{
    "product": {
        "slug": "calibre",
        "name": "calibre",
        "kind": "app",
        "website": "https://calibre-ebook.com/",
        "page": "https://listme.name/software/calibre",
        "tagline": "Free e-book library manager with conversion and reading tools",
        "summary": "calibre is free e-book management software for Windows, macOS and Linux. It keeps an e-book library in one place, converts books between formats and reads them. The code is published under GPL-3.0.",
        "platforms": [
            "windows",
            "macos",
            "linux"
        ],
        "pricing": "open-source",
        "price_note": "Free and open source under GPL-3.0",
        "free_to_use": true,
        "open_source": true,
        "license": "GPL-3.0",
        "source": "https://github.com/kovidgoyal/calibre",
        "strengths": [
            "Free and open source under GPL-3.0",
            "Manages a personal library on the desktop",
            "Converts books between formats"
        ],
        "limits": [
            "No phone app, so reading on a phone needs another tool",
            "Desktop tool rather than a reading app"
        ],
        "checked": "2026-10-10",
        "connected_to_publisher": false,
        "overview": "calibre is e-book software that the project calls a one-stop solution for all e-book needs. It manages a library of books on your computer and converts books between e-book formats. It also includes a reader for opening books on the desktop.\n\nThe program runs on Windows, macOS and Linux, and its source is on GitHub under GPL-3.0. calibre is a desktop tool rather than a phone app, so it suits people who want to organize a large personal library and move books to other devices. Readers who want a simple reader on a phone may prefer Apple Books or KOReader.",
        "highlights": [
            "Library management",
            "Format conversion",
            "Metadata and covers",
            "Open source, GPL-3.0 licensed"
        ],
        "json": "https://listme.name/api/v1/products/calibre.json"
    },
    "rankings": [
        {
            "list": "ebook-reader-apps",
            "name": "Ebook reader apps",
            "page": "https://listme.name/best/ebook-reader-apps",
            "rank": 6,
            "of": 10,
            "score": 83,
            "verdict": "Free and open source library manager that converts books between formats on Windows, macOS and Linux. It is a desktop tool with no phone reading app, so it complements a reader rather than replacing one.",
            "best_for": "Managing and converting a large personal library"
        }
    ],
    "alternatives": [
        {
            "slug": "kindle",
            "name": "Kindle",
            "score": 90,
            "page": "https://listme.name/software/kindle"
        },
        {
            "slug": "apple-books",
            "name": "Apple Books",
            "score": 88,
            "page": "https://listme.name/software/apple-books"
        },
        {
            "slug": "readest",
            "name": "Readest",
            "score": 86.5,
            "page": "https://listme.name/software/readest"
        },
        {
            "slug": "koreader",
            "name": "KOReader",
            "score": 85,
            "page": "https://listme.name/software/koreader"
        },
        {
            "slug": "libby",
            "name": "Libby",
            "score": 84.5,
            "page": "https://listme.name/software/libby"
        },
        {
            "slug": "thorium-reader",
            "name": "Thorium Reader",
            "score": 80,
            "page": "https://listme.name/software/thorium-reader"
        },
        {
            "slug": "foliate",
            "name": "Foliate",
            "score": 79,
            "page": "https://listme.name/software/foliate"
        },
        {
            "slug": "fbreader",
            "name": "FBReader",
            "score": 78.5,
            "page": "https://listme.name/software/fbreader"
        },
        {
            "slug": "google-play-books",
            "name": "Google Play Books",
            "score": 77.5,
            "page": "https://listme.name/software/google-play-books"
        }
    ],
    "links": {
        "page": "https://listme.name/software/calibre",
        "markdown": "https://listme.name/software/calibre.md",
        "badge": "https://listme.name/badge/calibre.svg",
        "alternatives_page": "https://listme.name/alternatives/calibre",
        "alternatives_json": "https://listme.name/api/v1/alternatives/calibre.json"
    },
    "source": "https://listme.name",
    "license": "Free to read and cite with attribution to listme.name.",
    "docs": "https://listme.name/developers"
}