Valhalla

lastmod 2026-11-10created 2020-07-032 edits

Valhalla is an open-source routing engine written in C++. It splits OpenStreetMap data into tiles for storage, which keeps memory usage low, and lets the cost model for each mode of travel, such as car, bicycle, or walking, be changed dynamically at request time. It provides turn-by-turn guidance, isochrone, map matching, and matrix calculation APIs.