The Standard ROS JavaScript Library
JavaScript Shell
Latest commit ac61584 Feb 14, 2017 @cjds cjds committed with rctoris Updating the licence so SPDX stops complaining (#249)
License name updated to match the LICENSE file. This is in reference to this change in NPM npm/npm#8918

roslibjs Build Status

The Standard ROS JavaScript Library

For full documentation, see the ROS wiki or check out some working demos.

JSDoc can be found on the Robot Web Tools website.

This project is released as part of the Robot Web Tools effort.


Pre-built files can be found in either roslib.js or roslib.min.js.

Alternatively, you can use the current release via the Robot Web Tools CDN: (full) | (min)


  1. Check that connection is established. You can listen to error and connection events to report them to console. See examples/simple.html for a complete example:

    ros.on('error', function(error) { console.log( error ); }); ros.on('connection', function() { console.log('Connection made!'); });

  2. Check that you have the websocket server is running on port 9090. Something like this should do:

    netstat -a | grep 9090


roslibjs has a number of dependencies. You will need to run:

npm install or bower install

Depending on your build environment.


Checkout for details on building.


roslibjs is released with a BSD license. For full terms and conditions, see the LICENSE file.


See the file for a full list of contributors.