{"adoption": {"forks": 698, "observed_at": "2026-08-28T04:08:18.567173+00:00", "stars": 3785}, "canonical_url": "https://ross.abutalabs.com/products/prefixfree", "card": {"archived": true, "artifact_type": "library", "description": "Break free from CSS prefix hell!", "domain": ["web-development", "frontend"], "enriched": true, "function": ["css-framework", "developer-tools"], "health_score": 10, "homepage": "http://projects.verou.me/prefixfree/", "language": "JavaScript", "license": "MIT", "license_family": "permissive", "maturity": "maintenance", "member_repos": ["LeaVerou/prefixfree"], "name": "LeaVerou/prefixfree", "platform": ["browser"], "pushed_at": "2021-10-13T20:37:47+00:00", "repo": "LeaVerou/prefixfree", "stars": 3785, "tags": ["css-vendor-prefixes", "browser-compatibility", "runtime-css-processing", "javascript", "web-server"], "topics": [], "urls": [], "use_cases": ["write unprefixed CSS3 properties without vendor prefixes", "automatically add -webkit- or -moz- prefixes at runtime", "support legacy browsers needing vendor prefixes for CSS3 features", "process inline style attributes for prefixing", "build custom CSS fixers with the StyleFix framework"], "what_it_is": "-prefix-free is a small (2KB gzipped) JavaScript library that lets developers write unprefixed CSS3 properties and automatically adds the current browser's vendor prefix at runtime, only when needed. It processes stylesheets, style elements, and style attributes behind the scenes and exposes StyleFix and PrefixFree APIs for plugin authors.", "when_to_avoid": ["modern projects targeting evergreen browsers where vendor prefixes are largely obsolete", "you prefer build-time autoprefixing tools like Autoprefixer over runtime processing", "you rely on @import-ed or cross-origin stylesheets, which are unsupported"], "when_to_choose": ["maintaining legacy sites targeting older browsers (IE9+, Firefox 3.5+) that require vendor prefixes", "you want to author clean, unprefixed CSS without a build step"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/prefixfree", "repo": "LeaVerou/prefixfree", "role": "main", "score": 10}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:08:18.567173+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T18:27:41.259600+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "51e22a09d90e7ec31dd876072f94d1c466227ccf5411c5b8498a6fc1a719a013", "fetched_at": "2026-08-28T04:08:18.567173+00:00", "kind": "readme", "missing": false, "url": "https://github.com/LeaVerou/prefixfree"}, {"content_hash": "3adfc9c8a3399162162669aef2383e021818d616aa2c0d5977405ad4ea1c8bd8", "fetched_at": "2026-08-29T09:22:22.438902+00:00", "kind": "homepage", "missing": false, "url": "http://projects.verou.me/prefixfree/"}, {"content_hash": "1368ea4512226b454dbb3117b3c1db904ef6d2b16bbde970f807b4eee491344a", "fetched_at": "2026-08-29T09:22:22.441727+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/prefixfree"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:08:18.567173+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T18:27:41.259600+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "51e22a09d90e7ec31dd876072f94d1c466227ccf5411c5b8498a6fc1a719a013", "fetched_at": "2026-08-28T04:08:18.567173+00:00", "kind": "readme", "missing": false, "url": "https://github.com/LeaVerou/prefixfree"}, {"content_hash": "3adfc9c8a3399162162669aef2383e021818d616aa2c0d5977405ad4ea1c8bd8", "fetched_at": "2026-08-29T09:22:22.438902+00:00", "kind": "homepage", "missing": false, "url": "http://projects.verou.me/prefixfree/"}, {"content_hash": "1368ea4512226b454dbb3117b3c1db904ef6d2b16bbde970f807b4eee491344a", "fetched_at": "2026-08-29T09:22:22.441727+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/prefixfree"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T18:27:41.259600+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "51e22a09d90e7ec31dd876072f94d1c466227ccf5411c5b8498a6fc1a719a013", "fetched_at": "2026-08-28T04:08:18.567173+00:00", "kind": "readme", "missing": false, "url": "https://github.com/LeaVerou/prefixfree"}, {"content_hash": "3adfc9c8a3399162162669aef2383e021818d616aa2c0d5977405ad4ea1c8bd8", "fetched_at": "2026-08-29T09:22:22.438902+00:00", "kind": "homepage", "missing": false, "url": "http://projects.verou.me/prefixfree/"}, {"content_hash": "1368ea4512226b454dbb3117b3c1db904ef6d2b16bbde970f807b4eee491344a", "fetched_at": "2026-08-29T09:22:22.441727+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/prefixfree"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:08:18.567173+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:08:18.567173+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:08:18.567173+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T18:27:41.259600+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "51e22a09d90e7ec31dd876072f94d1c466227ccf5411c5b8498a6fc1a719a013", "fetched_at": "2026-08-28T04:08:18.567173+00:00", "kind": "readme", "missing": false, "url": "https://github.com/LeaVerou/prefixfree"}, {"content_hash": "3adfc9c8a3399162162669aef2383e021818d616aa2c0d5977405ad4ea1c8bd8", "fetched_at": "2026-08-29T09:22:22.438902+00:00", "kind": "homepage", "missing": false, "url": "http://projects.verou.me/prefixfree/"}, {"content_hash": "1368ea4512226b454dbb3117b3c1db904ef6d2b16bbde970f807b4eee491344a", "fetched_at": "2026-08-29T09:22:22.441727+