node package manager
Share your code. npm Orgs help your team discover, share, and reuse code. Create a free org »


Open Stage Control is a libre desktop OSC bi-directionnal control surface application. It's built with HTML, JavaScript & CSS and run as a Node / Electron web server that accepts any number of Chrome / Chromium / Electron clients.

Download the latest release (prebuilt binaries for Linux, OS X and Windows)

Try the online demo (Chrome 50+ required)

Controlling Ardour


The documentation is located at


  • multiplatform desktop server application with built-in client interface
  • mouse & multitouch interfaces compatible with Chrome 50 or later
  • all the widgets you need !
  • built-in live editor
  • clients synchronization
  • deep customization possibilities such as theming and messages filtering
  • true control over what the widgets send
  • midi inputs/outputs

Supported platforms

The server can run on all platforms supported by Electron. The only supported client browsers are the one provided with the server and Chrome/Chromium version 50 or later. For iOS devices, the minimal version required is 9.3.

License & credits

Copyleft © Jean-Emmanuel @ AMMD 2017

This program is a free software released under the GNU/GPL3 license, it relies on the use of several other free softwares, including Node.js, Electron, osc.js,, browserify, exorcist, express, node-sass, jQuery, jQuery-UI, Font Awesome, source-map, mathjs


BrowserStack helps debugging Open Stage Control by providing a complete suite of browser emulators for Android, iOS and Windows, how awesome is that ? Quite very much indeed !