{
  "slug": "turbopack",
  "category": "build-tools",
  "name": "Turbopack",
  "description": "Incremental bundler written in Rust and built into Next.js, used by the Next.js development server and production builds.",
  "website": "https://nextjs.org/docs/app/api-reference/turbopack",
  "source": "https://github.com/vercel/next.js",
  "license": "MIT",
  "platforms": [
    "windows",
    "macos",
    "linux"
  ],
  "jurisdiction": {
    "code": "US",
    "name": "United States",
    "eyes": "Five Eyes",
    "eu": false,
    "gdpr": false,
    "cloud_act": "provider"
  },
  "pick": false,
  "pick_reason": null,
  "disclosure": null,
  "grade": "D",
  "score": 40,
  "coverage": 100,
  "summary": "Turbopack scores 40 out of 100 (grade D) on the bundlers and build tools criteria. It meets 1 of 4 criteria: open source. It partly meets no ads or data sales. It does not meet no trackers or telemetry and independent audit. It is based in the United States: Five Eyes member; subject to the US CLOUD Act.",
  "url": "https://privacyratings.com/build-tools/turbopack/",
  "markdown": "https://privacyratings.com/build-tools/turbopack/index.md",
  "answers": {
    "open_source": {
      "title": "Open source",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://github.com/vercel/next.js/blob/canary/license.md",
      "note": "MIT, developed in the Next.js repository."
    },
    "no_trackers": {
      "title": "No trackers or telemetry",
      "weight": 3,
      "answer": "no",
      "evidence": "https://vercel.com/legal/privacy-notice",
      "note": "Next.js sends anonymous usage telemetry by default with an opt-out, and the Vercel privacy notice says its sites use cookies for analytics and targeted advertising."
    },
    "no_ads": {
      "title": "No ads or data sales",
      "weight": 2,
      "answer": "partial",
      "evidence": "https://vercel.com/legal/privacy-notice",
      "note": "Free software with no ads, but Vercel shares site data with advertising networks to promote its own services."
    },
    "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": "2026-10-01T07:01:47.459Z"
  },
  "last_modified": "2026-10-01T07:44:20Z"
}