EPUB File - opening and understanding

Did your computer fail to open an EPUB file? We explain what they are used for and recommend software that we know can open or otherwise handle your .EPUB files.

What is an EPUB file?

The .epub file extension is often given to files that have been created by applications that use the Open eBook XML file format. These files are composed of three open standards including the Open Packing Format, the Open Publication Structure and the Open Container Format.

The EPUB file format allows eBook publishers to produce unencrypted reflowable digital eBooks. The EPUB files consist of a ZIP file that contains the contents of the eBook and an XML file that describes the contents of the ZIP file itself.

In order to read an eBook that has been published in the EPUB file format, you must have a compatible eBook reader.

How to open EPUB files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension EPUB for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 10 different EPUB openers which you will find listed below.

Suggest another file format using extension EPUB

While we know of one file format using the .EPUB file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .EPUB file.

Various viewers for this file format

These apps are known to open certain types of EPUB files. Remember, different programs may use EPUB files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Free File ViewerFree File ViewerUser submitted
WinRARWinRARUser submitted
Final Media PlayerFinal Media PlayerUser submitted
Adobe Digital EditionsAdobe Digital EditionsUser submitted
calibre - E-book managementcalibre - E-book managementUser submitted
PDFlitePDFliteUser submitted
Reader for PCReader for PCUser submitted
mekia eBook Readermekia eBook ReaderUser submitted
UPDFUPDFUser submitted
iTunesiTunesUser submitted
We have not verified any software that we know for certain will work with EPUB-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with EPUB-files. If you know one, please use the 'Suggest a program' link below and tell us about it!