# radix-ui/primitives

Radix Primitives is an open-source UI component library for building high-quality, accessible design systems and web apps. Maintained by @workos.

Repository: https://github.com/radix-ui/primitives
Canonical: https://ross.abutalabs.com/products/primitives
Homepage: https://radix-ui.com/primitives
Language: TypeScript
License: MIT
License Family: permissive
Topics: ui, ui-components, ui-kit, design-systems, accessibility, react, component-library, radix-ui, colors
Last push: 2026-08-08T16:39:51+00:00

## Health v2 (maintenance only)
Score: 75/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 96, release rhythm 35, longevity 100
- inputs: {"age_days": 2266, "days_push": 25, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 19213, forks 1233 (observed 2026-08-28T04:11:27.522338+00:00)

## What it is
Radix Primitives is an open-source, unstyled React UI component library focused on accessibility, customization, and developer experience. It provides low-level building blocks like dialogs, dropdown menus, popovers, and tooltips that follow WAI-ARIA design patterns and can serve as the base layer of a design system.

## Use cases
- build accessible react components
- create a design system from scratch
- add accessible dialogs and popovers to a react app
- headless ui components with full styling control
- wai-aria compliant dropdown menus and tooltips
- unstyled component primitives for tailwind or css modules
- keyboard navigation and focus management for custom widgets

## When to choose
- you need accessible React components that follow WAI-ARIA patterns without building them yourself
- you want full control over styling with any CSS solution
- you are building a custom design system and need a solid base layer
- you want to adopt components incrementally into an existing app

## When to avoid
- you need pre-styled, ready-to-use components out of the box
- your project does not use React
- you want a full component kit with themes and visual design included

## Facets
- artifact type: library
- maturity: active
- function: ui-components, frontend-framework, accessibility
- domain: web-development, frontend, accessibility, web-design
- platform: cross-platform
- tags: react, design-systems, unstyled-components, wai-aria, component-library, headless-ui, web-server, nodejs

## Member repositories
- radix-ui/primitives (main) score 75

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:27.522338+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:00:24.325557+00:00, confidence not recorded.
  - readme: https://github.com/radix-ui/primitives (fetched 2026-08-28T04:11:27.522338+00:00, sha 20cbda0a49f1)
  - homepage: https://radix-ui.com/primitives (fetched 2026-08-29T07:59:05.401863+00:00, sha b535514316c9)
  - site_page: https://www.radix-ui.com/primitives/docs/overview/accessibility (fetched 2026-08-29T07:59:05.418661+00:00, sha 9727cc7285d0)
  - site_page: https://www.radix-ui.com/primitives/docs/overview/releases (fetched 2026-08-29T07:59:05.420335+00:00, sha 834e27c9f2e6)
  - site_page: https://www.radix-ui.com/primitives/docs/overview/getting-started (fetched 2026-08-29T07:59:05.415305+00:00, sha 36efff3dd10b)
  - site_page: https://www.radix-ui.com/primitives/docs/guides/styling (fetched 2026-08-29T07:59:05.417060+00:00, sha 15b49a0dd3a4)
  - site_page: https://www.radix-ui.com/primitives/docs (fetched 2026-08-29T07:59:05.411584+00:00, sha 48e46e3d2fc5)
  - site_page: https://www.radix-ui.com/primitives/docs/overview/introduction (fetched 2026-08-29T07:59:05.413591+00:00, sha a22e35e656d0)
- Data as of 2026-08-30T08:39:29.467469+00:00.