# 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](https://calibre-ebook.com/about) [![Build Status](https://github.com/kovidgoyal/calibre/workflows/Continuous%20Integration/badge.svg)](https://github.com/kovidgoyal/calibre/actions?query=workflow%3ACI) ## Screenshots [Screenshots page](https://calibre-ebook.com/demo) ## Usage See the [User Manual](https://manual.calibre-ebook.com) ## Development [Setting up a development environment for calibre](https://manual.calibre-ebook.com/develop.html) A [tarball of the source code](https://calibre-ebook.com/dist/src) for the current calibre release. ## Bugs Bug reports and feature requests should be made in the calibre bug tracker at [launchpad](https://bugs.launchpad.net/calibre). 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](https://calibre-ebook.com/donate). ## Building calibre binaries See [Build instructions](bypy/README.rst) for instructions on how to build the calibre binaries and installers for all the platforms calibre supports.