VoteFlow
VoteFlow is a web app that helps election offices and civic groups test ballot designs and voting-system rules before printing or deploying them. It runs scenario-based simulations: you upload a draft ballot (PDF or layout spec), define contest rules (ranked-choice, plurality, approval, multi-member, etc.), and import anonymized sample ballots or synthetic voter preference distributions. VoteFlow then flags likely voter-error hotspots (overvotes, undervotes, confusing instructions), estimates time-to-complete, and compares outcome sensitivity across designs (e.g., how small layout changes or instruction wording shifts affect error rates and exhausted ballots). It generates a plain-language report for administrators and a technical appendix for auditors, plus an exportable checklist for pre-election logic-and-accuracy testing. This is not magic: it won’t prove “fairness,” but it can catch expensive, preventable usability failures early.