OpenSTV version 2.0.0 released June 21, 2011

Since 2003, the OpenSTV project has been dedicated to improving democracy by providing professional quality software for the single transferable vote and other ranked-choice voting methods. To support continued development, OpenSTV is now available under a restrictive license but the complete source code is still available.

The license is for one year with prices ranging from $5 to $999. For small non-profits and for individuals not acting on behalf of or for an organization, the price is only $5. For medium non-profits, the price is $99, and for all other organizations the price is $999. Please see the OpenSTV EULA for details and contact jeff.oneill @ openstv.org with any questions concerning licensing.

Please select the appropriate purchase link from the table below. To purchase with PayPal, you do not need a PayPal account and may pay with a credit card.

MS Windows Installer
XP, Vista, and
Windows 7 only
(no source code)
Mac OS X App
Leopard, Snow Leopard,
and Lion only
(no source code)
Source Code
Source code for Linux or any platform with Python 2.7 and wxPython
Individual (not acting on behalf of or for an organization)
Small Non-Profit (0-3 employees)
$5 buy file $5 buy file
Medium Non-Profit (4-30 employees) $99 buy file $99 buy file $99 buy file
Large Non-Profit (more than 30 employees)/ Commercial/ Government $999 buy file $999 buy file $999 buy file