It’s a great day when Internet giant Google open sources the programs it uses to build well-known favourites such as GMail, Docs and Google Maps. It announced on its blog that it will be making a lot of it’s own development software available to developers all over the world. This release comes as Google are undoubtedly upgrading their own tools especially with the upcoming launch of Google Wave.

The first of the three tools they released is called Closure Compiler which helps developers trim down code and optimize it for better performance. There is also a plug-in for Firefox released alongside this so they can view heir Java Script code in the browser.

The second one is called Library which is a tool to help build Java Script Apps. Here is what Google said on their official blog about the program:

The Closure Library is a JavaScript library that provides many features that are useful for building web applications across browsers. It helps to abstract browser differences and provides clean class and function interfaces for common tasks. Besides DOM interaction