produces a perfect circle — a one-slider job in the generator. Cards and modals: Small uniform values (8–16 px) from the generator give interfaces a modern, soft look without losing structure. Organic shapes: Individual mode with contrasting corner values creates leaf shapes, teardrops, and asymmetric decorative blocks for hero sections. Works with every CSS workflow The output of the generator is standard CSS that works in every modern browser and framework — plain HTML/CSS, Tailwind, Bootstrap, Sass, CSS Modules, Styled Components. Copy from the generator and paste it wherever your styles live. 100% local and private The generator runs entirely in your browser. Nothing is sent to any server. The generator does not collect data, does not need a login, and works offline. Install the generator once and use it from any tab.