Change the map language

lang selects a language the tiles carry. This map is centred on Montréal with French labels. Use ja, ko, zh-Hans, or zh-Hant for native Japanese, Korean, Simplified Chinese, or Traditional Chinese labels. Region tags such as zh-TW are accepted. Missing translations fall back to available local or English names.

import { Unmap } from "@unmap/sdk";

const unmap = new Unmap({
  key: "um_live_...",
  container: "map",
  style: "base",
  mode: "light",
  lang: "fr",
  center: [-73.5673, 45.5017],
  zoom: 12,
});

Indigenous names are not a language code. The tiles carry them on the feature (name2), so Iqaluit renders "Iqaluit / ᐃᖃᓗᐃᑦ" regardless of lang. Leave lang off and the gateway follows Accept-Language.

Maps API lists how labels are chosen.