{"adoption": {"forks": 520, "observed_at": "2026-08-28T04:10:43.883196+00:00", "stars": 10729}, "canonical_url": "https://ross.abutalabs.com/products/base-ui", "card": {"archived": false, "artifact_type": "library", "description": "Unstyled UI components for building accessible web apps and design systems. From the creators of Radix, Floating UI, and Material UI.", "domain": ["web-development", "frontend", "accessibility", "web-design"], "enriched": true, "function": ["ui-components", "frontend-framework", "accessibility"], "health_score": 100, "homepage": "https://base-ui.com", "language": "TypeScript", "license": "MIT", "license_family": "permissive", "maturity": "active", "member_repos": ["mui/base-ui"], "name": "mui/base-ui", "platform": ["browser"], "pushed_at": "2026-08-26T11:28:00+00:00", "repo": "mui/base-ui", "stars": 10729, "tags": ["react", "unstyled-components", "wai-aria", "design-system", "headless-ui", "typescript", "nodejs", "web-server"], "topics": ["accessibility", "design-system", "react", "react-components", "wai-aria", "base-ui", "components", "ui"], "urls": [], "use_cases": ["build accessible react components", "create a custom design system", "headless ui components for react", "unstyled component library compatible with tailwind", "wai-aria compliant dialogs and popovers", "style my own ui primitives without visual opinions"], "what_it_is": "Base UI is an unstyled React component library for building accessible user interfaces and design systems, created by the makers of Radix, Floating UI, and Material UI. It provides composable, WAI-ARIA-compliant components with no bundled CSS, working with any styling solution such as Tailwind, CSS Modules, or CSS-in-JS.", "when_to_avoid": ["you want pre-styled, ready-to-use components out of the box", "your project isn't React-based", "you need a quick prototype without writing your own styles"], "when_to_choose": ["you need fully accessible React components with complete styling control", "you're building a design system or component library from scratch", "you want a tree-shakable, single-package library from an experienced team"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/base-ui", "repo": "mui/base-ui", "role": "main", "score": 91}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:10:43.883196+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T17:17:56.096917+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8122d231cd78683c8c36b12e97756de09a6705a3161d19f6455a7fa4f8c8dc3c", "fetched_at": "2026-08-28T04:10:43.883196+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mui/base-ui"}, {"content_hash": "cdbf309c3c7525e8033c0b63d45ffecf65067ebb7c95afbf8561c6600fd795a5", "fetched_at": "2026-08-29T08:17:26.549788+00:00", "kind": "homepage", "missing": false, "url": "https://base-ui.com"}, {"content_hash": "60d25e978ab64084905e18d5f535e46e0cff9e0ff126f153322f958c03dbf70c", "fetched_at": "2026-08-29T08:17:26.560226+00:00", "kind": "site_page", "missing": false, "url": "https://base-ui.com/react/overview/quick-start"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:10:43.883196+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T17:17:56.096917+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8122d231cd78683c8c36b12e97756de09a6705a3161d19f6455a7fa4f8c8dc3c", "fetched_at": "2026-08-28T04:10:43.883196+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mui/base-ui"}, {"content_hash": "cdbf309c3c7525e8033c0b63d45ffecf65067ebb7c95afbf8561c6600fd795a5", "fetched_at": "2026-08-29T08:17:26.549788+00:00", "kind": "homepage", "missing": false, "url": "https://base-ui.com"}, {"content_hash": "60d25e978ab64084905e18d5f535e46e0cff9e0ff126f153322f958c03dbf70c", "fetched_at": "2026-08-29T08:17:26.560226+00:00", "kind": "site_page", "missing": false, "url": "https://base-ui.com/react/overview/quick-start"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T17:17:56.096917+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8122d231cd78683c8c36b12e97756de09a6705a3161d19f6455a7fa4f8c8dc3c", "fetched_at": "2026-08-28T04:10:43.883196+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mui/base-ui"}, {"content_hash": "cdbf309c3c7525e8033c0b63d45ffecf65067ebb7c95afbf8561c6600fd795a5", "fetched_at": "2026-08-29T08:17:26.549788+00:00", "kind": "homepage", "missing": false, "url": "https://base-ui.com"}, {"content_hash": "60d25e978ab64084905e18d5f535e46e0cff9e0ff126f153322f958c03dbf70c", "fetched_at": "2026-08-29T08:17:26.560226+00:00", "kind": "site_page", "missing": false, "url": "https://base-ui.com/react/overview/quick-start"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:10:43.883196+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:10:43.883196+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:10:43.883196+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T17:17:56.096917+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8122d231cd78683c8c36b12e97756de09a6705a3161d19f6455a7fa4f8c8dc3c", "fetched_at": "2026-08-28T04:10:43.883196+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mui/base-ui"}, {"content_hash": "cdbf309c3c7525e8033c0b63d45ffecf65067ebb7c95afbf8561c6600fd795a5", "fetched_at": "2026-08-29T08:17:26.549788+00:00", "kind": "homepage", "missing": false, "url": "https://base-ui.com"}, {"content_hash": "60d25e978ab64084905e18d5f535e46e0cff9e0ff126f153322f958c03dbf70