How to Open .7z Files on Mac OS X
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How to Open .7z Files on Mac OS X

The .7z is a compressed file format which is developed with Igor Pavlov's 7-Zip file compression power. It supports various data compression and encrypted shield algorithm. However, LZMA compression is chosen by default for greater compression ratio. The strong AES-256 (256-bit) encryption and Unicode file labels are entirely supported.

The 7-Zip program archiver is the default software to launch 7Z files. It is openly released within the terms of the GNU Lesser General Public License (LGPL).

What are 7z files and how do you open it on Mac OS X?


First, a .7z file is an archive file format that stands for 7-zip, you may think of .7z files such as any other archive files (such as .rar, .zip, .gz,… ).

Normally, Mac OS X does not open these files, but you don’t worry about that because there's a provided application that can open the .7z file on Mac and some app is free.

How to open 7z files on Mac

First, you need to download and install Unarchiver app: Click Here

Unarchiver is excellent software, and it is free cost and flexibility because you can find it on App Store or use on another OS like Windows, or Linux.

open 7z on mac

Then, just double click on any .7z files which you need to open and use on your Mac. It will uncompress automatically.

open 7z on mac

That’s all. Now you always open the .7z files on your Mac anytime if you want.

More Application to open .7z

Further, you can use some difference free applications to open .7z such as


Keka is a free application for Mac OS X the compression core is p7zip (7-zip port)

  • Compression formats supported: 7z, Zip, Tar, Gzip, Bzip2, DMG, ISO
  • Extraction formats supported: RAR, 7z, Lzma, xz, Zip, Tar, Gzip, Bzip2, ISO, EXE, CAB, PAX, ACE (PPC).

B1 Free Archiver

B1 Free Archiver is a free application that allows its users to extract .b1, .rar, .7z or .zip archives. B1 Free Archiver is also useful if you want to fast open or extract a popular archive.



Solomen is Editor of OMG!Howto who covers technology news, how-to guides and more. Solomen uses an iOS and Android devices as well as Mac and Windows. In his free time, he often listens to Baroque music and goes swimming. Follow him on Instagram: @solomen1992


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