AlReader - Alreader.com - new perspective on reading e-books.

calibre - Ebook manager, viewer & converter

iReader - iReader is one of the most accomplished ways to read the books right from your smartphones.

Apple Books - The all-new Apple Books has been redesigned to make finding, reading, and listening to books a beautiful, effortless experience on iPhone and iPad.

Cool Reader - Fast and small cross-platform eBook reader for desktops and handheld devices

Open Library - The ultimate goal of the Open Library is to make all the published works of humankind available to...