OpenSTV is the most used software for ranked-ballot elections using methods such as the single transferable vote, instant runoff voting, and Condorcet voting. No other software, whether commercial or open source, comes close to providing all the features of OpenSTV.

If you used OpenSTV for an actual election, the suggested donation is $50. If you have not used OpenSTV for an election but find it useful, please consider an appropriate donation.

Donations may be made by any of the following methods:

Paypal

Google Checkout

Send an email to jeff.oneill @ openstv.org, and I'll send you an email with a payment link.

Amazon Payments

Send an email to jeff.oneill @ openstv.org, and I'll send you an email with a payment link.