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To download ePub Checker from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.

ePub Checker

By Sixty Four, LLC

Open the Mac App Store to buy and download apps.


This simple to use utility application is for validating ePub formatted e-books.

It gives you the ability to review the ePub file before you publish it.

ePub Checker is EPUB3 standard compliant.

ePub Checker is supported by:

Mac OS X 10.7
Mac OS X 10.8
Mac OS X 10.9
Mac OS X 10.10

What's New in Version 1.4

1. Updated ePubChecker code to 3.0.1
2. Application fixes to support latest Mac OS X
3. Changed support e-mail to


Screenshot 1
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Customer Reviews

Checked for ePub v2, not v3 as advertised

Hmm, wasted $2 here. Really wanted this to work as surprised there isn’t another native Mac app to validate ePub files. I tested this with the ‘Wasteland’ sample ePub file from IDPF, but it listed 243 errors. The first error was that ePub version 3.0 was ‘invalid: must be equal to “2.0”’, even though the app was set to use ‘ePub Check v3.0.1’ (current as of July 2015). Also listed as errors the use of <section> and <nav> tags (HTML5), the attributes “epub:type’ and ‘xml:lang’, and wanted ‘navPoint’, none of which seemed like v3 errors. Is there a way to get my money back?

Feedback is in the logs

For my epub it doesn’t give much feedback on screen. I have to read the logs.

Does not work. At all. Why is this still being sold????

throws an error for ePub3 not being ePub2. Why is this still on the app store? Refund please.

ePub Checker
View in Mac App Store
  • $1.99
  • Category: Utilities
  • Updated:
  • Version: 1.4
  • Size: 8.8 MB
  • Language: English
  • Seller:

Compatibility: OS X 10.9 or later, 64-bit processor

Customer Ratings

Current Version:
All Versions: