1.valhalla / valhallaOpen Source Routing Engine for OpenStreetMapopenstreetmapdijkstraastartileddirectionsisochrones+4 moreC++Other license6.4K total1K forks+32 starsfrom 6,378 · score 3.50
2.Project-OSRM / osrm-backendOpen Source Routing Machine - C++ backendosrmcppc-plus-plusroutingrouting-enginemap-matching+5 moreC++BSD-2-CLAUSE8.2K total4K forks+15 starsfrom 8,175 · score 2.77
3.graphhopper / graphhopperOpen source routing engine for OpenStreetMap. Use it as Java library or standalone web server.openstreetmapjavageospatialdijkstradirectionsrouting-engine+7 moreJavaAPACHE-2.06.8K total2K forks+8 starsfrom 6,746 · score 2.20