1.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+160 starsfrom 6,590 · score 5.08
2.mapbox / mapbox-javaThe Mapbox Java SDK – Java wrappers around Mapbox APIs and other location data androidjavageojsondirectionsgeocodingnavigation+2 moreJavaMIT438 total118 forks+1 starsfrom 437 · score 0.69