Projects / Lhasa


Lhasa is a Free Software replacement for the Unix LHA tool, for decompressing .lzh (LHA/LHarc) and .lzs (LArc) archives. The backend for the tool is a library, so it can be reused for other purposes. Lhasa aims to be compatible with as many types of lzh/lzs archives as possible. It also aims to generate the same output as the (non-free) Unix LHA tool, so it will act as a drop-in free replacement.

Operating Systems

Recent releases

  •  28 Mar 2013 13:33

    Release Notes: This version adds better support for OS-9 lzh archives and fixes several security vulnerabilities related to handling of symbolic links.

    •  02 Jun 2012 18:00

      Release Notes: This release adds support for extraction of Unix symbolic links and parsing of Unix-level 0 extended header areas. A decompressor has been added for the "old" PMarc compression algorithm (-pm1-).

      •  07 May 2012 23:15

        Release Notes: This release adds support for running on Windows and fixes several minor bugs reported in the previous release.

        •  01 May 2012 21:10

          Release Notes: This release adds special handling for the MacBinary headers inserted by the Classic Mac OS MacLHA tool. A Unix man page has been added. Several minor bugs found in archive extraction have been fixed, and the regression test suite has been significantly improved.

          •  22 Apr 2012 19:02

            Release Notes: This release adds detection and special handling for MacLHA archives and fixes a minor bug related to directory creation.


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