Apps with 'Network Graph' feature

vnStat is a console-based network traffic monitor for Linux and BSD that keeps a log of network traffic for the selected interface(s). It uses the network interface statistics provided by the kernel as information source.

InfraNodus can visualize any research notes, ideas, texts, even the Google search results on a certain topic as a text network. The words are the nodes and their co-occurrences are the connections between them.

vis.js is a dynamic, browser based visualization library. The library is designed to be easy to use, to handle large amounts of dynamic data, and to enable manipulation of and interaction with the data.