Current is a project mainly written in JavaScript, it's free.
Node.js app for visualizing http requests on a lan
Runs with Node v0.1.102
To run current you need to remember 2 things:
Make sure the interface is set correctly in the tcpdump command:
On a Macbook en0 = ethernet en1 = wifi (usually)
Always run it with sudo:
sudo node pollDataServer.js