diff --git a/assets/2.0x/gps_map_pin.png b/assets/2.0x/gps_map_pin.png
new file mode 100644
index 00000000..a76280a7
Binary files /dev/null and b/assets/2.0x/gps_map_pin.png differ
diff --git a/assets/3.0x/gps_map_pin.png b/assets/3.0x/gps_map_pin.png
new file mode 100644
index 00000000..6a1eceab
Binary files /dev/null and b/assets/3.0x/gps_map_pin.png differ
diff --git a/assets/gps_map_pin.png b/assets/gps_map_pin.png
new file mode 100644
index 00000000..0920af14
Binary files /dev/null and b/assets/gps_map_pin.png differ
diff --git a/lib/l10n/app_en.arb b/lib/l10n/app_en.arb
index d8d754a2..b63ef9bc 100644
--- a/lib/l10n/app_en.arb
+++ b/lib/l10n/app_en.arb
@@ -352,6 +352,7 @@
 	"settingsScreenBrightnessDescription": "Override system brightness level",
 	"settingsForceRotationTitle": "Ignore rotation lock",
 	"settingsForceRotationDescription": "Rotate the screen even when auto rotation is disabled",
+	"settingsMapProviderTitle": "Map provider",
 	"settingsAlbumTitle": "Album",
 	"settingsAlbumDescription": "Customize albums",
 	"settingsAlbumPageTitle": "Album settings",
diff --git a/lib/l10n/untranslated-messages.txt b/lib/l10n/untranslated-messages.txt
index 8e1232fa..a873507b 100644
--- a/lib/l10n/untranslated-messages.txt
+++ b/lib/l10n/untranslated-messages.txt
@@ -8,6 +8,7 @@
     "settingsShareFolderDialogDescription",
     "settingsShareFolderPickerDescription",
     "settingsServerAppSectionTitle",
+    "settingsMapProviderTitle",
     "settingsAlbumTitle",
     "settingsAlbumDescription",
     "settingsAlbumPageTitle",
@@ -59,6 +60,7 @@
     "settingsShareFolderDialogDescription",
     "settingsShareFolderPickerDescription",
     "settingsServerAppSectionTitle",
+    "settingsMapProviderTitle",
     "settingsAlbumTitle",
     "settingsAlbumDescription",
     "settingsAlbumPageTitle",
@@ -132,6 +134,7 @@
     "settingsScreenBrightnessDescription",
     "settingsForceRotationTitle",
     "settingsForceRotationDescription",
+    "settingsMapProviderTitle",
     "settingsAlbumTitle",
     "settingsAlbumDescription",
     "settingsAlbumPageTitle",
@@ -235,6 +238,10 @@
     "defaultButtonLabel"
   ],
 
+  "es": [
+    "settingsMapProviderTitle"
+  ],
+
   "fr": [
     "collectionsTooltip",
     "settingsAccountTitle",
@@ -252,6 +259,7 @@
     "settingsScreenBrightnessDescription",
     "settingsForceRotationTitle",
     "settingsForceRotationDescription",
+    "settingsMapProviderTitle",
     "settingsAlbumTitle",
     "settingsAlbumDescription",
     "settingsAlbumPageTitle",
@@ -344,6 +352,7 @@
     "settingsShareFolderDialogDescription",
     "settingsShareFolderPickerDescription",
     "settingsServerAppSectionTitle",
+    "settingsMapProviderTitle",
     "settingsAlbumTitle",
     "settingsAlbumDescription",
     "settingsAlbumPageTitle",
diff --git a/lib/mobile/gps_map.dart b/lib/mobile/google_gps_map.dart
similarity index 90%
rename from lib/mobile/gps_map.dart
rename to lib/mobile/google_gps_map.dart
index 5415f832..9809111b 100644
--- a/lib/mobile/gps_map.dart
+++ b/lib/mobile/google_gps_map.dart
@@ -2,8 +2,8 @@ import 'package:flutter/widgets.dart';
 import 'package:google_maps_flutter/google_maps_flutter.dart';
 import 'package:tuple/tuple.dart';
 
-class GpsMap extends StatelessWidget {
-  const GpsMap({
+class GoogleGpsMap extends StatelessWidget {
+  const GoogleGpsMap({
     Key? key,
     required this.center,
     required this.zoom,
@@ -41,7 +41,6 @@ class GpsMap extends StatelessWidget {
     );
   }
 
