There are 2 repositories under gtfs-visualizer topic.
:bus: A collection of awesome gtfs libraries, resources and other things.
Repository for the Data Science Campus Access to Services project (linked to datasciencecampus/graphite and datasciencecampus/propeR)
Data viewer based on GTFS format.
Android application for viewing and searching for public transport schedules using the standard GTFS format
An attempt to automatize drawing timetables of stops in GTFS feeds
NPM module part of a Django app, ShapeEditor (GTFS editor)
Basado en onebusaway-gtfs-realtime-visualizer
An OOP Project that uses open data from NMBS