Timetable importer
Turns public transport timetables in GTFS (the open format most operators publish) into tables DataBods opens: stops on a map, trips, and every call with its arrival and departure. Feeds are read in your browser; nothing is uploaded. Large feeds (a whole country) work, but take a minute.
Where to find feeds: the Mobility Database and Transitland list thousands. In England, the Bus Open Data Service has every local bus by region. Switzerland: opentransportdata.swiss. Check each feed's licence and credit its publisher.