Software:The Unarchiver

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Short description: File decompression utility
The Unarchiver
The Unarchiver Icon 2018.png
Original author(s)Dag Ågren
Developer(s)Circlesoft, MacPaw[1]
Operating systemmacOS, Linux using GNUstep libraries, and command line only on Microsoft Windows, Linux, macOS
Available in18 languages
List of languages
English, Arabic, Bulgarian, Czech, Dutch, French, German, Hungarian, Italian, Japanese, Latvian, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Turkish
TypeFile Extractor / Decompressor
LicenseProprietary since acquisition[2]
Formerly LGPL
Websitetheunarchiver.com

The Unarchiver is a proprietary freeware[2] data decompression utility, which supports more formats than Archive Utility[3] (formerly known as BOMArchiveHelper), the built-in archive unpacker program in macOS. It can also handle filenames in various character encodings, created using operating system versions that use those character encodings.[4] The latest version requires Mac OS X Lion or higher. The Unarchiver does not compress files.[5]

The corresponding command line utilities unar and lsar is free software licensed under the LGPL[6] run on Microsoft Windows, Linux, and macOS.[7]

A main feature of the Unarchiver is its ability to handle many old or obscure formats like StuffIt as well as AmigaOS disk images and LZH / LZX archives, and so on. This is credited in its source code to the use of libxad, an Amiga file format library. Ågren also worked to reverse engineer the StuffIt and StuffIt X formats, and his code was one of the most complete open source implementations of these proprietary formats.

References

  1. ↑ "MacPaw acquires The Unarchiver Mac app, will keep it updated & free". 27 July 2017. https://9to5mac.com/2017/07/27/macpaw-acquires-the-unarchiver-mac-app/. 
  2. ↑ 2.0 2.1 "End User License Agreement (EULA) for MacPaw Products. Disclaimer and Limitations." (in en). https://macpaw.com/eula. 
  3. ↑ Popescu, George (19 August 2013). "The Unarchiver – A Better Way to Decompress Archives". http://www.softpedia.com/reviews/mac/The-Unarchiver-Review-374828.shtml. Retrieved 15 September 2016. 
  4. ↑ Seff, Jon. "Mac Gems: The Unarchiver is a free, robust file-extraction utility". http://www.macworld.com/article/2037025/mac-gems-the-unarchiver-is-a-free-robust-file-extraction-utility.html. Retrieved 15 September 2016. 
  5. ↑ Fenton, William. "The Unarchiver (for Mac)". https://www.pcmag.com/article2/0,2817,2459672,00.asp. Retrieved 15 September 2016. 
  6. ↑ "MacPaw/XADMaster is licensed under the GNU Lesser General Public License v2.1". 2018-03-21. https://github.com/MacPaw/XADMaster/blob/master/LICENSE. 
  7. ↑ "Command line tools". https://theunarchiver.com/command-line. Retrieved 2 March 2019. 

External links



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