{
  "slug": "nixos",
  "category": "desktop-operating-systems",
  "name": "NixOS",
  "description": "A Linux distribution built on the Nix package manager, where the whole system is configured declaratively and upgrades can be rolled back.",
  "website": "https://nixos.org",
  "source": "https://github.com/NixOS/nixpkgs",
  "license": "MIT",
  "platforms": [
    "linux"
  ],
  "jurisdiction": {
    "code": "NL",
    "name": "Netherlands",
    "eyes": "Nine Eyes",
    "eu": true,
    "gdpr": true,
    "cloud_act": null
  },
  "pick": false,
  "pick_reason": null,
  "disclosure": null,
  "grade": "B",
  "score": 80,
  "coverage": 100,
  "summary": "NixOS scores 80 out of 100 (grade B) on the desktop operating systems criteria. It meets 3 of 4 criteria: open source, no trackers or telemetry and no ads or data sales. It does not meet independent audit. It is based in the Netherlands: Nine Eyes member; EU member (GDPR).",
  "url": "https://privacyratings.com/desktop-operating-systems/nixos/",
  "markdown": "https://privacyratings.com/desktop-operating-systems/nixos/index.md",
  "answers": {
    "open_source": {
      "title": "Open source",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://raw.githubusercontent.com/NixOS/nixpkgs/master/COPYING",
      "note": "Nixpkgs and NixOS are MIT-licensed; packaged software keeps its own licenses."
    },
    "no_trackers": {
      "title": "No trackers or telemetry",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://nixos.org/privacy/",
      "note": "The privacy policy lists only server logs, with no analytics on the website and no telemetry in the operating system."
    },
    "no_ads": {
      "title": "No ads or data sales",
      "weight": 2,
      "answer": "yes",
      "evidence": "https://nixos.org/backing/",
      "note": "Funded by donations and sponsorships to the NixOS Foundation, with no ads."
    },
    "independent_audit": {
      "title": "Independent audit",
      "weight": 2,
      "answer": "no",
      "evidence": null,
      "note": "No independent audit is published."
    },
    "transparency_report": {
      "title": "Transparency report",
      "weight": 2,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "user_notice": {
      "title": "Tells users about requests",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "tls": {
      "title": "TLS configuration",
      "weight": 2,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "security_headers": {
      "title": "Security headers",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    },
    "web_standards": {
      "title": "Modern web standards",
      "weight": 1,
      "answer": "n/a",
      "evidence": null,
      "note": "Only applies to hosted services with a website to test."
    }
  },
  "tests": {
    "ssllabs": null,
    "observatory": null,
    "internetnl_web": null,
    "internetnl_mail": null,
    "trackers": [],
    "tested_at": "2026-10-01T06:38:34.675Z"
  },
  "last_modified": "2026-10-01T06:56:31Z"
}