HeroUI (formerly NextUI)
71 React components on React Aria + Tailwind v4, with an MCP server
Tier S · Best in classComponent LibraryPrimitiveRegistrynextui.org
HeroUI is the renamed successor to NextUI — nextui.org now 301-redirects to heroui.com. v3 is a full React component library built on React Aria Components and Tailwind CSS v4, shipping 71 documented web components plus a separate HeroUI Native set of 39 React Native components. It is aimed at teams who want a maintained, versioned dependency rather than copy-paste source, and it invests unusually hard in agent tooling: an MCP server, llms.txt, AGENTS.md, agent skills, and per-page Copy Prompt / Copy Markdown buttons.
npm i @heroui/styles @heroui/reactFor an agent
Reach for HeroUI over shadcn/ui when the project wants an upgradeable npm dependency instead of vendored source you must maintain — and over MUI when the codebase is already Tailwind v4. Install the HeroUI MCP server first; the docs expose llms.txt, AGENTS.md and Copy Prompt on every page, so you can generate correct v3 APIs without guessing. Two traps: v3 hard-requires React 19 and Tailwind v4, and v2/NextUI code will not compile against it — check the /migration docs before touching an existing NextUI app, and never import from `@nextui-org/*`.
Why it is here. One of the very few React libraries that treats AI agents as a first-class consumer, with an MCP server and machine-readable docs rather than a marketing page. The React Aria foundation means accessibility is inherited from Adobe's primitives instead of hand-rolled.
Facts
- License
- MIT, Apache 2.0
- Pricing
- Free, Open source, Freemium
- Framework
- React, Next.js, React Native
- Styling
- Tailwind CSS v4, CSS custom properties
- Distribution
- npm package, CLI installer, GitHub repository, MCP server, Figma file or kit
- Platform
- Web, iOS, Android, Cross-platform
- Content type
- Code, Design tokens / theme files, Figma / design source files
- Agent readiness
- MCP server, llms.txt, Agent skill or rules pack, Structured documentation, Ships a ready LLM prompt, CLI installable, Readable open source
- Accessibility
- Built on accessible primitives, Full ARIA pattern implemented, Keyboard navigable, Focus management and visible focus, RTL and i18n aware
- Maturity
- Actively maintained
- Pricing detail
- Core library free and open source. HeroUI Pro (components, templates, AI tooling) is a paid add-on; price not fetched.
- GitHub stars
- 30,400
- Package
- @heroui/react
Components it ships
71 totalHelps you build
10Notable for
- MCP server plus llms.txt and AGENTS.md
- Built on React Aria Components
- Tailwind CSS v4 / React 19 only
- 39-component React Native sibling
- Renamed from NextUI; old domain redirects
Provenance
Verified 2026-08-15. HTTP 301. https://nextui.org/ (301 -> heroui.com), https://heroui.com/, https://heroui.com/sitemap.xml (enumerated 71 react + 39 native component doc pages), https://heroui.com/en/docs/react/getting-started/quick-start, https://heroui.com/en/docs/react/getting-started, https://heroui.com/en/docs/react/getting-started/frameworks, https://github.com/heroui-inc/heroui
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