Source code for this application, available on GitHub.

This tool was designed and built collaboratively with Claude, Anthropic's AI assistant.

All map data — roads, paths, place names, routing network — is from the OpenStreetMap project, contributed by volunteers worldwide. Used under the Open Database Licence, which requires attribution and share-alike for derivative databases. Attribution is shown on the map.

Vector tile hosting and the Bright map style. Free and open-source tile infrastructure built on OpenMapTiles and OpenStreetMap data. Attribution is required and displayed on the map: "OpenFreeMap © OpenMapTiles Data from OpenStreetMap".

Vector tile schema underlying the tiles served by OpenFreeMap. Developed by MapTiler and the OpenMapTiles community. The CC-BY 4.0 component requires on-screen attribution "© OpenMapTiles" on every map — satisfied via the MapLibre attribution control.

Cycle-oriented raster map style rendered from OpenStreetMap data. Style source code is BSD 3-clause. Tiles are served by OpenStreetMap France under the OSM tile usage policy, which requires visible attribution and a reasonable usage rate.

Interactive map library. Created by Volodymyr Agafonkin and maintained by the Leaflet community.

WebGL-accelerated vector tile renderer. Open-source fork of Mapbox GL JS, maintained by the MapLibre community.

Binding layer that integrates MapLibre GL JS as a Leaflet tile layer.

Primary cycling routing engine. Calculates optimal bike routes using pre-processed OpenStreetMap data with configurable profiles. Uses the public brouter.de API.

Fallback routing engine when BRouter is unavailable. Open-source routing engine hosted by FOSSGIS e.V. on openstreetmap.de, using OpenStreetMap data.

Address search and geocoding service powered by OpenStreetMap data. Hosted by the OpenStreetMap Foundation. Used in accordance with the Nominatim usage policy (max 1 req/s, triggered by user input only).

Read-only OpenStreetMap data API used to fetch cycling route overlays (ICN, NCN, RCN, LCN networks). Data is © OpenStreetMap contributors under ODbL.

Icons used throughout the interface (map switcher, snapping, elevation, scissors). Icons are licensed CC BY 4.0 (attribution required — satisfied here); web fonts under SIL OFL 1.1; CSS/code under MIT. © Fonticons, Inc.

Monospaced typeface designed by Mike Abbink, Paul van der Laan, and Pieter van Rosmalen for IBM. © 2017 IBM Corp.

Proportional sans-serif designed by Florian Karsten (2018), based on Space Mono by Colophon Foundry for Google Fonts. © 2016 Google Inc. & Colophon Foundry; © 2018 Florian Karsten.

Used for labels on the Bright vector map, served via the OpenMapTiles font CDN. Designed by Chris Simpson.

Privacy-friendly, cookie-free web analytics. No personal data collected. Developed by Martin Tournoij.