Welcome to Tokyo Commuter Networks!  This is by no means an exhaustive list of every transit line in Metro Tokyo, though all major JR East, Tokyo Metro, and private lines are represented. Routes not appearing here include all shinkansen routes, JR Shonan-Shinjuku Line, JR Utsonomiya Line, Narita Express, as well as a small handful of other line sharing routes.

• Coverage areas of the two formats below is roughly the same, given the constraints of a rectangle.
• This site is officially current to January 2006, beyond which I have not had time to maintain it. Therefore it does not include the recent Yurikamome extension to Toyosu or the Line 13 extension from Ikebukuro to Shibuya coming later this year. If I pick up more Flash skills and have spare time I may add to it.