Software

There's a lot of software and websites that folks have made for implementing different polling solutions.

Main category: Category:Software

By person

(alphabetical by last name)

Nicky Case

main article: Nicky Case

Things like Nicky Case's famous "how to build a better ballot": https://ncase.me/ballot/.

Ka-Ping Yee

main article: Ka-Ping Yee

Ka-Ping Yee's diagrams (Yee diagrams) changed many perspectives in the world of electoral reform.

Others

• User:RobLa - much random software, like ABIF-related software (like abiftool and awt) as well as other software.
• https://www.howtofixtheelection.com/
• See also: Category:Voting software

By software

Other links for software for calculation, analysis, simulation, etc. of voting methods and elections

Local execution & Library

• Condorcet PHP: Command-line application and PHP library natively including dozens of methods under a single interface. And a modular framework for implementing more.
• JavaScript library votes: Includes more than 16 voting systems. NPM, GitHub, demo.

Online election calculators

see also: online poll

These sites calculate the winner from a listing of ballots:

• Condorcet.Vote
  • Free online tool the supports text-based ballot entry and public polling. Calculates the following methods:
    • Schulze
    • Ranked Pairs
    • Kemeny-Young
    • Copeland
    • Minmax
    • Dodgson
    • Borda
    • Dowdall
    • Choose One
    • Ranked Choice
• Pairwise Methods Demonstration by RobLa
  • Calculates the Condorcet, Copeland, and Smith winners, but runs slowly because it's only available archived.
• Ranked-ballot voting calculator, inspired by RobLa's Pairwise Methods Demonstration (European mirror, Internet Archive mirror)
  • Supports text-based ballot entry. Calculates the following methods:
    • Baldwin
    • Black
    • Borda
    • Bucklin
    • Carey
    • Coombs
    • Copeland
    • Dodgson
    • Hare (Instant-runoff voting, Ranked Choice)
    • Nanson
    • Raynaud
    • Schulze
    • Simpson (Minmax)
    • Small (iterated Copeland)
    • Tideman (Ranked Pairs)
• Eric Gorr’s Condorcet Matrix, inspired by the Ranked-ballot voting calculator.
  • Supports text-based ballot entry. Calculates the following methods:
    • Condorcet (Iteratively eliminates the candidate with the weakest defeat)
    • Beatpath winner
    • Ranked Pairs
    • Ranked Choice (with a handful of fine tuning options)
• https://rangevoting.org/VoteCalc.html
  • Uses IEVS to calculate winners with over 60 different methods.
  • Supports text-based ballot entry, including rated ballots and ranked ballot with approval thresholds.
• DistributedVote
  • Archived and no longer available.
• star.vote
  • Simple tool for public and private polling using STAR Voting.
• Assortment of STAR Voting polling tools
  • Includes star.vote, a Google Forms add-on, and a Google Sheet.
• Sass' STAR Voting Calculator (bit.ly/STAR-Calculator)
  • A Google Sheet that calculates STAR Voting elections using cell formulas.
  • Supports ballot entry in the form of values in cells.
  • Formats ballot sets in SASS-C notation.
• Sass' Ranked Robin Calculator (bit.ly/robin-calc)
  • A Google Sheet that calculates Ranked Robin elections using cell formulas.
  • Supports ballot entry in the form of values in cells.
  • Formats ballot sets in standard notation.
• Condorcet Internet Voting Service
  • Free tool for public and private polling.
  • Calculates the following methods:
    • Minmax
    • Schulze
    • Maximize Affirmed Majorities
    • Ranked Pairs
    • Condorcet//IRV
    • Bottom-Two Runoff (BTR)
• StrawPoll
  • Tool for hosting public and private polls. Free and paid versions available.
  • Supports the following methods:
    • Approval
    • Choose One (FPTP)
    • Borda
• OpaVote
  • Premium tool for hosting secure elections.
  • Supports the following methods:
    • Choose One (FPTP)
    • Approval
    • Ranked Choice
    • Single Transferrable Vote (STV)
    • Beatpath
    • Condorcet//IRV
    • Condorcet//Borda
    • Copeland
    • Coombs
    • Borda
    • Bucklin
• Maximal Lotteries
  • Simulates Maximal Lotteries with a dedicated GUI for ballot entry. Also calculates a handful of other voting methods.
• Stable Voting
  • Free tool for hosting public and private polls. Uses Stable Voting.
• Method of Equal Shares: Online Computation Tool
  • Calculates the results of an MES election using a participatory budgeting voting file.
• vote.electionscience.org
  • Free tool for hosting public and private Approval Voting polls.
• ABIF Web Tool
  • Supports text-based ballot entry in the form of the Aggregated Ballot Information Format.
  • Produces beatpath diagrams, preference matrices, Ranked Choice results, and STAR Voting results.

Simulation

• Quadelect: Draw Yee maps, calculate Bayesian regret, and determine election winners
• IEVS: Infinitely extendible voting system comparison engine (C, non-commercial use only)
• Voteline1D simulator for FPTP, Approval, Borda, Condorcet, and IRV (Flash, online)
• To Build a Better Ballot: Nicky Case's 2D explorable explanation of six voting methods.
• Smart Voting Simulator: 2D interactive guide to voting methods.
• Votekit: A rough draft of a 2D and 1D interactive simulator.
• Arrow’s Theorem: Visualizing 3-Candidate, 3-Voter Elections with Hexagons. Video. Github.

Unsorted

• https://github.com/simberaj/votelib Open source Python library for calculating results of many election systems ranging from mixed-member proportional to Bucklin voting and many Condorcet methods
• https://github.com/brianolson/redistricter open-source impartial algorithmic redistricting
• https://metacpan.org/pod/Vote::Count Vote::Count a Perl Library supporting a large number of RCV and Range methods (IRV, Borda, Condorcet, MinMax).
• https://github.com/brianolson/voteutil Count votes with a variety of algorithms in a variety of languages (C, Python, Go, Java) Also a Histogram class with the same interface.
• https://github.com/brianolson/election_simulator Simulate elections to test election algorithms
• https://github.com/electionscience/vse-sim Methods for running simulations to calculate Voter Satisfaction Efficiency (VSE) of various voting systems in various conditions.
• https://github.com/crflynn/voting Different apportionment methods implemented in Python
• https://github.com/vvk-ehk/ivxv Source of Estonia's online voting system.
• http://bolson.org/voting/sim_one_seat/dist/
• https://github.com/msmunter/star.vote Star.vote Website https://star.vote

Formats

• Aggregated Ballot Information Format (ABIF) ― This format is designed to be a universal format for expressing aggregated ballot sets from elections, regardless of whether voters are asked to provide rankings (i.e. "ordinal voting") or ratings (i.e. "cardinal voting"). It's loosely based on a format that has been used on the election-methods mailing list and in other places since 1996.
• Condorcet Election Format ― This format is a free election description specification. The objective of this format is to be easily written and read by a human, with the rigor and precision necessary for ingestion by a program.
• Election Markup Language ― This format was created by an OASIS working group chartered "to develop a standard for the structured interchange of data among hardware, software, and service providers who engage in any aspect of providing election or voter services to public or private organizations."