TEBookConverter - Portable software for cloud, local, and portable USB drives
ReadEra - Read book files in EPUB, PDF, DOC, DOCX, RTF, TXT, DJVU, FB2, MOBI and CHM formats.
calibre - Ebook manager, viewer & converter
FullReader - FullReader app allows users to create a library of digital books, magazines, comics, and many other eBooks to play the translation of the desired book without much of a stretch.
Convertio - File Conversion in the Cloud
Voice Book Reader - Allows you to read aloud books PDF, EPUB, and text files. Free online book reader.