Simulate elections using Google Forms and Sheets

Versatile PHP election engine (library & CLI) with a high-level API. Handles everything from the simplest use cases to advanced options and simulation tools. Supports 20+ native Condorcet-like voting methods (extensible), scales from small polls to billions of votes in resource-constrained environments. Rigorously tested and documented.

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

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

IRV algorithm with a "no endorsement" option

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

Convertion of ABIF to/from other formats

Voting method exploration/simulation tool

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

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

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

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!

PyRankVote is a python library for different ranked-choice voting systems, like IRV, STV and PBV. Created in June 2019.

Ranked choice voting javascript/typescript library

A library of rank voting algorithms

JS implementation of Single Transferrable Vote (STV) counting

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

A rust library for tallying votes

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.