MapAudit

MapAudit is a web app (with optional desktop export tools) that helps journalists, watchdog groups, and local advocates quickly evaluate proposed redistricting maps for likely partisan and racial bias using standard, court-cited metrics. Users upload shapefiles/GeoJSON, select election years and demographic layers, and the app generates a plain-language “audit packet” with metrics like efficiency gap, mean-median, partisan symmetry, compactness, and minority opportunity indicators—plus reproducible methodology notes and citations. It also produces side-by-side comparisons against enacted maps and a neutral baseline ensemble (limited, transparent sampling) to show whether a plan is an outlier. This is a combination traditional + AI app: traditional GIS/statistics do the scoring, while AI drafts a readable narrative summary and highlights the strongest/weakest arguments and caveats. The goal is not to ‘prove’ illegality, but to make map criticism faster, clearer, and harder to dismiss.