Service to compare two sitemaps?

Question

Cartography

Problem: There is a current site and a new site. There are a lot of sections (more than 500). A new structure (new sitemap) has been created for the new site. There is a question about transferring information from the old site to the new one. To do this, we plan to map each section in the old structure to the new sitemap. And then decide to transfer automatically according to certain rules or through the content manager.
Looking for: a service in which it was convenient to compare two structures. I don't quite understand what it should look like. Most likely on the left is the old one, on the right is the new one and the arrows are transitions. It is important to be able to move the mouse, because part of the work will be done directly by the customer.
Both structures are now listed in XMind. Tried in Dia - uncomfortable

Answer 1

some kind of diff, no?

Answer 2

Try A1 Sitemap generator . Perhaps it will help you.