Our website provided a free download of epubcheck 3.0 for Mac. The program's installation file is generally known as epubcheck-3.0.zip. Epubcheck for Mac lies within Productivity Tools, more precisely E-book Tools. This free Mac app is a product of EpubCheck. The following version: 3.0 was the most frequently downloaded one by the program users.
From the developer:
EpubCheck is a tool to validate IDPF EPUB files, version 2.0 and later. It can detect many types of errors in EPUB. OCF container structure, OPF and OPS mark-up, and internal reference consistency are checked. EpubCheck can be run as a standalone command-line tool, installed as a Java server-side web application or used as a Java library.
You may want to check out more software for Mac, such as ePub Checker, which might be related to epubcheck.