Google Web Toolkit Original author(s) Google Initial release May 16, 2006 (2006-05-16) Stable release 2.8.2 / October 19, 2017 (2017-10-19) Repository https://github.com/gwtproject/gwt Written in Java Operating system Linux, Windows, OS X, FreeBSD Available in Java Type Ajax framework License Apache License 2.0 Website www.gwtproject.org