Download OpenSTV
MS Windows
Download OpenSTV-1.6.1-win32.exe (5.3 MB).
Mac OS X 10.5 (Leopard) & 10.6 (Snow Leopard)
Download OpenSTV-1.6.1-osx.dmg (16.7 MB), open the disk image, and drag the OpenSTV application to your Applications folder.
Linux
Install Python 2.5 or 2.6 and wxPython. Download and unpack OpenSTV-1.6.1.tar.gz (108 kB) and run OpenSTV.py.
Stable source
The Linux tarball (above) contains the stable source for all platforms.
Google Code
OpenSTV's source code is hosted at Google Code: http://code.google.com/p/stv/. Use this command to check out a copy of the latest OpenSTV source (not necessarily stable) via Subversion:

   svn checkout http://stv.googlecode.com/svn/trunk/ stv-read-only