{
  "version": "2",
  "id": "https://freelancenews.online/news/privacy-first-architecture-for-web-tools-4230b8e3",
  "title": "Privacy-First Architecture for Web Tools",
  "summary": "Building web tools with a privacy-first architecture to keep user data secure",
  "body": "The author discusses a privacy-first architecture for building web tools that never see user data.\n\nThis approach ensures that data never leaves the browser, making it impossible to intercept, store, or breach.",
  "category": "dev",
  "language": "en",
  "datePublished": "2026-09-23T21:17:40.615Z",
  "dateModified": "2026-09-23T21:17:40.615Z",
  "eventDate": null,
  "sourcePublicationDate": "2026-09-21T22:20:05.000Z",
  "source": {
    "name": "dev.to",
    "url": "https://dev.to/eimza/privacy-first-architecture-building-web-tools-that-never-see-your-data-6d0",
    "kind": "community"
  },
  "practicalImpact": "This approach can be used to build secure web tools for processing sensitive documents, such as legal documents, without risking data breaches or leaks.",
  "limitations": "The implementation checklist and architecture pattern may require additional development and testing to ensure security and functionality.",
  "keyPoints": [
    "Data never leaves the browser",
    "No network calls for user data",
    "Use File.arrayBuffer() instead of FileReader",
    "Generate downloads with Blob + URL.createObjectURL",
    "Use navigator.clipboard for copy"
  ],
  "review": {
    "status": "source-reviewed",
    "checkedAt": "2026-09-23T21:17:40.615Z",
    "method": "Automated comparison against retrieved source text; not independent fact-checking.",
    "correctionNote": null
  },
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      "id": 1,
      "url": "https://dev.to/eimza/privacy-first-architecture-building-web-tools-that-never-see-your-data-6d0",
      "publisher": "dev.to",
      "title": "Privacy-First Architecture: Building Web Tools That Never See Your Data",
      "publishedAt": 1790029205000,
      "fetchedAt": 1790198245557,
      "hash": "acb20d04ca78a9588adde3dfabbd600bddab819b3aa5d4cc7257cc27df0e968d",
      "kind": "community"
    }
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  "claims": [
    {
      "claim": "Data never leaves the browser",
      "source": 1,
      "id": "claim-1",
      "url": "https://freelancenews.online/news/privacy-first-architecture-for-web-tools-4230b8e3#claim-1"
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    {
      "claim": "No fetch() / XMLHttpRequest for user data",
      "source": 1,
      "id": "claim-2",
      "url": "https://freelancenews.online/news/privacy-first-architecture-for-web-tools-4230b8e3#claim-2"
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    {
      "claim": "Use File.arrayBuffer() instead of FileReader",
      "source": 1,
      "id": "claim-3",
      "url": "https://freelancenews.online/news/privacy-first-architecture-for-web-tools-4230b8e3#claim-3"
    },
    {
      "claim": "Generate downloads with Blob + URL.createObjectURL",
      "source": 1,
      "id": "claim-4",
      "url": "https://freelancenews.online/news/privacy-first-architecture-for-web-tools-4230b8e3#claim-4"
    },
    {
      "claim": "Use navigator.clipboard for copy",
      "source": 1,
      "id": "claim-5",
      "url": "https://freelancenews.online/news/privacy-first-architecture-for-web-tools-4230b8e3#claim-5"
    }
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