Ebook. Download for Windows. About. 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 calibre manages your e-book collection for you. It is designed around the concept of the logical book, i.e., a single entry in your library that may correspond to actual e-book files in several formats.calibre can sort the books in your library by: Title, Author, Date added, Date published, Size, Rating, Series, etc. In addition, it supports extra searchable metadata: Tags: A flexible system for categorizing your collection however you like Comments: A long form entry that you can use for book description, notes, reviews, etc. About.