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Author Archives: Peter

Host Your Own Worldwide Route Calculator With GraphHopper

OpenStreetMap (OSM) is a free digital map of the world that is created and maintained by millions of users. Among many other things it includes detailed information about every possible type of road, ranging from narrow hiking trails in the mountains to the biggest motorways. Using the open source GraphHopper routing engine you can easily […]

Scaling Governors Can Have Bugs

All started on 27th April when my colleague Andi found a tweak that would make requests towards our Matrix API a little bit faster for matrices with only a few dozens of locations. He just had to find the specific number of locations when it made sense to use it in production. But something was […]

New and Customizable Routing Profiles

For a long time, our GraphHopper Directions API offered routing profiles for different modes of travel like driving by car, bike, different sizes of trucks, or pedestrian walking. We gradually improved these profiles over the years, so they work quite well for many standard use cases. However, many of our customers also like to go […]

GraphHopper Routing Engine 3.0 Released

Today we are happy to announce the new release of our open source routing engine. It is again packed with new features, bug fixes and nice improvements. This time we put our main focus on the custom routing feature that we already included in version 1.0 about a year ago. With the GraphHopper engine you […]

October News from GraphHopper

It is and was a special year, and we almost forgot to send out a newsletter, even though we developed many new features. You can subscribe to the low frequent newsletter when you register here. The biggest change is that all our routing-related APIs like the Matrix API, Isochrone API, Routing API and Route Optimization […]

GraphHopper Routing Engine 2.0 Released

Today we are releasing version 2.0 of the open source GraphHopper routing engine. GraphHopper calculates optimal routes in road networks, for example taken from OpenStreetMap, for many different vehicle types and finds the ideal itinerary when using public transit. It is released under the Apache License 2.0 and you can easily try its road routing […]