The Unarchiver

Licence: GPL
Version 3.9.1 | Release Date: 2014-10-04 | Download

The Archive Browser for Mac OS X and Archives for iOS have also been updated! Look for them in the App Stores!
* 3.9.1: Fixed extraction of double-format archives like .tar.gz, which was accidentally broken in 3.9.
* Add Dutch translation.
* Add support

Version 3.2 | Release Date: 2012-05-09 | Download

Added a workaround for a sandbox bug in Mac OS X that was causing extracted apps to not launch properly.
Added Polish, Spanish, Turkish, Latvian and Portugese translations.
Fixed opening folders in the Finder after extraction.
Fixed extraction of partial RAR files.
Fixed spurious warnings about resource forks for some Zip files.

Version 3.0 | Release Date: 2012-03-21 | Download
  • The Archive Browser is now available. Find it on the Mac App Store!
  • Support for WinZip Zipx.
  • Support for extracting images and sounds from Flash SWF files.
  • Support for various Unix formats, such as ar and deb.
  • Support for more CD and DVD image formats, such as MDF, NRG and CDI.
  • Better support for Zip64 (large zip files) and extended attributes.
  • Better support for 7z (self-extracting files, and LZMA2).
  • Better support for some old formats, like LBR, StuffIt and DiskDoubler.
  • Lots of bugfixes.

Unfortunately, there are now less translations available. All the translations of The Unarchiver are submitted by volunteers, and I now need more volunteers to translate it into more languages! If you'd like to see it in your language, please submit a translation!

Version 2.7 | Release Date: 2011-04-15 | Download
  • Available on the App Store!
  • Support for ISO and BIN disc images.
  • Support for encrypted StuffIt archives, thanks to a friendly archivist.
  • Workaround for broken Zip archives that make files non-executable.
  • Fixed unpacking .pkg files.
  • Better StuffIt X support.
  • Other bugfixes.
Version 2.6 | Release Date: 2010-11-29 | Download
  • Added support for Now Compress and LBR.
  • Improved DiskDoubler support. Almost all modes are now supported, including hardware-accelerated ones.
  • Better support for ARC, including proprietary PAK algorithms.
  • Better support for Squeeze and Zoo.
  • Several bugfixes for RAR, Zip and Compress files.
  • Fixed broken handling of multi-part files in unar.exe on Windows.
Version 2.6 | Release Date: 2010-11-10 | Download
No changes specified
Version 2.5 | Release Date: 2010-07-13 | Download

- Fixes unpacking of password-protected Zip files, which was broken in the last update.
- Source can now be built with a completely free implementation of RAR which works for all versions, including multimedia filters, avoiding the non-GPL-compatible unrar license. (There is also better support for ancient RAR 1.5 files.)
- Has a workaround for a Paragon NTFS bug that made unpacking on NTFS drives generate errors.
- Fixes for Tar and RPM files.
- There are now two command-line utilities available, unar and lsar, which can be used to unpack and list archives, respectively. They are still in development and not really feature-complete, but they should work. These are available as precompiled binaries for both OS X and Windows on the download page, and can also be built on Linux.

Version 2.4 | Release Date: 2010-05-16 | Download
  • Support for Zip files missing their central directory. This makes it possible to recover more damaged Zip files.
  • Support for more DiskDoubler files.
  • Better handling of broken Tar files, such as those created by some versions of Ant.
  • Bugfixes for the RAR and StuffIt decompressors.
  • Fixed file association for .Z files.
  • Italian and Danish translations, by Marco Rotatori and Søren Palmund.
  • Some fixes for the handling of file permissions, to better match Archive Utility.
  • Fixes to unpack giant .tar.gz files better.
  • Optimized decompression of several older formats, such as LZH and StuffIt.
  • Fixed a couple of bugs in the UI.
Version 2.4 | Release Date: 2010-05-10 | Download

New in 2.4:

Support for Zip files missing their central directory. This makes it possible to recover more damaged Zip files.
Support for more DiskDoubler files.
Better handling of broken Tar files, such as those created by some versions of Ant.
Bugfixes for the RAR and StuffIt decompressors.
Fixed file association for .Z files.
Italian and Danish translations, by Marco Rotatori and Søren Palmund.
Some fixes for the handling of file permissions, to better match Archive Utility.
Fixes to unpack giant .tar.gz files better.
Optimized decompression of several older formats, such as LZH and StuffIt.
Fixed a couple of bugs in the UI.

