Source text below: By petitetre - https://forums.x-plane.org/index.php?/files/file/25569-external-moving-map/
X-Plane's map is nice but you can't look at it without pausing the sim. and it doesn't have as many details as, say, Google Maps
Ever felt the need for a moving map on your other screen, computer, tablet or phone, where you could watch your plane move while flying it, and have all the city names and stuff ? And X-Plane's navaids ?
Well here it is ! This little utility for Windows, Mac and Linux uses X-Plane's Internet data output to show your craft on a Google Map in your favorite Web browser. When used with a multiplayer configuration (up to 20 planes), it can be used as an ATC display as well.
IMPORTANT: this software is not the property of www.xplanehelp.co.uk - I have featured this software because of it's ease of use and it does what I need it to do.
How to setup
Go to the The External Moving Map page - the link below: