Getting Started

Running GAE Studio on AppEngine

  1. Download the latest war of GAE Studio from our Drive folder
  2. Extract the content of the war to your preferred location.
  3. Download the latest version of Google Appengine SDK for Java.
  4. Extract the content of the zip to your preferred location.
  5. Using the command line, execute: /appengine-java-sdk-x.y.z/bin/ -A __application_id__ -M gaestudio update /path/to/unpacked/gae_studio
  6. Replace __application_id__ by your application ID. You may be asked to enter your email and password.

GAE Studio will be available at

Running GAE Studio locally (Java runtime)


App Engine configuration files

  • Create a file named appengine-application.xml in /src/META-INF

        <?xml version="1.0" encoding="utf-8" standalone="no"?>
        <appengine-application xmlns="">
  • Create a file named application.xml in /src/META-INF

        <?xml version="1.0" encoding="utf-8"?>
        <application xmlns=""
  • In your appengine-web.xml file, add <module>default</module>

POM file modifications

  • Add a property : <gae-studio.version>1.0</gae-studio.version>
  • In the maven-war-plugin configuration, add :

            %regex[.*?gae-studio-${gae-studio.version}.*],**/gaestudio/**, *.war, *.war/**
  • Add the appengine-maven-plugin if you're not already using it

  • Create a profile named gae-studio-ear

                            <packagingIncludes>META-INF/**, %regex[.*?\.war/.*]</packagingIncludes>
                <!-- GAE Studio -->

Simply run mvn clean install appengine:devserver -Pgae-studio-ear. This will start both your application and the GAE Studio module.

Using the App Engine SDK

Running in development mode implies converting your application to a module. Then, you need to create an EAR
application containing your app and GAE Studio. The official App Engine documentation explains how to create the EAR application.
GAE Studio is already declared as a module called 'gaestudio'.
You can run this EAR using the Java Appengine Tools (Google Appengine SDK for Java): /appengine-java-sdk-x.y.z/bin/ /path/to/my/ear.
The development server will start your app and GAE Studio on two different ports. They will be displayed in the
console output. ie: INFO: Module instance gaestudio is running at http://localhost:8081/