any_map

One API. Any map backend. Swap between Google Maps, MapLibre, and OpenStreetMap at config level.

Why any_map?

The Flutter maps ecosystem is fragmented. Each map provider has its own API, its own widget, its own marker/polyline classes. Switching providers means rewriting your entire map layer.

any_map solves this with a single unified API:

• One AnyMapWidget — works with any backend
• Built-in marker clustering — no extra package needed
• Turn-by-turn routing — OSRM, Valhalla, GraphHopper out of the box
• JSON style support — custom map themes from JSON, just like Google Maps
• Zero vendor lock-in — swap backends in one line

Quick Start

# pubspec.yaml
dependencies:
  any_map: ^0.1.0
  any_map_maplibre: ^0.1.0  # Free, no API key!
  # OR
  any_map_google: ^0.1.0    # Requires Google Maps API key
  # OR
  any_map_osm: ^0.1.0       # Free, uses OpenStreetMap tiles

import 'package:any_map/any_map.dart';
import 'package:any_map_maplibre/any_map_maplibre.dart';

AnyMapWidget(
  adapter: MapLibreAdapter(
    styleUrl: 'https://demotiles.maplibre.org/style.json',
  ),
  initialCamera: AnyCameraPosition(
    target: AnyLatLng(37.7749, -122.4194),
    zoom: 12,
  ),
  markers: [
    AnyMarker(
      id: 'sf',
      position: AnyLatLng(37.7749, -122.4194),
      title: 'San Francisco',
    ),
  ],
  onMapCreated: (controller) {
    // Same controller API regardless of backend
    controller.animateCamera(AnyCameraPosition(
      target: AnyLatLng(34.0522, -118.2437),
      zoom: 10,
    ));
  },
  onTap: (latLng) => print('Tapped $latLng'),
)

Swap Backends in One Line

// MapLibre (free, open source)
adapter: MapLibreAdapter(styleUrl: 'https://...')

// Google Maps (requires API key)
adapter: GoogleMapsAdapter()

// OpenStreetMap (free, no API key)
adapter: OsmAdapter()

That's it. Your markers, polylines, polygons, circles, callbacks — everything else stays the same.

Marker Clustering

Built-in grid-based clustering engine (inspired by Supercluster):

final engine = AnyClusterEngine(
  config: ClusterConfig(radius: 80, maxZoom: 18),
);
engine.load(myMarkers);

// Get clusters for current viewport
final clusters = engine.getClusters(visibleBounds, zoom: currentZoom);

for (final cluster in clusters) {
  if (cluster.isSingle) {
    // Render as normal marker
  } else {
    // Render as cluster bubble: "${cluster.count} markers"
  }
}

Or use the AnyClusterLayer widget for automatic clustering on top of any map.

Turn-by-Turn Routing

Three providers included — all with the same API:

// OSRM (free, self-hostable, no API key)
final provider = OsrmRoutingProvider();

// Valhalla (free, self-hostable)
final provider = ValhallaRoutingProvider(baseUrl: 'https://your-valhalla.com');

// GraphHopper (free tier available)
final provider = GraphHopperRoutingProvider(apiKey: 'YOUR_KEY');

// Same API for all:
final result = await provider.getRoute(AnyRouteRequest(
  origin: AnyLatLng(37.7749, -122.4194),
  destination: AnyLatLng(34.0522, -118.2437),
  mode: AnyTravelMode.driving,
));

if (result.isSuccess) {
  final route = result.route!;
  print('${route.distanceText} • ${route.durationText}');
  print('${route.steps.length} turn-by-turn steps');

  // Draw on map instantly:
  controller.addPolylines([route.toPolyline()]);
}

Custom Map Styles (JSON)

// Google Maps JSON style
AnyMapWidget(
  style: AnyMapStyle.fromJson(myGoogleStyleJson),
  ...
)

// MapLibre style URL
AnyMapWidget(
  style: AnyMapStyle.fromUrl('https://my-style-server.com/style.json'),
  ...
)

// Built-in presets
AnyMapWidget(
  style: AnyMapStyle.fromPreset(AnyMapStylePreset.dark),
  ...
)

Full API Surface

Feature	API
Map widget	AnyMapWidget
Camera control	AnyMapController.animateCamera(), moveCamera(), fitBounds()
Markers	AnyMarker — title, snippet, custom icon widget, rotation, drag
Polylines	AnyPolyline — color, width, dash pattern, geodesic
Polygons	AnyPolygon — fill, stroke, holes
Circles	AnyCircle — center, radius in meters
Clustering	AnyClusterEngine, AnyClusterLayer
Routing	OsrmRoutingProvider, ValhallaRoutingProvider, GraphHopperRoutingProvider
Styles	AnyMapStyle.fromJson(), .fromUrl(), .fromPreset()
Callbacks	onTap, onLongPress, onCameraMove, onCameraIdle
Conversion	screenToLatLng(), latLngToScreen()

Packages

Package	Description	Free?
any_map	Core abstractions, clustering, routing	-
any_map_maplibre	MapLibre GL adapter	Yes
any_map_google	Google Maps adapter	API key required
any_map_osm	OpenStreetMap (flutter_map) adapter	Yes

License

MIT