{
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  "@type": "SoftwareApplication",
  "@id": "https://www.nuanyue.com/software/readest/#software",
  "name": "Readest",
  "description": "Open-source ebook reader for EPUB, PDF, MOBI, AZW3, CBZ and more, with parallel reading and sync.",
  "url": "https://www.nuanyue.com/software/readest/",
  "mainEntityOfPage": "https://www.nuanyue.com/software/readest/",
  "operatingSystem": "macOS",
  "applicationCategory": "BusinessApplication",
  "sameAs": [
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    "https://github.com/readest/readest"
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  "softwareVersion": "0.12.10",
  "license": "AGPL-3.0",
  "offers": {
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    "price": "0",
    "priceCurrency": "USD"
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    "name": "Readest",
    "type": "SoftwareApplication",
    "entityType": "ebook reader",
    "description": "Open-source ebook reader for EPUB, PDF, MOBI, AZW3, CBZ and more, with parallel reading and sync.",
    "shortDescription": "Open-source ebook reader supporting EPUB, PDF, MOBI, AZW3 and more.",
    "answer": "Readest is an open-source ebook reader built with Next.js and Tauri v2, and described as a modern rewrite of Foliate. It reads EPUB, PDF, MOBI, KF8 (AZW3), FB2, CBZ, TXT, HTML and Markdown, and supports both scroll and paginated reading modes. It can read two books side by side in parallel read, sync progress and notes across macOS, Windows, Linux, Android, iOS and the web, and synchronise with Koreader devices. It is licensed AGPL-3.0.",
    "page": "https://www.nuanyue.com/software/readest/",
    "dataUrl": "https://www.nuanyue.com/data/software/readest.json",
    "categories": [
      "productivity"
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    "tags": [],
    "platform": [
      "macOS"
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    "architecture": [],
    "featured": false,
    "pricing": "open-source",
    "license": "AGPL-3.0",
    "currentVersion": "0.12.10",
    "releaseDate": "2026-08-10",
    "openSource": true,
    "website": "https://readest.com",
    "github": "https://github.com/readest/readest",
    "download": "https://github.com/readest/readest/releases/download/v0.12.10/Readest_0.12.10_universal.dmg",
    "features": [
      "Reads EPUB, PDF, MOBI, KF8 (AZW3), FB2, CBZ, TXT, HTML and Markdown",
      "Parallel read: two books side by side in a split-screen view",
      "Syncs book files, progress, notes and bookmarks across six platforms",
      "Synchronises reading progress and notes with Koreader devices",
      "Highlights, bookmarks and notes, plus full-text search across the shelf",
      "Read-along narration with EPUB 3 Media Overlays, or paired DRM-free MP3, M4A or M4B"
    ],
    "useCases": [
      "Reading two books side by side to compare translations or editions",
      "Keeping notes and highlights in step between a Mac and a Koreader device"
    ],
    "formats": [],
    "integrations": [],
    "pros": [
      {
        "text": "Reads nine formats — EPUB, PDF, MOBI, KF8 (AZW3), FB2, CBZ, TXT, HTML and Markdown — in one app.",
        "status": "verified",
        "source": "repository",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      },
      {
        "text": "Parallel read opens two books or documents side by side in a split-screen view.",
        "status": "verified",
        "source": "repository",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      },
      {
        "text": "Synchronises reading progress, notes and bookmarks with Koreader devices, which most readers do not offer.",
        "status": "verified",
        "source": "repository",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      },
      {
        "text": "Syncs across six platforms — macOS, Windows, Linux, Android, iOS and the web — including book files, not just progress.",
        "status": "verified",
        "source": "repository",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      }
    ],
    "cons": [
      {
        "text": "The version on offer is 0.12.10, so it is pre-1.0 software and the interface may still change.",
        "status": "verified",
        "source": "repository",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      },
      {
        "text": "Several headline features are still listed as building or planned rather than shipped — AI summarisation and handwriting annotations among them.",
        "status": "verified",
        "source": "repository",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      },
      {
        "text": "The formats it reads are DRM-free; a store-locked book will not open.",
        "status": "editorially-reviewed",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      }
    ],
    "whoIsItFor": [
      "Readers with a large mixed-format library who want one app for all of it",
      "People who read on several devices and want progress to follow them"
    ],
    "notFor": [
      "Readers who need DRM-protected books from a store — the formats listed are DRM-free"
    ],
    "limitations": [],
    "updates": [],
    "faq": [
      {
        "question": "Which formats does Readest support?",
        "answer": "EPUB, PDF, MOBI, KF8 (AZW3), FB2, CBZ, TXT, HTML and Markdown.",
        "status": "verified",
        "source": "repository",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      },
      {
        "question": "Is Readest free?",
        "answer": "Yes. It is open source under the AGPL-3.0 licence, with no account required to read local files.",
        "status": "verified",
        "source": "repository",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      },
      {
        "question": "Can I read two books at once?",
        "answer": "Yes. Parallel read opens two books or documents side by side in a split-screen view.",
        "status": "verified",
        "source": "repository",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      },
      {
        "question": "Does it work with a Koreader device?",
        "answer": "Yes. Readest synchronises reading progress, notes and bookmarks with Koreader devices.",
        "status": "verified",
        "source": "repository",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      }
    ],
    "relationships": [
      {
        "target": "koodo-reader",
        "type": "alternative",
        "reason": "Both are open-source readers covering many formats. Koodo Reader advertises over 15 formats; Readest lists nine and adds parallel read.",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      },
      {
        "target": "calibre",
        "type": "alternative",
        "reason": "Both handle a large ebook library. Calibre is a manager as much as a reader, with conversion tools; Readest is a reader first.",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      },
      {
        "target": "clearview",
        "type": "alternative",
        "reason": "Both open PDF, EPUB and MOBI on the Mac. Clearview also reads CHM; Readest reads CBZ, FB2 and Markdown instead.",
        "verifiedAt": "2026-10-16T00:00:00.000Z"
      }
    ],
    "sources": [
      {
        "id": "readest:official",
        "type": "official_website",
        "url": "https://readest.com",
        "title": "Readest — official website",
        "trustLevel": "B",
        "accessedAt": null
      },
      {
        "id": "readest:repository",
        "type": "github",
        "url": "https://github.com/readest/readest",
        "title": "Readest — source repository",
        "trustLevel": "D",
        "accessedAt": null
      }
    ],
    "claims": [
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        "id": "software:readest.isA",
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        "id": "software:readest.ownership",
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        "value": "Third-party product — not published by Nuanyue",
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        "id": "software:readest.currentVersion",
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    "lastUpdated": "2026-10-16T00:00:00.000Z",
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  }
}