Privacy Policy

Terms of Service | Privacy Notice

Last modified: May 11th, 2013

Google is a member of the GWT Open Source Project and operates this GWT website as a contribution to GWT. The Google Privacy Policy applies to Google’s operation of this website.

The Google Privacy Policy describes how we treat personal information when you use Google services, including information provided when you use GWT. In addition, the following describes privacy practices specific to GWT.

Information we collect

When you use GWT’s development mode server or compiler, the application periodically sends a unique timestamp ID and version number of your product back to Google’s servers so that the application can notify you of new versions. The timestamp ID is generated the first time you use the compiler or development mode server. As a part of this request, Google will log the timestamp ID and the version number.

The GWT developer plugin checks for updates once a day or as configured on the respective browser, sending the current plugin version number. As a part of this request, Google will log the plugin version number.

We won’t log cookies or personal information about you, and we will only use any data we log in the aggregate to operate and improve GWT.


We use this information internally to determine usage volume of the development mode server and compiler in the aggregate.

Your Choices

You may choose to not use the development mode server and uninstall the browser plugin at any time. You may use just the GWT compiler with the flag “-XdisableUpdateCheck” to compile your code directly to JavaScript. This does not send a request for the most recent version of GWT.

More Information

Google adheres to the US Safe Harbor privacy principles. For more information about the Safe Harbor framework or our registration, see the Department of Commerce’s website.

Further information about GWT is available here.

For more information about our privacy practices, go to the full privacy policy. If you have additional questions, please contact us any time. Or write to us at:

Privacy Matters c/o Google Inc. 1600 Amphitheatre Parkway Mountain View CA 94043 (USA)