Calibre is a comprehensive e‑book management suite that enables users to build virtual libraries, convert between formats (like EPUB, MOBI, PDF), edit metadata, and sync with popular e‑readers. It features a built-in reader, content downloader, and robust plugin system, all wrapped in a user-friendly interface that supports Windows, macOS, and Linux. With over 15 years of development and millions of active users, it’s a trusted tool for book lovers and digital librarians alike.
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Calibre is a leading open-source e-book management suite that empowers users to organize, convert, and enjoy their digital libraries with ease. Designed for book lovers and digital librarians, Calibre provides a full-featured solution for managing e-books across various formats and devices, making it an essential tool for any reading enthusiast.
With support for popular e-book formats such as EPUB, MOBI, AZW3, and PDF, Calibre allows users to convert between formats effortlessly—ensuring compatibility with virtually any e-reader. Its built-in metadata editor helps maintain a well-organized library, letting users update book covers, author details, descriptions, and more.
Calibre supports Windows, macOS, and Linux operating systems, and integrates smoothly with leading e-readers like Kindle, Kobo, and Nook. Whether you're syncing your collection, downloading news via the content server, or using the built-in reader, Calibre delivers a consistent, user-friendly experience across platforms.
With over 15 years of active development and millions of global users, Calibre remains the go-to software for e-book management. Its extensible plugin system and community-driven updates continue to enhance functionality, offering personalized tools and new features to meet evolving digital reading needs.