Calibre is an open source e-book library management application designed for the 21th century, for the digital world that were are living in right now. It lets users to manipulate digital books in any way possible. It helps users to easily read ebooks on their personal computer, convert ebooks from one format to another, create electronic books based on recipes of your very own ideas.

calibre is a free and open source e-book library management application developed by users of e-books for users of e-books. It has a cornucopia of features divided into the following main categories:

• Library Management
• E-book conversion
• Syncing to e-book reader devices
• Downloading news from the web and converting it into e-book form
• Comprehensive e-book viewer
• Content server for online access to your book collection
• E-book editor for the major e-book formats