-  /// A pair of latitude and longitude coordinates, stored as degrees
   final Tuple2<double, double> center;
   final double zoom;
   final VoidCallback? onTap;
diff --git a/lib/mobile/platform.dart b/lib/mobile/platform.dart
index 394ce6a2..29cf634f 100644
--- a/lib/mobile/platform.dart
+++ b/lib/mobile/platform.dart
@@ -1,5 +1,5 @@
 export 'db_util.dart';
 export 'download.dart';
 export 'file_saver.dart';
-export 'gps_map.dart';
+export 'google_gps_map.dart';
 export 'universal_storage.dart';
diff --git a/lib/pref.dart b/lib/pref.dart
index 2a2b8780..abe63b6e 100644
--- a/lib/pref.dart
+++ b/lib/pref.dart
@@ -133,6 +133,11 @@ class Pref {
   Future<bool> setNewSharedAlbum(bool value) =>
       provider.setBool(PrefKey.newSharedAlbum, value);
 
+  int? getGpsMapProvider() => provider.getInt(PrefKey.gpsMapProvider);
+  int getGpsMapProviderOr(int def) => getGpsMapProvider() ?? def;
+  Future<bool> setGpsMapProvider(int value) =>
+      provider.setInt(PrefKey.gpsMapProvider, value);
+
   bool? isLabEnableSharedAlbum() =>
       provider.getBool(PrefKey.labEnableSharedAlbum);
   bool isLabEnableSharedAlbumOr(bool def) => isLabEnableSharedAlbum() ?? def;
@@ -308,6 +313,7 @@ enum PrefKey {
   isSlideshowShuffle,
   isSlideshowRepeat,
   isAlbumBrowserShowDate,
+  gpsMapProvider,
 }
 
 extension on PrefKey {
@@ -353,6 +359,8 @@ extension on PrefKey {
         return "isSlideshowRepeat";
       case PrefKey.isAlbumBrowserShowDate:
         return "isAlbumBrowserShowDate";
+      case PrefKey.gpsMapProvider:
+        return "gpsMapProvider";
     }
   }
 }
diff --git a/lib/web/gps_map.dart b/lib/web/google_gps_map.dart
similarity index 78%
rename from lib/web/gps_map.dart
rename to lib/web/google_gps_map.dart
index 4b4fb0bb..5248dc6e 100644
--- a/lib/web/gps_map.dart
+++ b/lib/web/google_gps_map.dart
@@ -6,8 +6,8 @@ import 'package:/nc_photos/mobile/ui_hack.dart' if (dart.library.html) 'dart:ui'
 import 'package:flutter/widgets.dart';
 import 'package:tuple/tuple.dart';
 
-class GpsMap extends StatefulWidget {
-  const GpsMap({
+class GoogleGpsMap extends StatefulWidget {
+  const GoogleGpsMap({
     Key? key,
     required this.center,
     required this.zoom,
@@ -15,15 +15,14 @@ class GpsMap extends StatefulWidget {
   }) : super(key: key);
 
   @override
-  createState() => _GpsMapState();
+  createState() => _GoogleGpsMapState();
 
-  /// A pair of latitude and longitude coordinates, stored as degrees
   final Tuple2<double, double> center;
   final double zoom;
   final void Function()? onTap;
 }
 
-class _GpsMapState extends State<GpsMap> {
+class _GoogleGpsMapState extends State<GoogleGpsMap> {
   @override
   initState() {
     super.initState();
@@ -45,5 +44,5 @@ class _GpsMapState extends State<GpsMap> {
   static const _apiKey = "";
 
