Border Radius Architect
Create perfect rounded corners for your UI components with professional-grade precision and real-time visualization.
border-radius: 20px;Individual Logic
Toggle between uniform radius for all corners or fine-tune each specific corner for asymmetric, organic shapes.
Real-time Synthesis
See your architectural changes instantly in the high-contrast preview window as you manipulate the geometric sliders.
Clean Deployment
Instantly export production-ready CSS properties that follow modern web development standards and shorthand conventions.
Privacy & Trust First
"In modern UI design, consistency is key. While it's tempting to use arbitrary pixel values, most professional design systems usage a 'base unit' (like 4px or 8px). For example, a small card might have an 8px radius, while a modal might have 16px. This tool helps you visualize these choices before committing them to code."
Corner Radius Design Guide
Generate CSS border-radius values with live previews for perfect rounded corners. This border radius generator runs in your browser for instant, precise UI styling.
Blazing fast
No server round-trips. No loading bars. Just instant results.
Locked-down privacy
Your data stays in your browser. Period.
Zero friction
Open the page and go. No accounts, no upsells, no clutter.
Built for people who value their time
The 30-second rundown
Drop it in
Paste text, upload a file, or enter your values.
Tweak if needed
Adjust a setting or two — most defaults just work.
Grab the result
Copy, download, or share. Done in seconds.
How This Works
Below is everything you need to get from zero to done. No fluff, just the steps and features that matter.
- 1Select 'Uniform All' to apply the same radius to every corner of your element.
- 2Toggle to 'Custom Specific' if you need to define different values for each corner.
- 3Use the sliders to increase or decrease the pixel value of the rounded corners.
- 4Observe the live visual preview to see how the shape transforms in real-time.
- 5Copy the generated 'CSS Property' and apply it to any HTML or React component.
- Asymmetrical Cornering: Create unique, non-uniform shapes by adjusting corners independently.
- High-Range Precision: Sliders allow calibration from 0px (sharp) to 200px (circular).
- Automatic Shorthand: The tool smartly generates optimized CSS based on your configuration.
- Visual Blueprint: See internal grid lines and spacing while designing your curves.
- Zero Latency Interface: Instant DOM updates for a smooth, lag-free design experience.
Real Ways People Use This
Button Styling
Create 'pill' shaped buttons (fully rounded) or softly rounded modern buttons for better click-through rates.
Card Components
Design harmonious container edges that soften the UI without making it look childish.
Avatar Images
Generate the perfect 50% border-radius to turn square profile photos into circles.
Input Fields
Match your form inputs to your buttons for a cohesive design language.
Making the Most of It
Good times to reach for this: Reach for Corner Radius Design Guide when you're verifying tokens, checking hashes, or handling anything sensitive. Your data stays on your machine — no risky pasting into random servers.
Typical flow:
- Toss your content into the input — text, file, or whatever you're working with.
- Dial in the settings that match what you actually need.
- Glance over the output to confirm it looks right.
- Grab your result: copy, download, or send it along.
Easy traps to avoid:
- Feeding in sloppy input and assuming the tool will magically sort out every edge case — always eyeball the output first.
- Testing with toy data that looks nothing like your real workload, then getting caught off-guard in production.
- Copy-pasting straight into a live project without a ten-second sanity check. That tiny pause saves hours of cleanup.
Your data stays yours: Your files never touch our servers for standard processing. They stay on your device from start to finish.
Questions That Usually Come Up
Dig Deeper
Want walkthroughs, deep-dives, and edge-case tips? The blog has you covered with practical tutorials written by people who actually use these tools.