Visualizing the SiteMap of a large (page number) website

Question

I'm looking for a tool or service that can spider a web domain with a large number of pages, create a sitemap, and then visualize that map in a way that will help me see, understand and group content (I'm new to the site) Something like a tree-view or other standard Site Map visualizations would be great. I am yet unable to find a tool that does this (I've found plenty of things to spider the site and create an xml file, nothing to visualize it)

Thanks!

Answer 1

The software Gephi and one of its plugins provides exactly the function that you need.

Answer 2

For visualization you can check D3.js

For example Force-Directed Graph