# Erratic Maps

> Erratic Maps is a free, browser-based map poster and wallpaper generator. Pick
> any location on Earth, style it with themes and typography, and export
> print-ready map art as PNG, PDF, or SVG. No sign-up, no account. It is based
> on the Terraink source code (AGPL-3.0).

Everything runs client-side in the browser — map rendering and export happen on
the user's device, and posters are never uploaded to a server. Fonts are
self-hosted, so choosing a typeface makes no third-party request. Map data comes
from OpenStreetMap, served as OpenMapTiles vector tiles by OpenFreeMap and
rendered with MapLibre GL.

What it does:
- Search any city, region, or address by name, or enter coordinates directly
- Style roads, water, parks, and building footprints with per-layer colors
- Choose from curated themes or build a custom palette
- Set city/country labels in one of nine bundled typefaces
- Export as PNG, PDF, or layered SVG

Erratic Maps is a design tool, not a data source — there is no public API, and
the useful output is a poster file produced through the interface.

## Main

- [Erratic Maps](https://maps.erraticl.uk): The app itself — create and export a map poster
- [Source code](https://github.com/ErraticL/erratic-maps): AGPL-3.0 licensed fork of Terraink
- [Terraink](https://github.com/yousifamanuel/terraink): The upstream project this app is based on

## Optional

- [OpenStreetMap](https://www.openstreetmap.org/copyright): Source of all map data, ODbL licensed
- [OpenMapTiles](https://openmaptiles.org): Vector tile schema the map styles are built against
- [OpenFreeMap](https://openfreemap.org): Tile hosting the app fetches at runtime
- [Nominatim](https://nominatim.openstreetmap.org): Geocoding for location search
- [MapLibre GL](https://maplibre.org): Rendering engine used for the map canvas