GitPedia

Calibre

The official source code repository for the calibre ebook manager

From kovidgoyal·Updated June 20, 2026·View on GitHub·

calibre is an e-book manager. It can view, convert, edit and catalog e-books in all of the major e-book formats. It can also talk to e-book reader devices. It can go out to the internet and fetch metadata for your books. It can download newspapers and convert them into e-books for convenient reading. It is cross platform, running on Linux, Windows and macOS. The project is written primarily in Python, distributed under the GNU General Public License v3.0 license, first published in 2013. It has gained significant community traction with 25,102 stars and 2,622 forks on GitHub. Key topics include: calibre, ebook, ebook-formats, ebook-manager, ebook-reader.

Latest release: v9.9.0version 9.9.0
May 28, 2026View Changelog →

calibre

<img align="left" src="https://raw.githubusercontent.com/kovidgoyal/calibre/master/resources/images/lt.png" height="200" width="200"/>

calibre is an e-book manager. It can view, convert, edit and catalog e-books
in all of the major e-book formats. It can also talk to e-book reader
devices. It can go out to the internet and fetch metadata for your books.
It can download newspapers and convert them into e-books for convenient
reading. It is cross platform, running on Linux, Windows and macOS.

For more information, see the calibre About page.

Build Status

Screenshots

Screenshots page

Usage

See the User Manual.

Development

Setting up a development environment for calibre.

A tarball of the source code for the
current calibre release.

Bugs

Bug reports and feature requests should be made in the calibre bug tracker at Launchpad.
GitHub is only used for code hosting and pull requests.

Support calibre

calibre is a result of the efforts of many volunteers from all over the world.
If you find it useful, please consider contributing to support its development.
Donate to support calibre development.

Building calibre binaries

See Build instructions for instructions on how to build the
calibre binaries and installers for all the platforms calibre supports.

calibre package versions in various repositories

Packaging Status

Contributors

Showing top 12 contributors by commit count.

View all contributors on GitHub →

This article is auto-generated from kovidgoyal/calibre via the GitHub API.Last fetched: 6/20/2026