Patrick Schulz

Projects / Open source

Mobility4BW

Unofficial Flutter app and backend for the open mobility data of Baden-Württemberg.

Mobility4BW showing parking spaces in central Stuttgart, with the dataset menu open.
Mobility4BW showing parking spaces in central Stuttgart, with the dataset menu open.

MobiData BW publishes open mobility data for Baden-Württemberg, but there was no mobile client for it. Mobility4BW started at the Codevember 2025 hackathon to close that gap. The app for Android and iOS brings together transit stops, bike sharing, charging infrastructure and parking information.

Behind the app runs a backend of its own:

  • a FastAPI service
  • self-hosted geocoding based on LGL-BW data
  • self-hosted OpenStreetMap vector tiles built with Planetiler, served with TileServer GL and styled in Maputnik

The code is licensed under Apache 2.0. The data comes from MobiData BW under the Data License Germany (DL-DE-BY 2.0). Mobility4BW is an independent project and is not affiliated with NVBW GmbH or any government institution.