Tuesday, December 08, 2009

Google Web Toolkit 2.0 - now with Speed Tracer

Tonight at a Google Campfire One we released Google Web Toolkit 2.0, aiming to do two main things for developers:
  • Make it easier to build faster apps
  • Speed up the overall development cycle
This is a very exciting release because it's the cumulation of a year and a half working with teams like Google Wave, AdWords, and Orkut (among many others inside and outside of Google) to evolve GWT to meet the needs of today's web applications. There are many features and improvements, but let me call out three which we're especially excited about.

Faster Apps

Introducing: Performance profiling with Speed Tracer
The first thing you'll notice in 2.0 is that we've added a new tool called Speed Tracer. Speed Tracer is a performance profiler for Google Chrome that allows developers to see what's going on in a way which hasn't been possible before. We've worked closely with the Webkit community to add instrumentation in the browser to enable developers to gain deep insights into how code behaves, uncovering problems which have been hidden up till now.

Introducing: Incremental app download with code splitting
Another feature we've added into Google Web Toolkit is developer-guided code splitting. Code splitting allows a developer to split up their application for much, much faster startup times. Imagine if you have a settings page that users go to once a week. Why download that JavaScript when the application starts up? With code splitting, your users download just the JavaScript they need to get started.

Faster Development

Introducing: Declarative UI with UiBinder
UiBinder is a new declarative UI framework in Google Web Toolkit which enables rapid design iteration and a clean separation between presentation layer and application logic.

Dive into the details and more features in GWT 2.0.


  1. This comment has been removed by the author.

  2. We are going to include this in our new build today! RC2 of QAFE (www.qafe.com). Thanks GWT Team!

  3. Excellent. Already converted our new app. Looks good. Also love the new development feature. Thank you GWT!!!

  4. cool ... now the only disadvantage left at da moment wud be da absence of addons as compared to firefox. - hope it'll cum soon ..at least da streaming video downloader part .

  5. Google web toolkit 2.0 is a new addition into the world of internet computing. An application can developed with a rapid pace by following all of its development cycles.Shopping Cart

  6. I wish the speed tracer for chrome supported the "OWN TIME":
    time spent within a function Excluding nested calls.
    this accurately tells which functions take longer to execute....