React Aria

React Aria is a collection of unstyled, accessible UI primitives and hooks for building robust and inclusive user interfaces in React. Unlike traditional component libraries that provide pre-styled components, React Aria offers a foundational layer of accessibility, interaction logic, and internationalization, allowing developers complete control over visual styling and DOM structure. The current stable version is 3.48.0, with new features and improvements released frequently, typically on a monthly or bi-monthly cadence. Its core differentiator lies in its 'headless' nature, focusing purely on standardized, accessible behavior by leveraging WAI-ARIA practices, making it an ideal choice for design systems that require highly customizable yet fully accessible components without opinionated styling.