Kovid Goyal e38f7f2346
Delay load various bits of the builtin formatter functions
This reduces import time of the module from 21ms to 1.5ms as measured
using python -X importtime

Note that translations are currently broken pending adding support for
ffml_translate() to the code generating the POT file.
2025-07-22 16:09:52 +05:30
2025-06-04 13:12:38 +05:30
...
2025-03-11 15:19:51 +05:30
2025-07-18 21:28:16 +05:30
2024-11-24 22:01:57 +05:30
2025-03-21 08:09:41 +05:30
...
2025-07-18 13:45:56 +05:30
2025-03-25 09:30:01 +01:00
2025-01-02 11:27:45 +02:00
2021-01-24 19:53:30 +09:00
2021-01-24 19:53:30 +09:00
2025-07-16 08:55:16 +02:00
2025-01-24 11:14:21 +01:00
2025-05-09 19:10:59 +05:30

calibre

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

Description
The official source code repository for the calibre ebook manager
Readme GPL-3.0 364 MiB
Languages
Python 92.5%
C 3.3%
C++ 3.1%
HTML 0.4%
Shell 0.2%
Other 0.2%