{
  "slug": "sing-box",
  "category": "proxies",
  "name": "sing-box",
  "description": "Universal proxy platform that supports Shadowsocks, VLESS, Trojan, Hysteria 2, WireGuard and other protocols with rule-based routing, available as a command-line core and official graphical clients.",
  "website": "https://sing-box.sagernet.org",
  "source": "https://github.com/SagerNet/sing-box",
  "license": null,
  "platforms": [
    "windows",
    "macos",
    "linux",
    "android",
    "ios"
  ],
  "jurisdiction": null,
  "pick": false,
  "pick_reason": null,
  "disclosure": null,
  "grade": "B",
  "score": 80,
  "coverage": 100,
  "summary": "sing-box scores 80 out of 100 (grade B) on the proxies 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.",
  "url": "https://privacyratings.com/proxies/sing-box/",
  "markdown": "https://privacyratings.com/proxies/sing-box/index.md",
  "answers": {
    "open_source": {
      "title": "Open source",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://github.com/SagerNet/sing-box/blob/testing/LICENSE",
      "note": "GPL-3.0-or-later, with an added restriction on use of the project name."
    },
    "no_trackers": {
      "title": "No trackers or telemetry",
      "weight": 3,
      "answer": "yes",
      "evidence": "https://sing-box.sagernet.org/clients/privacy/",
      "note": "The privacy policy states the software and official clients do not collect or share personal data, and Exodus finds no trackers in the Android app."
    },
    "no_ads": {
      "title": "No ads or data sales",
      "weight": 2,
      "answer": "yes",
      "evidence": "https://sing-box.sagernet.org/sponsors/",
      "note": "Free project supported by sponsors, with no ads or data sales."
    },
    "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": [
      {
        "name": "Cloudflare Web Analytics",
        "host": "static.cloudflareinsights.com",
        "effect": "partial"
      },
      {
        "name": "Google Fonts",
        "host": "fonts.gstatic.com",
        "effect": "none"
      }
    ],
    "tested_at": "2026-10-01T06:38:30.480Z"
  },
  "last_modified": "2026-10-01T06:56:31Z"
}