[Elzear]

I am working on an application[1] and library[2] to create smalls polls using (so far) 8 different voting systems (approbation, borda, instant-runoff, kemeny, majority, minimax, schulze, two-round-runoff). Feel free to play with it, but it is still unstable, and I drop the database often times.

Condorcet.vote[3] is the only similar application that I know, it lets you use 14 different methods!

[1] https://www.elzear.de/poll/BLIwuJIX

[2] https://gitlab.com/lzear/votes

[3] https://www.condorcet.vote

[DominikPeters]

Academics working on voting theory have several of these as well: https://voting.ml/ https://opra.cs.rpi.edu/ https://pnyx.dss.in.tum.de/ http://www.robovote.org/ https://whale.imag.fr/