calibre is a fantastic open source e-book manager. litebrary is a fork of calibre that will reduce the build to its core functions of being an e-book cataloger and reader. Support for obscure formats will be eliminated, as will fetching news from the Internet, buying books, or sharing. E-reader connectivity will be eliminated, as will the webserver. Support for plugins will be greatly reduced.
Instead of managing all of that, litebrary will focus on design and performance issues related to the core functions.
At this point, litebrary is just vaporware. There's a lot to cut out.
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 OS X.
For more information, see the calibre About page
See the User Manual
Setting up a development environment for calibre
A tarball of the source code for the current calibre release.
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.
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.