Version 3.1 | Release Date: 2010-04-02 | Download
No changes specified
Version 2.3 | Release Date: 2010-01-12 | Download

split and concat .001-files

Version 2.2 | Release Date: 2009-11-18 | Download

Korean and Traditional Chinese translations.
Support for the XZ compression format, along with support for embedded XZ in RPM and XAR files.
Support for LZMA2 and some more filters in 7-zip.
Support for NSA and SAR.
Better support for unicode in Zip files, and some bugfixes for Korean.
Better support for MacBinary in Zip.
Fixed an issue where the final file in a Zip file created on OS X might get lost.
More robust reading of gzip files.
Fixed an issue with the interface, where the window was sometimes left open.

Version 2.1 | Release Date: 2009-10-07 | Download

New in 2.1:

Added a service for unarchiving files via the the Services menu, or when right-clicking files.

Some interface tweaks (File menu now works in the preferences window, doesn't ask for destination directories for every archive, archives are not added to the queue twice).

Proper quarantine propagation for downloaded files.

Better support for very large Zip and 7-zip files.

More RAR bugfixes.

For programmers: The XADMaster library can now be compiled in 64 bit mode, but the The Unarchiver app itself is still only 32 bit

Version 2.1 | Release Date: 2009-10-06 | Download
No changes specified
Version 2.0.3 | Release Date: 2009-09-15 | Download

New in 2.0.3:

  • More speedups and bugfixes for encrypted RAR files.
Version 2.0.2 | Release Date: 2009-08-31 | Download

New in 2.0.2:
- Speed up the RAR decryption code a lot.
- Fixed some issues with resource forks in .tar.gz and .tar.bz2 files.

Version 2.0.1 | Release Date: 2009-08-28 | Download
  • Should now handle concaternated bzip2 files.
  • Fixes to the Japanese translation.
  • Fixes to the LZMA parser.
Version 2.0 | Release Date: 2009-08-22 | Download
  • Support for many new formats and algorithms:
    * Partial support for SITX archives. Most archives should open fine, but SITX's special JPEG compression is unsupported. Some preprocessing filters are also unsupported.
    * Other new formats: XAR, ALZip, LZMA-utils, Compact Pro, PackIt, ARJ
    * Encrypted RAR archives.
    * WinZip-style encrypted Zip files using AES.
    * Can decompile NSIS installers to get the files inside. This seems to work for versions all the way back to 1.1o or so, but a lot of guessing is involved so it might fail on some files.
    * More compression types in Zip: Deflate64, bzip2, PPMd, LZMA.
    * More compression types in DiskDoubler (but still not all).
    * Better handling of 7-zip, RAR, LZH, tar and RPM files.
    * Extracting files from several emulation formats, such as NDS and ADF.
    * Bugfixes and streamlining for the user interface.
  • Option for when to create folders for extracted files.
  • Option for how to set the date of extracted folders.
Version 2.0rc | Release Date: 2009-08-17 | Download

The Unarchiver 2.0

The Unarchiver 2.0 features extensive internal rewrites. The old libxad is mostly gone except for old formats, and new Objective-C based code handles most normal formats. This makes it much easier to add support for new formats and advanced functionality, but the rewrite has likely introduced a lot of new bugs. Therefore it would be extremely helpful if users could download it and try it on as many files as possible, especially any files that have caused problems in the past, but also anything else.

