calibre: Calibre (Ebook library manager) calibre: calibre: Calibre is a one stop solution to all your e-book needs. It is free, calibre: open source and cross-platform in design and works well on Linux, calibre: OS X and Windows. calibre is meant to be a complete e-library calibre: solution and thus includes library management, format conversion, calibre: news feeds to ebook conversion, as well as e-book reader sync calibre: features and an integrated e-book viewer. calibre: calibre: calibre: Package created by Niki Kovacs