Count instant runoff and single transferable vote elections for free, no downloads or sign-up required
No downloads or sign-ups are required. OpenTally counts are computed entirely inside your browser, and no data ever leaves your computer.
OpenTally supports Gregory (inclusive and exclusive, weighted and unweighted), Meek and Wright variants of the single transferable vote.
OpenTally is the only publicly available election counting software to support arbitrary combinations of constraints, such as gender quotas and other affirmative action requirements.
Source code for OpenTally is publicly available under the GNU AGPLv3.
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