README.md

GraphHopper

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