Atheris
Open-source traffic analyzer / visualizer
Finally, the binary release of the version 0.2.5 is out. Now, Atheris comes with an extensible, modular plug-in architecture, i.e. you can easily write your own graphical analyzer for Atheris. The documentation on how to write you own analyzer will follow in the next days.
If you are running a non Debian-based Linux, download the zip file and follow the instructions in the README file.