---
source_url: "https://docs.bookfusion.com/docs/Calibre/"
title: "Calibre Integration | BookFusion"
mirrored_at: 2026-08-14T01:03:19.314Z
host: docs.bookfusion.com
cited_in_42a: true
mirror_canonical: "https://index.42a.ai/docs.bookfusion.com/docs/Calibre/index"
---

> **Original source:** https://docs.bookfusion.com/docs/Calibre/

![Calibre Overview](https://docs.bookfusion.com/images/calibre-overview.png)

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## What is Calibre?[​](#what-is-calibre "Direct link to What is Calibre?")

[Calibre](https://calibre-ebook.com/) is a free, open-source eBook management application used by millions of readers to organize, convert, and manage their personal libraries. BookFusion's official Calibre plugin bridges your desktop collection with the cloud, so you never have to manually upload books again.

Already have Calibre installed?

Jump straight to the **[plugin setup guide](https://docs.bookfusion.com/docs/Calibre/calibre-plugin)** — it takes less than 5 minutes to configure.

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## How It Works[​](#how-it-works "Direct link to How It Works")

```
Your Calibre Library  →  BookFusion Plugin  →  BookFusion Cloud  →  All Your Devices
```

The plugin runs inside Calibre and communicates with your BookFusion account via a secure API key. When you trigger a sync, it uploads new or updated books and metadata — keeping everything consistent across web, iOS, and Android.

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## Key Benefits[​](#key-benefits "Direct link to Key Benefits")

Feature

Details

📚 **Bulk sync**

Upload your entire Calibre library in one click

🔄 **Two-way progress sync**

Reading position updates across all devices

🖊️ **Highlights & annotations**

Preserved and accessible everywhere

🏷️ **Metadata preserved**

Tags, series, authors, and covers carry over

🔒 **Secure**

Uses your personal API key — no password sharing

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## Requirements[​](#requirements "Direct link to Requirements")

Before getting started, make sure you have:

-   **Calibre 5.0 or later** installed on your computer ([download here](https://calibre-ebook.com/download))
-   A **BookFusion account** (free or paid)
-   Your **BookFusion API key** (found in your account settings)

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## Available Guides[​](#available-guides "Direct link to Available Guides")

### 🔌 Installing & Using the BookFusion Plugin for Calibre[​](#-installing--using-the-bookfusion-plugin-for-calibre "Direct link to 🔌 Installing & Using the BookFusion Plugin for Calibre")

Set up the Calibre plugin, configure your API key, and start syncing your library.

[**Get Started →**](https://docs.bookfusion.com/docs/Calibre/calibre-plugin)

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### 🏷️ Using a Custom Column to Indicate a Book's Sync Status[​](#️-using-a-custom-column-to-indicate-a-books-sync-status "Direct link to 🏷️ Using a Custom Column to Indicate a Book's Sync Status")

Track which books have been synced to BookFusion directly inside Calibre using a dedicated custom column.

[**Learn More →**](https://docs.bookfusion.com/docs/Calibre/calibre-sync-status-column)

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### 📂 Configuring Custom Columns to Sync Bookshelves and Series Info[​](#-configuring-custom-columns-to-sync-bookshelves-and-series-info "Direct link to 📂 Configuring Custom Columns to Sync Bookshelves and Series Info")

Map your Calibre custom columns to BookFusion bookshelves and series metadata for a richer, more organized library.

[**Learn More →**](https://docs.bookfusion.com/docs/Calibre/calibre-custom-columns)

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### 🔁 Syncing eBook Updates to BookFusion[​](#-syncing-ebook-updates-to-bookfusion "Direct link to 🔁 Syncing eBook Updates to BookFusion")

Keep your BookFusion library up to date when you edit or replace books in Calibre — covers, metadata changes, and new file versions included.

[**Learn More →**](https://docs.bookfusion.com/docs/Calibre/calibre-sync-ebook-updates)

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## Need Help?[​](#need-help "Direct link to Need Help?")

If you run into any issues during setup or sync reach out to [support@bookfusion.com](mailto:support@bookfusion.com)