HSLHSL Developer Community

HSL Developer Community is open for all individuals and organisations interested in the Open Data and Open Source software regarding Helsinki Region Transport HSL or wider. HSL is the public authority that plans and procures the public transport (ferry, tram, metro, train, bus) within its member municipalities (Helsinki, Vantaa, Espoo, Kauniainen, Kirkkonummi, Kerava, and Sipoo).




Journey planning

Digitransit (project page)

HSL's next-generation journey planner, in cooperation with Finnish Transport Agency's national Journey.fi.

Live maps

HSL Navigator

HSL Navigator is a fully open-source service based solely on open data.

(The prototype works best in the Firefox, Chrome, Android and iPhone browsers. Windows Phone 7.8 is unreasonable to support.)

You can leave feedback on HSL's Feedback Forum (in Finnish).



HSL travel card

Collaborative development projects


Open data Open API
Routes and timetables JORE, GTFS, Kalkati Old Reittiopas, New Digitransit
(OpenTripPlanner REST & GraphQL)
Service changes Poikkeusinfo, HSL News
Realtime stop predictions Omat lähdöt
Tickets, orders Kutsuplus SMS
Realtime positions MQTT, HSL Live,
navigator-server (SIRI & REST)
Observed stop times LINFO
Vehicles Wifi MAC addresses
Coordinates Kutsuplus stops, POI database Pelias geocoder

Past community activities