File extension epub is used by e-book in Open Publication structure eBook format. Since 2007 EPUB format is regarded as international standard. Generally used for text-centric books or other publications.

Detailed description

Software that open epub file

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EPUB file extension - Open Publication structure e-book

What is epub file? How to open epub files?

File type specification:

E-book file type icon E-book file type

epub file icon: epub filetype icon

The epub file extension is exclusively related to the Open Publication structure eBook file format.

What is epub ebook format?

Open eBook is an e-book file format based on XML language and defined by the Open Publication Structure specification. It is a file format purely designed for reflowable digital books and publications.

Generally, EPUB file format is a combination of three open standards, the Open Publication Structure (OPS), Open Packaging Format (OPF) and Open Container Format (OCF), which are defined by the IDPF.

EPUB offers publishers the means to create and send a single digital publication file through distribution and at the same time offers end users and consumers interoperability between software/hardware for unencrypted reflowable digital publications.

Epub is common file format for digital books today, there is plenty of e-book services and stores, software readers or epub converters for all platforms and devices.

Updated: January 20, 2023

The default software associated to open epub file:

FBReader icon

FBReader  Microsoft Windows software

Company or developer:
Geometer Plus LLC

An easy-to-use e-book reader, FBReader supports variety of e-book document formats, such as EPUB, FB2, Plucker, Mobipocket, PDF, TXT and others.

Adobe Digital Editions icon

Adobe Systems Incorporated logoAdobe Digital Editions  Microsoft Windows software

Company or developer:
Adobe Systems Incorporated

Adobe Digital Editions is a electronic publication management software with which users can purchase, download, and read digital content. Digital Editions support standard e-book formats such as EPUB or PDF.

Calibre icon

Calibre  Microsoft Windows software

Company or developer:
Kovid Goyal

A very popular, open source digital publication library management program for Microsoft Windows developed by e-book users for e-book users. It supports many common, and few uncommon e-book formats, like azw, cbc, cbr, cbz, epub, htmlz, lit etc.

iBooks for Mac icon

Apple, Inc. logoiBooks for Mac  Apple macOS / Mac OS X software

Company or developer:
Apple, Inc.

iBooks is default reader and manager of books in electronic form for Mac OS X operating system. It allows users to read EPUB books or PDF documents as well as purchase and download e-books from iTunes on-line book store.

iBooks for iOS icon

Apple, Inc. logoiBooks for iOS  Apple iOS (iPhone, iPad, iPod Touch devices) software

Company or developer:
Apple, Inc.

iBooks is default e-book reader and e-book manager for iPhone, iPad and iPod Touch. It is able to view EPUB, or PDF documents as well as purchase and download e-books from iTunes on-line book store.

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Help how to open:

To open and read epub formatted files, you need an ebook-reader app like those available on tablets or e-readers like the Kindle or Nook.
The *.epub files are widely supported by many ebook readers software that are available across many platforms for both computers or hand-held devices.

How to convert:

As EPUB is somewhat of a standard for ebooks today, there is plenty of ebook converters that can help you with conversion to other document file formats. See suggested conversions or software below.

Find conversions from epub file:

epub to cbr

epub to doc

epub to docx

epub to mp3

epub to mp4

epub to pages

epub to pdf

Find converter to epub file type:

acsm to epub

azw3 to epub

iba to epub

ibooks to epub

opf to epub

rar to epub

vbk to epub

File identification strings:

HEX code: 50 4B 03 04
ASCII code: PK

List of software applications associated to the .epub file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open epub file, edit epub file, convert epub file, view epub file, play epub file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting epub files.

Software that open epub file - Open Publication structure e-book

Programs supporting the exension epub on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open epub file action.

Microsoft Windows:

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