SortDrops solves the Travelling Salesman Problem (TSP) for your delivery stops. Unlike apps that use straight-line distances, SortDrops queries real road distances from OpenStreetMap via OSRM — an open-source routing engine. The result is an optimized stop sequence that reflects actual driving time and distance.
Paste delivery addresses into the address field, drop pins on the interactive map, or upload an Excel file. SortDrops geocodes each address using Google Maps to get precise coordinates.
SortDrops builds a distance matrix — real road distances between every pair of stops via OSRM. The TSP solver uses multi-start nearest-neighbor heuristic combined with 2-opt improvement to find the shortest route. 15 stops solve in under 2 seconds. 50 stops solve in under 2 seconds.
One tap opens the optimized route in Google Maps, Waze, or Apple Maps with all stops pre-loaded in optimized order. Before/after comparison shows exactly how many kilometres you saved. Share the route link with anyone — no account needed to view.