Licenses

GraphHopper licensed under the Apache license, Version 2.0

The core module includes the following software:

slf4j.org - SLF4J distributed under the MIT license.
com.carrotsearch:hppc (Apache license)
SparseArray from the Android project (Apache license)
Snippets regarding mmap, vint/vlong and compression from Lucene (Apache license)
XMLGraphics-Commons for CGIAR elevation files (Apache License)
Apache Commons Lang - we copied the implementation of the Levenshtein Distance (Apache License)
Apache Commons Collections - we copied parts of the BinaryHeap (Apache License)
java-string-similarity - we copied the implementation of JaroWinkler (MIT license)
com.fasterxml.jackson.core:jackson-annotations (Apache License)
org.locationtech:jts (EDL), see #1039
AngleCalc.atan2 from Jim Shima, 1999 (public domain)
list of Java keywords in EncodingManager from janino compiler (BSD-3-Clause license)
protobuf - New BSD license
OSM-binary - LGPL license
Osmosis - public domain, see osmosis-copying.txt under core/files

reader-gtfs:

reader-shp:

tools:

web:

org.eclipse.jetty:jetty-server (Apache License)
com.fasterxml.jackson.core:jackson-databind (Apache license)
com.google.inject (Apache license)
some images from mapbox https://www.mapbox.com/maki/, BSD License, see core/files

Data

source	license	used as default	included in repo
OpenStreetMap data for the road network	ODBL	yes	yes
SRTM elevation	public domain, acknowledgement	no	yes
CGIAR elevation	allowed usage for GraphHopper	no	no
SRTMGL1 elevation	acknowledgement	no	no
OpenTopography mirror for SRTMGL1	acknowledgement OpenTopoGraphy and data source + SRTMGL1	no	no
GMTED	public domain, acknowledgment	no	no
Tilezen Joerd (Skadi)	acknowledgment	no	no