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GraphHopper Build Status

Java road routing engine

Purpose

Solving shortest path (related) problems is the main goal. GraphHopper is a routing engine which makes implementing shortest path problems in Java easier and much more memory efficient than a naive implementation. GraphHopper is tuned for road networks at the moment but can be useful for public transport problems in the future as well.

Features

  • 100% Java and 100% Open Source
  • Memory efficient
  • Easy to use and small library (~3MB)
  • Works on the desktop, from the web and even offline on Android
  • Well tested