BUILT WITH OPEN FOUNDATIONS
Credit where it’s due.
RouteWasm packages open mapping tools and hosted data. These projects and their contributors make it possible.
Valhalla
The routing engine, compiled to WebAssembly. Source & MIT license ↗
MapLibre GL JS
The interactive vector map renderer. BSD 3-Clause license · Project ↗
Protomaps & PMTiles
Basemap cartography, the PMTiles archive format and client. The Frankfurt demo map is an extract of the September 9, 2026 Protomaps build, hosted by RouteWasm. Basemap source & BSD 3-Clause license ↗ · PMTiles source & BSD 3-Clause license ↗
OpenStreetMap contributors
Map and routing data © OpenStreetMap contributors, available under the Open Database License. Copyright, attribution & ODbL ↗
Natural Earth & Noto
Protomaps includes public-domain Natural Earth data. Map labels use Noto Sans, licensed under the SIL Open Font License.