calibre screenshots

Organizes and converts ebooks from a format to another and for multiple devices
Main Window
calibre 3.7 : Main Window

Alternative downloads

Icecream Ebook Reader
Works with EPUB, MOBI, FB2, PDF, CBR, CBZ ebooks.
Epub Reader for Windows
Simple utility to read EPUB e-books with some conversion capabilities.
All My Books
Catalog your books and display statistics of the collection.