Ark is a headless component library that provides unstyled, accessible UI components for building design systems across React, Vue, Solid, and Svelte.
The library solves the problem of maintaining consistent, accessible component behavior across multiple frameworks without duplicating logic. It achieves this by building on Zag.js finite state machines, which provide framework-agnostic component logic with identical APIs across all supported frameworks. Each component is completely unstyled, allowing developers to apply styling through their choice of CSS-in-JS, Tailwind, vanilla CSS, or any other styling solution. The components include proper ARIA attributes, keyboard navigation, focus management, and screen reader support out of the box.
Teams building design systems that need to support multiple frameworks should consider this tool, particularly those prioritizing accessibility compliance and styling flexibility. The project suits organizations that want to write component logic once and deploy it across React, Vue, Solid, and Svelte without maintaining separate implementations. The library includes over 45 production-ready components covering layout, navigation, forms, and other common UI patterns. It differs from styled component libraries by offering zero styling opinions, making it compatible with any design system approach rather than enforcing a particular visual direction.
The project maintains active development with regular component additions and refinements to the state machine architecture. The maintainers respond to community contributions and maintain comprehensive documentation including interactive examples for each framework. Development focuses on expanding the component library while preserving API consistency across all supported frameworks.
