Instant Runoff Voting and the Single Transferable Vote Elections Online

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Desktop software for counting votes with ranked-choice voting.

  • Methods include the single transferable vote, instant runoff voting, Condorcet voting, and others.
  • Implements ranked-choice voting exactly as used by governments, including Scotland, San Francisco, and Cambridge, Massachusetts.
  • Heavily tested to maximize reliability.
  • Runs on MS Windows, Mac OS X, and Linux.

Download OpenSTV

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A web app to run ranked-choice voting elections online.

  • Run a secure election with up to one million voters where OpaVote emails each voter a voting link.
  • Run a poll where anyone can vote and optionally embed a poll widget on your own website.
  • Send reminder emails to voters who haven't voted to increase participation.
  • View results and download ballots at the end of the election.

Run an Online Election with OpaVote

To implement your own ranked-choice voting elections with OpaVote and OpenSTV:

  1. Run an entire election online using OpaVote or
  2. Collect the votes on your own (e.g., via paper ballots) and count the votes with OpenSTV.

Please send questions about OpaVote and OpenSTV to our Facebook page, our Google+ page, or our email group at openstv at googlegroups.com.

Reduced pricing for OpenSTV

Submitted by jeff.oneill on Sun, 12/16/2012 - 4:48pm

The price for OpenSTV has been reduced by 60%!

The price for a medium non-profit is now $40.

The price for a large non-profit or business is now $400.

The price for a small non-profit remains $5.

Please go to the download page to purchase.

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Newsletters from Electoral Reform Australia and Fair Vote Canada

Submitted by jeff.oneill on Sun, 12/16/2012 - 4:35pm

The November issue of the Largest Remainder Newsletter by Electoral reform Australia is available here, and contains the following articles:

  • Editorial
  • Is the American Presidential Election Democratic?
  • STV Simulation for 2010 House of Representatives Election

The November issue of Fair Vote Canada's newsletter is available here, and contains the following articles:

  • Lincoln MacCauley Alexander, 1922 - 2012
  • Change the system!
  • Name the Campaign
  • Activate your party for electoral reform
  • Help Wanted โ€“ translators
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California RCV elections and new OpaVote features

Submitted by jeff.oneill on Sun, 12/02/2012 - 4:26pm

A couple of updates from OpaVote!

(1) California RCV election results

Most of you know that four cities in California (San Francisco, Oakland, Berkeley, and San Leandro) used ranked-choice voting for elections such as mayor and city council.

One fantastic feature of their implementations of these elections is that they make the official ballot files available for download. Anyone can download the ballots and count them independently to verify that the ballots were counted correctly. I downloaded the ballots, converted them the format supported by OpaVote and OpenSTV, and put the results online here:
www.opavote.org/vote/709201
(I skipped elections where there was a majority in the first round as they are not very interesting.)

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OpenSTV 2.1.0 released and new OpaVote features

Submitted by jeff.oneill on Fri, 09/14/2012 - 8:59pm

OpenSTV 2.1.0 is now available for download! As most of my work in the last year has been on improving OpaVote, there are not a lot of new features for OpenSTV. The primary new feature is the ability to save election results in HTML format with pretty bar charts. You can also now save Condorcet results in HTML format but still working on the best graphics to visualize Condorcet results.

The most exciting new feature for OpaVote is full encryption for election voting pages! Since voting pages are now encrypted with SSL, OpaVote can be used with confidence even for elections where people are motivated to try to cheat the system. The weakest link in an OpaVote election is now the security of the individual voter's email accounts.

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Who uses OpaVote and OpenSTV?

The Stanford Law Review used OpaVote to elect its board in January 2013.

Fair Vote Canada used OpaVote for a member referendum in January 2013.

Fair Vote USA used OpaVote in January 2013 for it poll for Oscars Best Picture.

The Liberal Democrat Voice website used OpaVote for its poll for Liberal Voice of the Year in January 2013.

London Hackspace used OpaVote to elect its Trustees using Meek STV in December 2012.

The London School of Economics Student Union used OpenSTV to elect numerous officers in November 2012.

The Text Encoding Initiative Consortium used OpaVote in October 2012 to elect its board and council.

Black Star Coop used OpenSTV in October 2012 to elect its board using the single transferable vote.

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OpenSTV Announcements

Enter email address to subscribe to OpenSTV Announce

OpenSTV Questions

  • Ballot entry
  • Query
  • IRV Elections with Multiple Winners
  • Re: [OpaVote/OpenSTV] IRV without the elimination any round.
  • Re-Open Nominations (RON) and protection from elimination
  • Ballots with only 1 ranking
  • Ballots with only 1 ranking
  • Help With Bar Charts
  • Bug - STV with as many candidates as seats (GPCA and other)
  • Write-in votes
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