The Togglz source code is hosted on GitHub. If you want to have a look at the source code or want to contribute the the project check out this page:
https://github.com/togglz/togglz
To clone the Togglz repository just use the following command:
$ git clone git://github.com/togglz/togglz.git
Instead of cloning the repository using Git you can also download the source code as a regular ZIP file: