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Extension Unpacker     Extension Unpacker

Extension Unpacker lets you unpack Safari extensions to see what files they contain. If you are worried about the safety of an extension, or are just curious about how it works, this app can help you out.

It is perfect for users who are not comfortable with using the command line interface (Terminal) to accomplish the task, and for those who are, the app provides a user interface and will automatically take you to the extension's file directory when it is done unpacking.

Other Information
Extension Unpacker will ask you to select a .safariextz file. By default, it will look in your ~/Library/Safari/Extensions folder, though you can point it to another location if you want. The app lets you choose multiple extensions at the same time if you want.

If you intend to look at an extension's code to help build an extension of your own with Safari's Extension Builder, be sure you do not directly copy any copyrighted code.

After Extension Unpacker downloads, move it to your Applications folder (optional), then launch it. If you get a message that it is an application downloaded from the Internet, click Open in the dialog. After it opens, click "Select Extensions to Unpack" and Extension Unpacker will get right to work.     Extension Unpacker
Improved user interface is only available for the Intel version of this application.

  • Mac OS X 10.6 (Snow Leopard) or later
  • At least 1.6MB of free disk space

Known Bugs
  • When unpacking an extension from a location other than the Extensions folder, Extension Unpacker will unpack the extension, but will not automatically open the directory afterwards

Version History
  • 2.0.1
    • Displays a notification after extension(s) are unpacked (OS X Mavericks (10.9) and later)
    • Stability improvements
  • 2.0
    • Redesigned user interface
  • 1.2.3
    • Extension Unpacker is now signed with a Developer ID, so there are no more "Unidentified Developer" messages to contend with
  • 1.2.2
    • Improved adware detection
  • 1.2.1
    • Improvements to the update process
    • Fixes an issue where users may not have had permission to access the folder the unpacked extension was saved to
  • 1.2
    • Ability to check for adware Safari extensions
    • New main menu
    • The application will now auto-check for updates
    • New icon
  • 1.1.1
    • Offers to move to Applications folder
  • 1.1
    • Power PC version now available
    • Fixes an issue where the unpacked extension could not be opened if it had a different name
  • 1.0.2
    • Performance improvements
  • 1.0.1
    • Minor performance improvements
  • 1.0
    • Initial Release

Comments (2):

By Jack on 11/02/15 • Reply
Extension Unpacker 1.2

As written in MacInTouch: 

"Extension Unpacker is a Mac utility from Apple Club (headed by Matthew Leeper) for unpacking Safari extensions (.safariextz files) to see what files they contain, as well as checking for adware malware. Extension Unpacker 1.2 is a free download for Mac OS X 10.6 and up." 

What part of "free" do I not understand as it asks for $0.99 when you want to d/l the "free" version. 

in response to Jack
By AppleClubSupport on 11/02/15 • Reply
Hi Jack,

There is no free version. I am sorry that you received incorrect information, but we have no control over what is posted on the MacInTouch website. I just visited that site and it looks like they may have corrected it, as it now correctly states that Extension Unpacker costs 99 cents.