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Exttra allows you to edit the metadata attached to certain files or directories by the Mac OS, it’s subsystems, or by any application that desires to store little bits of information just beyond your reach.

Exttra's goal is to provide a graphical user interface to the xattr command. It attempts to allow you to perform all the tasks described in the manual for the xattr command.

From the manual page, "The xattr command can be used to display, modify or remove the extended attributes of one or more files, including directories and symbolic links. Extended attributes are arbitrary metadata stored with a file, but

What's New

Version 1.0.1:
  • Fixed a bug that would cause the Add [Attribute] button to become disabled.


  • OS X 10.7 or later
  • Intel 64

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Exttra User Discussion


Current Version (1.x)


Downloads 1,747
Version Downloads 1,747
License Free
Date 15 Nov 2012
Platform Intel 64 / OS X
Price Free
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