Key features and highlights
Radix UI is a set of unstyled, accessibility-first UI primitives for React. It encapsulates complex interactions, keyboard logic, focus management, and ARIA semantics into composable low-level components. It supports controlled/uncontrolled modes, TypeScript, and SSR, making it easy to use within any design system.
Use cases and target users
- Front-end teams building design systems and component libraries
- Product interfaces and interactive components that need consistent accessible behavior
- Developers who want to customize visuals while reusing reliable interaction logic
Key benefits & highlights
- Accessibility-first: built-in ARIA and keyboard support, reducing the effort to implement accessibility
- Unstyled and customizable: provides behavior and semantics only, letting you implement styles freely (supports
css-in-js, etc.) - Highly composable: primitives are designed for extension and reuse, suitable for building complex components
- TypeScript types and a stable API, facilitating team collaboration and long-term maintenance