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# 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](https://calibre-ebook.com/about).
[](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.
## calibre package versions in various repositories
[](https://repology.org/project/calibre/versions)
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