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Lhasa, Tibet viewed from the Pabonka Monastery, highlighting the Potala Palace. Credit: Wikipedia user Qeqertaq, Copyright: Creative Commons Attribution-ShareAlike 3.0 Unported

lhasa by fragglet

Free Software LHA implementation

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 that 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 that it will act as a drop-in free replacement.


ISC license (functionally equivalent to the BSD / MIT licenses).


Simon Howard (


The latest release (version 0.3.1) can be downloaded here.