Calibre 8.4.0

kovidgoyal.net – Freeware – Windows Mac
out of 269 votes

Latest Version
8.4.0 Safe to install

Organize and manage your e-book library with ease using Calibre.

Minh Ong

05/30/2025

Calibre is a powerful software application that allows you to easily manage and organize your e-book collection.

Ultimate E-Book Management with Calibre: Your All-in-One Digital Library Solution

Calibre by kovidgoyal.net is a powerful, open-source e-book management software designed for readers, authors, and publishers alike. As a comprehensive platform, it simplifies organizing, converting, editing, and syncing your digital library across multiple devices and formats, making it an indispensable tool for any e-book enthusiast.

Key Features of Calibre

Robust E-Book Library Management: Effortlessly organize your collection with advanced categorization, tagging, and search functionalities to keep your e-books neatly arranged and easily accessible.
Seamless Format Conversion: Convert e-books between EPUB, MOBI, PDF, and other formats to ensure compatibility with all your preferred e-reader devices and platforms.
Intuitive E-Book Editing: Customize metadata, covers, and formatting details directly within Calibre to personalize your reading materials before sharing or reading.
Device Syncing Made Easy: Synchronize your entire e-book library across multiple devices including e-readers, tablets, and smartphones for a seamless reading experience anywhere.
Automatic Metadata Management: Enhance your collection with automatically fetched metadata or manually edit details like titles, authors, and descriptions for better organization.
Built-in E-Book Viewer: Read your e-books directly within Calibre with customizable settings that support various formats for a comfortable reading experience.
News Fetching and Conversion: Subscribe to news sources or RSS feeds to download articles and convert them into e-book format for offline reading on the go.

Why Choose Calibre?

Designed for ease of use and versatility, Calibre offers an all-encompassing solution for managing digital libraries. Whether you are organizing a personal collection, preparing books for publication, or simply enjoying reading on different devices, Calibre's extensive features meet all your needs efficiently. Its open-source nature ensures continuous updates and community support, making it a reliable companion in the world of digital reading.

Overview

Calibre is a Freeware software in the category Miscellaneous developed by kovidgoyal.net.

The users of our client application UpdateStar have checked Calibre for updates 11,153 times during the last month.

The latest version of Calibre is 8.4.0, released on 05/09/2025. It was initially added to our database on 07/23/2008. The most prevalent version is 8.4.0, which is used by 38% of all installations.

Calibre runs on the following operating systems: Windows/Mac.

Users of Calibre gave it a rating of 4 out of 5 stars.

Pros

Calibre is a free and open-source e-book management tool, helping users organize their e-book collection.
Supports a wide range of e-book formats, including EPUB, MOBI, PDF, and more.
Allows for easy transfer of e-books to e-readers and mobile devices.
Enables users to convert e-books from one format to another.
Includes features for editing metadata and covers of the e-books.
Has a built-in e-book viewer for reading e-books directly within the application.

Cons

The user interface can be overwhelming for new users due to the numerous features and options available.
Some users may find the initial set up process to be complex or confusing.
Performance can be slow when dealing with a large number of e-books in the library.
The design and layout of the application may feel outdated compared to other modern software interfaces.

FAQ

What is Calibre?

Calibre is a free and open source e-book manager that allows you to organize, edit, and read your e-books in various formats.

Which operating systems does Calibre support?

Calibre runs on Windows, macOS, and Linux. It also has a portable version that can be run from a USB drive.

What e-book formats does Calibre support?

Calibre supports a wide range of e-book formats including EPUB, MOBI, AZW3, PDF, and many more.

Can I convert e-books to different formats using Calibre?

Yes, Calibre comes with a powerful e-book conversion tool that allows you to convert files from one e-book format to another.

Does Calibre have a feature to sync e-books between devices?

Yes, Calibre can sync your e-books between different devices using its built-in content server or by connecting to remote servers such as Dropbox.

Is Calibre safe to use?

Yes, Calibre is a reputable program that has been around for over a decade. However, as with any software, it is always recommended to download it from the official website and make sure to keep it updated.

Can I customize the interface of Calibre?

Yes, Calibre allows you to customize its interface in various ways including changing the colors, fonts, and layout to your preferences.

Is Calibre only for e-books?

Calibre is primarily designed for managing e-books, but it can also handle other types of digital content including RSS feeds, news articles, and even music files.

Can I add my own metadata to e-books using Calibre?

Yes, Calibre allows you to add custom metadata to your e-books such as descriptions, tags, ratings, and more.

Is Calibre completely free to use?

Yes, Calibre is free and open source software. However, if you find it useful, you can donate to support its development.

Minh Ong

I'm Minh, a software engineer and author with a passion for exploring and writing about the latest in software and technology. With my experience in software development and a specialization in software updates and content creation, I bring a deep understanding of the tech landscape to my reviews and articles. My focus is on providing you with comprehensive insights into general software topics and the latest industry news.

Latest Reviews by Minh Ong

Installations

11,153 users of UpdateStar had Calibre installed last month.

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