Radix UI

Unstyled, accessible React component primitives for building design systems.

Radix UI is an open-source library of unstyled, accessible React component primitives. Provides fully functional components (dialog, dropdown, tooltip, tabs, accordion, etc.) without any styling, letting developers apply their own design. The foundation behind shadcn/ui. WAI-ARIA compliant with keyboard navigation built in.

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About Radix UI

Radix UI provides a set of low-level, unstyled React components that handle complex accessibility patterns, keyboard interactions, and focus management. Unlike opinionated component libraries, Radix gives you the behavior and accessibility without any visual styling, making it ideal for custom design systems.

The library includes components for Dialog, Dropdown Menu, Context Menu, Tooltip, Popover, Tabs, Accordion, Radio Group, Toggle, Slider, Switch, Select, Navigation Menu, and more. Each component follows WAI-ARIA guidelines and includes full keyboard navigation support.

Radix UI is the foundation that shadcn/ui builds upon — shadcn/ui essentially provides pre-styled Radix components using Tailwind CSS. Radix is free and open source under the MIT license.

Pricing & Platform Specs

Pricing Summary

100% free and open-source under the MIT license. Radix UI (Primitives, Themes, Colors, Icons) is maintained by WorkOS with zero licensing fees, seat restrictions, or paywalled features for commercial and personal use.

full pricing breakdown →

Supported Platforms

React library. npm install. Works with any React project and styling solution.

Explore categories, tags & use cases

Use Cases

Frontend Prototyping Full-Stack Development

Alternatives

All Radix UI alternatives →

v0

Vercel's AI UI generator

Vercel's AI-powered UI generation tool that creates production-ready React and Next.js components from text or image prompts. Outputs clean code using shadcn/ui and Tailwind CSS, deployable to Vercel or copyable into existing projects. Supports iterative refinement through conversation, live browser preview, and generates accessible, responsive code. Ideal for rapidly prototyping landing pages, dashboards, forms, and UI components without manual setup.

freemium

Builder.io

Visual CMS and headless page builder

Builder.io is a visual development platform that lets teams create and optimize web and mobile content using a drag-and-drop editor that integrates directly with existing codebases and tech stacks (React, Next.js, Qwik, etc.). Empowers non-technical team members to publish and update digital experiences without waiting on developers. Includes headless CMS, A/B testing, and AI-powered Visual Copilot design-to-code.

freemium

Magic MCP

MCP server for AI-powered UI component generation

Magic MCP is an MCP server from 21st.dev that enables AI agents to generate polished UI components inspired by modern design engineering patterns. It gives coding agents access to a library of high-quality component templates and design patterns, accelerating frontend development through intelligent component scaffolding.

Open Source

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Side-by-Side Comparisons

Radix UI

shadcn/ui

Radix UI vs shadcn/ui: Headless Primitives or Copy-Paste Components for Your React UI Layer

Radix Primitives and shadcn/ui solve different layers of the React UI problem. Radix provides low-level, unstyled, accessible behavior that a design-system team styles and assembles itself. shadcn/ui distributes complete, styled component source into your repository and lets you choose the primitive base underneath it: Base UI is the current default, while Radix and React Aria are supported options. This comparison therefore asks whether your team should begin with raw primitives or with an open-code component system, not whether every shadcn/ui component is necessarily built on Radix.

Radix UIshadcn/ui

Community experience

Sources & verification

Radix UI Official Documentation & Repository

Sources checked: September 5, 2026
Content verified: September 6, 2026

Verification dates are editorial checks. Routine CMS saves and automatic updatedAt timestamps do not advance them.

FAQ

What is Radix UI?

Is Radix UI free?

Yes — Radix UI is open source and free to use. 100% free and open-source under the MIT license. Radix UI (Primitives, Themes, Colors, Icons) is maintained by WorkOS with zero licensing fees, seat restrictions, or paywalled features for commercial and personal use.

Is Radix UI open source?

Yes — Radix UI is open source.

Is Radix UI still maintained?

Yes — Radix UI is active. Its listing was last verified on September 6, 2026.

What are the best Radix UI alternatives?

The first editor-selected Radix UI alternatives are v0, Builder.io, Magic MCP.

Radix UI

About Radix UI

Pricing & Platform Specs

Pricing Summary

Supported Platforms

Categories

Tags

Use Cases

Alternatives

v0

Builder.io