   String get viewType =>
-      "mapIframe(${widget.center.item1},${widget.center.item2})";
+      "googleMapIframe(${widget.center.item1},${widget.center.item2})";
 }
diff --git a/lib/web/platform.dart b/lib/web/platform.dart
index 394ce6a2..29cf634f 100644
--- a/lib/web/platform.dart
+++ b/lib/web/platform.dart
@@ -1,5 +1,5 @@
 export 'db_util.dart';
 export 'download.dart';
 export 'file_saver.dart';
-export 'gps_map.dart';
+export 'google_gps_map.dart';
 export 'universal_storage.dart';
diff --git a/lib/widget/gps_map.dart b/lib/widget/gps_map.dart
new file mode 100644
index 00000000..1bfc570d
--- /dev/null
+++ b/lib/widget/gps_map.dart
@@ -0,0 +1,124 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/widgets.dart';
+import 'package:flutter_map/flutter_map.dart';
+import 'package:latlong2/latlong.dart';
+import 'package:nc_photos/mobile/platform.dart'
+    if (dart.library.html) 'package:nc_photos/web/platform.dart' as platform;
+import 'package:nc_photos/pref.dart';
+import 'package:tuple/tuple.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+enum GpsMapProvider {
+  // the order must not be changed
+  google,
+  osm,
+}
+
+extension GpsMapProviderExtension on GpsMapProvider {
+  String toUserString() {
+    switch (this) {
+      case GpsMapProvider.google:
+        return "Google Maps";
+
+      case GpsMapProvider.osm:
+        return "OpenStreetMap";
+    }
+  }
+}
+
+class GpsMap extends StatelessWidget {
+  const GpsMap({
+    Key? key,
+    required this.center,
+    required this.zoom,
+    this.onTap,
+  }) : super(key: key);
+
+  @override
+  build(BuildContext context) {
+    if (GpsMapProvider.values[Pref().getGpsMapProviderOr(0)] ==
+        GpsMapProvider.osm) {
+      return _OsmGpsMap(
+        center: center,
+        zoom: zoom,
+        onTap: onTap,
+      );
+    } else {
+      return _GoogleGpsMap(
+        center: center,
+        zoom: zoom,
+        onTap: onTap,
+      );
+    }
+  }
+
+  /// A pair of latitude and longitude coordinates, stored as degrees
+  final Tuple2<double, double> center;
+  final double zoom;
+  final void Function()? onTap;
+}
+
+typedef _GoogleGpsMap = platform.GoogleGpsMap;
+
+class _OsmGpsMap extends StatelessWidget {
+  const _OsmGpsMap({
+    Key? key,
+    required this.center,
+    required this.zoom,
+    this.onTap,
+  }) : super(key: key);
+
+  @override
+  build(BuildContext context) {
+    const double pinSize = 48;
+    final centerLl = LatLng(center.item1, center.item2);
+    return GestureDetector(
+      onTap: () {
+        launch(
+            "https://www.openstreetmap.org/?mlat=${center.item1}&mlon=${center.item2}#map=${zoom.toInt()}/${center.item1}/${center.item2}");
+      },
+      behavior: HitTestBehavior.opaque,
+      // IgnorePointer is needed to prevent FlutterMap absorbing all pointer
+      // events
+      child: IgnorePointer(
+        child: FlutterMap(
+          options: MapOptions(
+            center: centerLl,
+            zoom: zoom,
+            allowPanning: false,
+            enableScrollWheel: false,
+            interactiveFlags: InteractiveFlag.none,
+          ),
+          layers: [
+            TileLayerOptions(
+              urlTemplate: "https://tile.openstreetmap.org/{z}/{x}/{y}.png",
+              attributionBuilder: (_) {
+                return const Text(
+                  "© OpenStreetMap contributors",
+                  style: TextStyle(color: Colors.black),
+                );
+              },
+            ),
+            MarkerLayerOptions(
+              markers: [
+                Marker(
+                  width: pinSize,
+                  height: pinSize,
+                  point: centerLl,
+                  anchorPos: AnchorPos.align(AnchorAlign.top),
+                  builder: (context) => const Image(
+                    image: AssetImage("gps_map_pin.png"),
+                  ),
+                ),
+              ],
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  final Tuple2<double, double> center;
+  final double zoom;
+  final void Function()? onTap;
+}
diff --git a/lib/widget/settings.dart b/lib/widget/settings.dart
index 46dd5b69..3bdc01f7 100644
--- a/lib/widget/settings.dart
+++ b/lib/widget/settings.dart
@@ -17,6 +17,7 @@ import 'package:nc_photos/pref.dart';
 import 'package:nc_photos/snack_bar_manager.dart';
 import 'package:nc_photos/theme.dart';
 import 'package:nc_photos/widget/fancy_option_picker.dart';
+import 'package:nc_photos/widget/gps_map.dart';
 import 'package:nc_photos/widget/home.dart';
 import 'package:nc_photos/widget/root_picker.dart';
 import 'package:nc_photos/widget/share_folder_picker.dart';
@@ -105,17 +106,16 @@ class _SettingsState extends State<Settings> {
                 label: L10n.global().settingsAccountTitle,
                 builder: () => AccountSettingsWidget(account: widget.account),
               ),
-              if (platform_k.isMobile)
-                _buildSubSettings(
-                  context,
-                  leading: Icon(
-                    Icons.view_carousel_outlined,
-                    color: AppTheme.getUnfocusedIconColor(context),
-                  ),
-                  label: L10n.global().settingsViewerTitle,
-                  description: L10n.global().settingsViewerDescription,
-                  builder: () => _ViewerSettings(),
+              _buildSubSettings(
+                context,
+                leading: Icon(
+                  Icons.view_carousel_outlined,
+                  color: AppTheme.getUnfocusedIconColor(context),
                 ),
+                label: L10n.global().settingsViewerTitle,
+                description: L10n.global().settingsViewerDescription,
+                builder: () => _ViewerSettings(),
+              ),
               _buildSubSettings(
                 context,
                 leading: Icon(
@@ -715,6 +715,7 @@ class _ViewerSettingsState extends State<_ViewerSettings> {
     super.initState();
     _screenBrightness = Pref().getViewerScreenBrightnessOr(-1);
     _isForceRotation = Pref().isViewerForceRotationOr(false);
+    _gpsMapProvider = GpsMapProvider.values[Pref().getGpsMapProviderOr(0)];
   }
 
