Calibre Web - Calibre Web is a web app providing a clean interface for browsing, reading and downloading eBooks...
NeeView - Display two images simultaneously
Komga - Media server for comics/mangas/BDs with API and OPDS support.
Soda PDF 3D Reader - Read any PDF document like a book using our patent pending 3D technology!
Ubooquity - Ubooquity is a free, lightweight and easy-to-use home server for your comics and ebooks.
ComiXed - ComiXed seeks to be the ultimate digital comic book management system.