Credits
This guide stands on open data and open source. Thank you to everyone who maps, publishes and maintains it.
Maps and places
- Places, rail lines, stations and entrances: © OpenStreetMap contributors, available under the Open Database Licence (ODbL).
- Street-map tiles: OpenFreeMap, built on OpenMapTiles © OpenMapTiles, data © OpenStreetMap contributors.
- Coastlines: Natural Earth (public domain).
- Ward boundaries: 国土数値情報 (行政区域データ), Ministry of Land, Infrastructure, Transport and Tourism (MLIT).
Addresses
- Building and parcel positions: アドレス・ベース・レジストリ (Address Base Registry), Digital Agency of Japan, via Geolonia japanese-addresses-v2, CC BY 4.0.
- Block positions: 位置参照情報 (街区レベル), MLIT.
- Chōme centres: Geolonia japanese-addresses, CC BY 4.0.
Trains
- Departure times (when shown): 公共交通オープンデータセンター (Open Data Challenge for Public Transportation in Tokyo, ODPT). Timetable data may differ from actual service.
- Intercity times and fares are typical values, curated by hand.
Software and type
- MapLibre GL JS (BSD-3-Clause), Vite, Bun, Hono, Better Auth, Drizzle ORM, PostgreSQL and PostGIS.
- Type: Zen Maru Gothic and Nunito (SIL Open Font License), served from this site via Fontsource.
- Day plans by Claude, from Anthropic.