二.Bookworm
You need to register to use the free services offered by the Bookworm website. After login, you can upload your ePub file to read it, you can zoom the text size, change the text font, or read the book in full screen, and you can also read it on your mobile phone browsers by visiting its mobile version.

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三.EPUBReader
For the ePub e-book, you can change the background color, the font size, the reading style, etc., and you can also use hot keys, such as C to open the catalog, S to save copy, D to set bookmark, so on and so forth.

四.FBReader
FBReader is fashioned for different platforms such as Windows XP, Vista and 7 as well as Linux desktop computers. There’s also an Android app available in Google Play that’s endowed with the same name. The eBook reader has the ability to support ePub, fb2(.zip), rtf, mobi and plain text file formats. Furthermore, it also includes a browser/downloader for network eBook stores. What’s more, the app uses external TrueType/OpenType fonts and hyphenation patterns for 16 languages.

五.Mantano Reader
Whether it’s for work or leisure, the Mantano Reader application allows users to read ePub and PDF documents with ease, via their very own Android-powered handsets. This innovative software even lets you read your Adobe DRM-protected books and comes complete with ID or password protection. You can also zero in on a particular book by employing the search function as well as share annotations and quotes with friends.