c", "fetched_at": "2026-08-29T08:17:26.560226+00:00", "kind": "site_page", "missing": false, "url": "https://base-ui.com/react/overview/quick-start"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:10:43.883196+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:10:43.883196+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T17:17:56.096917+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8122d231cd78683c8c36b12e97756de09a6705a3161d19f6455a7fa4f8c8dc3c", "fetched_at": "2026-08-28T04:10:43.883196+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mui/base-ui"}, {"content_hash": "cdbf309c3c7525e8033c0b63d45ffecf65067ebb7c95afbf8561c6600fd795a5", "fetched_at": "2026-08-29T08:17:26.549788+00:00", "kind": "homepage", "missing": false, "url": "https://base-ui.com"}, {"content_hash": "60d25e978ab64084905e18d5f535e46e0cff9e0ff126f153322f958c03dbf70c", "fetched_at": "2026-08-29T08:17:26.560226+00:00", "kind": "site_page", "missing": false, "url": "https://base-ui.com/react/overview/quick-start"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:10:43.883196+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:10:43.883196+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:10:43.883196+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T17:17:56.096917+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8122d231cd78683c8c36b12e97756de09a6705a3161d19f6455a7fa4f8c8dc3c", "fetched_at": "2026-08-28T04:10:43.883196+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mui/base-ui"}, {"content_hash": "cdbf309c3c7525e8033c0b63d45ffecf65067ebb7c95afbf8561c6600fd795a5", "fetched_at": "2026-08-29T08:17:26.549788+00:00", "kind": "homepage", "missing": false, "url": "https://base-ui.com"}, {"content_hash": "60d25e978ab64084905e18d5f535e46e0cff9e0ff126f153322f958c03dbf70c", "fetched_at": "2026-08-29T08:17:26.560226+00:00", "kind": "site_page", "missing": false, "url": "https://base-ui.com/react/overview/quick-start"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:10:43.883196+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:10:43.883196+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T17:17:56.096917+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8122d231cd78683c8c36b12e97756de09a6705a3161d19f6455a7fa4f8c8dc3c", "fetched_at": "2026-08-28T04:10:43.883196+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mui/base-ui"}, {"content_hash": "cdbf309c3c7525e8033c0b63d45ffecf65067ebb7c95afbf8561c6600fd795a5", "fetched_at": "2026-08-29T08:17:26.549788+00:00", "kind": "homepage", "missing": false, "url": "https://base-ui.com"}, {"content_hash": "60d25e978ab64084905e18d5f535e46e0cff9e0ff126f153322f958c03dbf70c", "fetched_at": "2026-08-29T08:17:26.560226+00:00", "kind": "site_page", "missing": false, "url": "https://base-ui.com/react/overview/quick-start"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T17:17:56.096917+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8122d231cd78683c8c36b12e97756de09a6705a3161d19f6455a7fa4f8c8dc3c", "fetched_at": "2026-08-28T04:10:43.883196+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mui/base-ui"}, {"content_hash": "cdbf309c3c7525e8033c0b63d45ffecf65067ebb7c95afbf8561c6600fd795a5", "fetched_at": "2026-08-29T08:17:26.549788+00:00", "kind": "homepage", "missing": false, "url": "https://base-ui.com"}, {"content_hash": "60d25e978ab64084905e18d5f535e46e0cff9e0ff126f153322f958c03dbf70c", "fetched_at": "2026-08-29T08:17:26.560226+00:00", "kind": "site_page", "missing": false, "url": "https://base-ui.com/react/overview/quick-start"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T17:17:56.096917+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8122d231cd78683c8c36b12e97756de09a6705a3161d19f6455a7fa4f8c8dc3c", "fetched_at": "2026-08-28T04:10:43.883196+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mui/base-ui"}, {"content_hash": "cdbf309c3c7525e8033c0b63d45ffecf65067ebb7c95afbf8561c6600fd795a5", "fetched_at": "2026-08-29T08:17:26.549788+00:00", "kind": "homepage", "missing": false, "url": "https://base-ui.com"}, {"content_hash": "60d25e978ab64084905e18d5f535e46e0cff9e0ff126f153322f958c03dbf70c", "fetched_at": "2026-08-29T08:17:26.560226+00:00", "kind": "site_page", "missing": false, "url": "https://base-ui.com/react/overview/quick-start"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T17:17:56.096917+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8122d231cd78683c8c36b12e97756de09a6705a3161d19f6455a7fa4f8c8dc3c", "fetched_at": "2026-08-28T04:10:43.883196+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mui/base-ui"}, {"content_hash": "cdbf309c3c7525e8033c0b63d45ffecf65067ebb7c95afbf8561c6600fd795a5", "fetched_at": "2026-08-29T08:17:26.549788+00:00", "kind": "homepage", "missing": false, "url": "https://base-ui.com"}, {"content_hash": "60d25e978ab64084905e18d5f535e46e0cff9e0ff126f153322f958c03dbf70c", "fetched_at": "2026-08-29T08:17:26.560226+00:00", "kind": "site_page", "missing": false, "url": "https://base-ui.com/react/overview/quick-start"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 99, "longevity": 65, "rhythm": 96}, "computed_at": "2026-09-02T17:46:02.011165+00:00", "flags": [], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 922, "days_push": 7, "days_rel": 29, "gap_med": 29.0, "n_releases_24m": 9}, "score": 91, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}