{
  "slug": "coss-ui",
  "name": "coss ui (was Origin UI)",
  "url": "https://coss.com/ui",
  "cat": "ui",
  "group": "design",
  "tagline": "Base UI copy-paste components",
  "price": "Free / open source",
  "tier": "free",
  "pick": false,
  "what": "Origin UI has been rebranded to coss ui and rebuilt on <b>Base UI</b> primitives — now the design system of Cal.com. 50+ components in three layers (Primitives, Particles, Atoms), copy-paste, explicitly built 'for developers and AI'.",
  "why": "Its historic strength was a very large set of input, select, checkbox and slider variants that shadcn ships only one flavor of — useful for subscribe forms, submission portals and contributor onboarding.",
  "warn": "<b>Not the library you may be remembering.</b> Old Origin UI was 400+ Radix-flavored components; coss ui is a smaller, differently-architected Base UI library under new branding with some pieces still 'coming soon'. Verify the licence file on GitHub before commercial use.",
  "category": {
    "key": "ui",
    "name": "UI component libraries",
    "desc": "Component sources. Some are native to your stack, some will actively fight it.",
    "group": "design",
    "groupName": "Make it look right"
  },
  "freshness": null,
  "health": {
    "ok": true,
    "status_code": 200,
    "final_url": null,
    "checked_at": "2026-08-18T21:22:12.874+00:00"
  },
  "corrected_at": null,
  "upstream_changed_at": null
}