calibre - Ebook manager, viewer & converter
Sumatra PDF - Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.
Calibre Web - Calibre Web is a web app providing a clean interface for browsing, reading and downloading eBooks...
Amazon Kindle - Amazon Kindle software lets you read ebooks on your Kindle, iPhone, iPad, PC, Mac, BlackBerry, and...
Okular - Okular is a universal document viewer based developed by KDE.
Ubooquity - Ubooquity is a free, lightweight and easy-to-use home server for your comics and ebooks.