A daily updated filename extension database!

Details of the .epub file extension

The table below provides useful information about the .epub file extension. It answers questions such as:

  • What is the .epub file?
  • What program do I need to open a .epub file?
  • How can the .epub file be opened, edited or printed?
  • How can I convert .epub files to another format?
  • Where can I find the specifications for .epub?
  • Which MIME-type is associated with the .epub extension?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

.epub file extension details

Open eBook Document

Open eBook Document .epub file icon
EPUB file is an Open eBook document. EPUB (electronic publication) is a free and open e-book standard, by the International Digital Publishing Forum (IDPF).
Category: Ebook files
Application: Adobe Digital Editions
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
EPUB aliases:
EPUB related links:
EPUB related extensions:
Microsoft Reader E-Book Document

TCR E-book

RAR Compressed Comic Book

ZIP Compressed Comic Book

Mobipocket Reader E-Book

TK3 E-Book

TomeRaider 3 E-book

FictionBook 2 E-Book

Amazon Kindle eBook

DNAML E-book

Other types of files may also use the .epub file extension.

.epub file converters

.epub converters

The following softwares are capable of converting .epub files to other formats:


For example, using the softwares above, a .epub file can be converted into one of the following formats:

cbc, cbr, cbz, chm, djvu, fb2, htmlz, lit, lrf, odt, pdb, pdf, pml, prc, rb
.epub file extension error

The .epub file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

epb, spub, epu, pub

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

EP Budgeting Data File
EPSi Firmware Image
Corel Ventura Publisher Publication
Microsoft Publisher Document
BeLight Disc Cover Data
Open eBook Document
open .epub file

Can't open a .epub file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .epub file association, check the FAQ.

.epub file extension

Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .epub file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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