{
  "slug": "mui",
  "name": "MUI (Material UI)",
  "url": "https://mui.com/",
  "cat": "ui",
  "group": "design",
  "tagline": "Styled library + commercial data grid",
  "price": "Core free MIT · MUI X $299–$1,399/dev/yr",
  "tier": "mixed",
  "pick": false,
  "what": "Material Design implementation with 40+ components, styled with Emotion (runtime CSS-in-JS). MUI X is a separate commercial set — Data Grid, Pickers, Charts, Scheduler — with genuinely no free equivalent at the Premium tier.",
  "why": "One legitimate use: if you ever need a virtualized data grid with pivoting and Excel export for an internal editorial tool, install <b>only</b> <code>@mui/x-data-grid-premium</code> and leave the rest of MUI out.",
  "warn": "Emotion versus Tailwind means two styling systems, two theme sources of truth, and dark mode wired twice. Licence is per developer and MUI enforces it with console warnings and a watermark.",
  "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
}