Validates schema conformance against the MSD JSON Schema — not business/semantic validity. (No Güteklassen or assessment logic.)
Runs entirely in your browser; your file is never uploaded, sent, or stored.
The feed is generated in your browser from the validated file; GTFS-Flex conformance (0 notices) is verified in CI, not in the browser.
This file declares no map geometry to display.
The service area is drawn from the validated file in your browser. No background map is loaded unless you choose to — your file and the area's location stay in your browser by default. Constraints (e.g. excluded sub-areas) are not drawn, so this shows the declared service area, not net coverage.