You have several ways to explore the latest sources for Jitsi.

Browse through the web repository

GitHub provides a way to browse the Git repository online.

Check out source code with a Git client

Using a command line client execute:

git clone https://github.com/jitsi/jitsi.git

Feel free to use your favorite Git client to obtain the source code from the same URL.

Check out source code using an SVN client

Using a command line subversion client excecute:

svn checkout https://github.com/jitsi/jitsi.git

Note that this is a read-only repository only. If you one day become a Jitsi committer you would need to switch to Git.

Download a source snapshot from stable release
(or a nightly snapshot)