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/prefixfree"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:08:18.567173+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:08:18.567173+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T18:27:41.259600+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "51e22a09d90e7ec31dd876072f94d1c466227ccf5411c5b8498a6fc1a719a013", "fetched_at": "2026-08-28T04:08:18.567173+00:00", "kind": "readme", "missing": false, "url": "https://github.com/LeaVerou/prefixfree"}, {"content_hash": "3adfc9c8a3399162162669aef2383e021818d616aa2c0d5977405ad4ea1c8bd8", "fetched_at": "2026-08-29T09:22:22.438902+00:00", "kind": "homepage", "missing": false, "url": "http://projects.verou.me/prefixfree/"}, {"content_hash": "1368ea4512226b454dbb3117b3c1db904ef6d2b16bbde970f807b4eee491344a", "fetched_at": "2026-08-29T09:22:22.441727+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/prefixfree"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:08:18.567173+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:08:18.567173+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:08:18.567173+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T18:27:41.259600+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "51e22a09d90e7ec31dd876072f94d1c466227ccf5411c5b8498a6fc1a719a013", "fetched_at": "2026-08-28T04:08:18.567173+00:00", "kind": "readme", "missing": false, "url": "https://github.com/LeaVerou/prefixfree"}, {"content_hash": "3adfc9c8a3399162162669aef2383e021818d616aa2c0d5977405ad4ea1c8bd8", "fetched_at": "2026-08-29T09:22:22.438902+00:00", "kind": "homepage", "missing": false, "url": "http://projects.verou.me/prefixfree/"}, {"content_hash": "1368ea4512226b454dbb3117b3c1db904ef6d2b16bbde970f807b4eee491344a", "fetched_at": "2026-08-29T09:22:22.441727+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/prefixfree"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:08:18.567173+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:08:18.567173+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T18:27:41.259600+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "51e22a09d90e7ec31dd876072f94d1c466227ccf5411c5b8498a6fc1a719a013", "fetched_at": "2026-08-28T04:08:18.567173+00:00", "kind": "readme", "missing": false, "url": "https://github.com/LeaVerou/prefixfree"}, {"content_hash": "3adfc9c8a3399162162669aef2383e021818d616aa2c0d5977405ad4ea1c8bd8", "fetched_at": "2026-08-29T09:22:22.438902+00:00", "kind": "homepage", "missing": false, "url": "http://projects.verou.me/prefixfree/"}, {"content_hash": "1368ea4512226b454dbb3117b3c1db904ef6d2b16bbde970f807b4eee491344a", "fetched_at": "2026-08-29T09:22:22.441727+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/prefixfree"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T18:27:41.259600+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "51e22a09d90e7ec31dd876072f94d1c466227ccf5411c5b8498a6fc1a719a013", "fetched_at": "2026-08-28T04:08:18.567173+00:00", "kind": "readme", "missing": false, "url": "https://github.com/LeaVerou/prefixfree"}, {"content_hash": "3adfc9c8a3399162162669aef2383e021818d616aa2c0d5977405ad4ea1c8bd8", "fetched_at": "2026-08-29T09:22:22.438902+00:00", "kind": "homepage", "missing": false, "url": "http://projects.verou.me/prefixfree/"}, {"content_hash": "1368ea4512226b454dbb3117b3c1db904ef6d2b16bbde970f807b4eee491344a", "fetched_at": "2026-08-29T09:22:22.441727+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/prefixfree"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T18:27:41.259600+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "51e22a09d90e7ec31dd876072f94d1c466227ccf5411c5b8498a6fc1a719a013", "fetched_at": "2026-08-28T04:08:18.567173+00:00", "kind": "readme", "missing": false, "url": "https://github.com/LeaVerou/prefixfree"}, {"content_hash": "3adfc9c8a3399162162669aef2383e021818d616aa2c0d5977405ad4ea1c8bd8", "fetched_at": "2026-08-29T09:22:22.438902+00:00", "kind": "homepage", "missing": false, "url": "http://projects.verou.me/prefixfree/"}, {"content_hash": "1368ea4512226b454dbb3117b3c1db904ef6d2b16bbde970f807b4eee491344a", "fetched_at": "2026-08-29T09:22:22.441727+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/prefixfree"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T18:27:41.259600+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "51e22a09d90e7ec31dd876072f94d1c466227ccf5411c5b8498a6fc1a719a013", "fetched_at": "2026-08-28T04:08:18.567173+00:00", "kind": "readme", "missing": false, "url": "https://github.com/LeaVerou/prefixfree"}, {"content_hash": "3adfc9c8a3399162162669aef2383e021818d616aa2c0d5977405ad4ea1c8bd8", "fetched_at": "2026-08-29T09:22:22.438902+00:00", "kind": "homepage", "missing": false, "url": "http://projects.verou.me/prefixfree/"}, {"content_hash": "1368ea4512226b454dbb3117b3c1db904ef6d2b16bbde970f807b4eee491344a", "fetched_at": "2026-08-29T09:22:22.441727+00:00", "kind": "registry_npm", "missing": false, "url": "https://registry.npmjs.org/prefixfree"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 0, "longevity": 100, "rhythm": 35}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["no_releases", "archived"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 5440, "days_push": 1785, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 10, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}