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Project OSRM: C++ backend
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The repository provides a Leaflet (1) based web frontend to the Open Source Routing Machine (Project-OSRM (2)). The frontend is implemented in Javascript. Data is fetched from routing and geocoding servers using JSONP queries. The website is XHTML 1.0 Strict compliant. A deployed version of the the web frontend can be seen at (3).


The frontend should work directly as provided. Several settings - including the URL for the routing server and the geocoder server - can be specified in OSRM.config.js. Different tile servers can be specified in OSRM.Map.js. Note that the URL shortener used for generating route links only works with URLs pointing to the official Project-OSRM website.


  • The master branch will always point to the latest released version of the frontend.
  • The develop branch should always point to a working version with new features and bugfixes (think of it as a nightly-build).
  • Other branches contain various work in progress.


Please use the OSRM-Project bug tracker (4) for submitting any bug reports or feature requests.

Integration into Project-OSRM repository

The Project-OSRM repository already contains the frontend repository as a submodule. It will always point to the latest deployed version. To successfully work a repository that contains submodules, use the following git commands (available in git 1.7.1+):

  • git clone --recursive
    to clone a repository and the contained submodules

  • git pull && git submodule update
    to pull the latest version of the repository and update its submodules if required

Note that the frontend can also be checked out independently of the Project-OSRM repository.


(1) Cloudmade Leaflet:
(2) Project OSRM:
(3) Project OSRM Frontend:
(4) Project OSRM Bugtracker:

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