UI Library

Is This Website Built With Radix UI?

Radix UI is an unstyled, accessibility-first React primitives library that underlies many modern design systems, including shadcn/ui — it provides the interaction logic and ARIA behavior for components like dialogs, dropdowns, and popovers, leaving all visual styling to the implementing site. Our engine detects it through 2 HTML patterns tied to its data-attribute and ARIA-state conventions, since Radix ships no distinctive bundled script signature of its own — detection relies entirely on the markup its primitives generate at runtime. Documented at radix-ui.com.

Detect Radix UI Websites — Free Tool

Enter any URL to check if it was built with Radix UI. Instant results, no account required.

How we detect Radix UI — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.

How to Detect Radix UI Websites

HTML Patterns

2 patterns

1. Check the Page Source

Open the website in your browser, right-click, and select "View Page Source". Search for radix ui-specific patterns in the HTML.

4. Use AI Website Detector (Easiest)

Our automated scanner checks all these signals at once and gives you an instant confidence score. Just enter any URL above.

Frequently Asked Questions

Is this website built with Radix UI?

You can detect if any website was built with Radix UI by using our free scanner above. Just enter the URL and we'll analyze HTML patterns, JavaScript files, CDN domains, and HTTP headers to determine if Radix UI was used — with a confidence score.

How to detect if a website was built with Radix UI?

There are several ways to detect Radix UI: (1) View the page source and look for Radix UI-specific class names or script URLs, (2) Check the Network tab in DevTools for requests to Radix UI CDN domains, (3) Use our free tool — we check 2 detection signals automatically.

What websites are built with Radix UI?

Radix UI is used by thousands of websites worldwide. Our scanner has detected many Radix UI-built sites across different industries. You can scan any URL to check if it uses Radix UI.

How accurate is the Radix UI detection?

Our Radix UI detection engine checks 2 unique fingerprint signals, achieving high confidence results. We score each match and return a confidence percentage so you know how certain the detection is.