If you have any problems with the alpha version, please, file bugs on the issues page, and include the files that cause problems if at all possible.

Get the latest version from the downloads page:

http://code.google.com/p/theunarchiver/downloads/list

Obviously, this version may not work for you, so be prepared to downgrade to 1.6.1 if it causes issues for you.

New Features

  • Partial SITX support. Most compression modes in SITX should work fine, except the JPEG compression mode which was just too huge to reverse engineer properly. If anybody wants to help out and get that working, I'd be incredible grateful.
  • RAR encryption support. Should work, maybe. Test it out, and also test if any of the other RAR problems have been fixed by the rewrite!
  • Support for WinZip-style AES encryption in Zip.
  • Much improved 7-zip support, supporting most compression algorithms (but not encryption).
  • Support for Deflate64, bzip2, PPMd and LZMA in Zip.
  • Support for old-style standalone .lzma archives (but not the new-style ones, yet).
  • Support for XAR archives (gzip and bzip2 only, not LZMA yet, needs support for new-style standalone .lzma).
  • Support for some more obscure Mac OS-specific Zip extensions.
  • Support for some more old Mac OS formats: Some more DiskDoubler modes, Compact Pro, PackIt.
  • Support for ALZip.
  • Improved Tar support thanks to halcyon (http://halcy.de/).
  • Improved RPM support.
Version 1.6.1 | Release Date: 2008-01-19 | Download
  • Leopard compatibility fixes. (A real update is in development but will not be ready for some time.)
Version 1.6 | Release Date: 2007-03-18 | Download

- Fixed a bug that caused password-protected Zip archives to fail to extract.
- Added support for zip archives created by ZipIt.
- Added a Dutch localization by Jonathan.
- Fixed a rare RAR bug, and some GUI quirks.

Version 1.5 | Release Date: 2007-02-11 | Download
  • Fixed a bug that made it impossible to use The Unarchiver together with Xee on some computers.
  • Added a Traditional Chinese localization by NitocTaiwan.
Version 1.4 | Release Date: 2007-01-29 | Download

* Experimental support for Mac OS X 10.3.
* Support for pax archives, as found in Installer packages.
* Fixed a bug where large archives with lots of resource forks would cause massive memory use.
* Fixed some timezone-related bugs. Some format may still have problems getting the timestamps exactly right, however.
* Various other minor bugfixes.

Version 1.3 | Release Date: 2006-11-24 | Download
  • More localizations: Portugese and Russian. Thanks this time go to Nylson Coelho and Michael Krekin
  • Changed the modifier key for extract-to-foler: Either Shift or Option works now. Command was too easy to accidentially trigger when opening a file with Command-O.
  • Fixed a bug where app bundles in StuffIt files would not run correctly after being extracted.
  • Fixed a bug where The Unarchiver would hang when trying to extract particularly broken files.
  • Fixed a bug where apps would be launched when the open-after-extracting option was on.
Version 1.3 | Release Date: 2006-11-23 | Download
No changes specified
Version 1.2 | Release Date: 2006-11-11 | Download
  • Added several localizations: Japanese, German, French and Spanish. Many thanks to E-WA, Christoph Schmitz, Thomas Steffen, Thomas Didrel, and Oscar A. Mata T. for their work on this!
  • Added an option to have The Unarchiver ask for a destination folder. Holding the command key while double-clicking an archive will also make The Unarchiver ask for a destination folder.
  • Fixed many unarchiving bugs. Several problems with Zip files fixed, and SIT files should now work much better, especially on Intel machines.
  • Fixed some other bugs in the interface, such as some problems with the filetype association list.
Version 1.1 | Release Date: 2006-09-17 | Download
  • Added options to automatically open extracted folders, and to automatically delete archives after extracting.
  • Added an option to select which folder to extract to.
  • Fixed the bug where the window would sometimes open below others.
  • Fixed a number of extraction bugs.
Version 1.0 | Release Date: 2006-09-13 | Download
No changes specified