TrackGen randomly generates fully-playable tracks for Trackmania (2020), right down to naming it for you! The generation parameters are highly customisable and allow you to fine-tune the sorts of tracks that are generated.
While the map files are not generated directly, the display will enable you to recreate the map inside Trackmania's built-in editor. I also encourage that you decorate it before saving!
Follow the project on Github for the latest updates.
-/+: Move down/up layer
</>: Rotate left/right
[/]: Previous/next piece
Z: Zoom in/out
G: Generate