Vote tallying tool that ranks the winners by Instant-Runoff (IRV) rules. Intended for use with Louisiana Youth & Government conference elections.

A PHP library based on STV.pm by Jonathan Lundell.

An instant-runoff election program in C that demonstrates ranked-choice voting by redistributing votes until a candidate achieves a majority.

JS implementation of Single Transferrable Vote (STV) counting

A library of rank voting algorithms

IRV algorithm with a "no endorsement" option

The elections site for the Stuyvesant High School Student Union. Made with Next.JS, MongoDB and GraphQL

Simulate elections using Google Forms and Sheets

Voting method exploration/simulation tool

This plugin allows sorting a list of options by preference of the user, instead of just selecting one.

CiviCRM extension which provides election functionality, including nominations, candidates and voting to CiviCRM.

Run ranked voting contests using data from Google Forms or a Discourse forum

A Julia package for simulating and analyzing rank choice voting systems.

A program for comparing electoral systems. Supports instant-runoff voting, first-past-the-post, the Borda count, and more.

The reference implementation of the single transferable vote (STV) system used for student government elections at Carnegie Mellon University.

Convertion of ABIF to/from other formats

Ranked choice voting javascript/typescript library

Election Simulator 3000: Monte Carlo simulations of voting methods and metrics under different voter models

Voting systems comparison website. Simulate a single election in dozens of different voting methods including plurality, borda count, instant runoff, bucklin, copeland, and many more!