   @override
@@ -738,19 +739,27 @@ class _ViewerSettingsState extends State<_ViewerSettings> {
         SliverList(
           delegate: SliverChildListDelegate(
             [
-              SwitchListTile(
-                title: Text(L10n.global().settingsScreenBrightnessTitle),
-                subtitle:
-                    Text(L10n.global().settingsScreenBrightnessDescription),
-                value: _screenBrightness >= 0,
-                onChanged: (value) =>
-                    _onScreenBrightnessChanged(context, value),
-              ),
-              SwitchListTile(
-                title: Text(L10n.global().settingsForceRotationTitle),
-                subtitle: Text(L10n.global().settingsForceRotationDescription),
-                value: _isForceRotation,
-                onChanged: (value) => _onForceRotationChanged(value),
+              if (platform_k.isMobile)
+                SwitchListTile(
+                  title: Text(L10n.global().settingsScreenBrightnessTitle),
+                  subtitle:
+                      Text(L10n.global().settingsScreenBrightnessDescription),
+                  value: _screenBrightness >= 0,
+                  onChanged: (value) =>
+                      _onScreenBrightnessChanged(context, value),
+                ),
+              if (platform_k.isMobile)
+                SwitchListTile(
+                  title: Text(L10n.global().settingsForceRotationTitle),
+                  subtitle:
+                      Text(L10n.global().settingsForceRotationDescription),
+                  value: _isForceRotation,
+                  onChanged: (value) => _onForceRotationChanged(value),
+                ),
+              ListTile(
+                title: Text(L10n.global().settingsMapProviderTitle),
+                subtitle: Text(_gpsMapProvider.toUserString()),
+                onTap: () => _onMapProviderTap(context),
               ),
             ],
           ),
@@ -789,7 +798,8 @@ class _ViewerSettingsState extends State<_ViewerSettings> {
                           onChangeEnd: (value) async {
                             brightness = value;
                             try {
-                              await ScreenBrightness().setScreenBrightness(value);
+                              await ScreenBrightness()
+                                  .setScreenBrightness(value);
                             } catch (e, stackTrace) {
                               _log.severe("Failed while setScreenBrightness", e,
                                   stackTrace);
@@ -830,6 +840,44 @@ class _ViewerSettingsState extends State<_ViewerSettings> {
 
   void _onForceRotationChanged(bool value) => _setForceRotation(value);
 
+  Future<void> _onMapProviderTap(BuildContext context) async {
+    final oldValue = _gpsMapProvider;
+    final newValue = await showDialog<GpsMapProvider>(
+      context: context,
+      builder: (context) => FancyOptionPicker(
+        items: GpsMapProvider.values
+            .map((provider) => FancyOptionPickerItem(
+                  label: provider.toUserString(),
+                  isSelected: provider == oldValue,
+                  onSelect: () {
+                    _log.info(
+                        "[_onMapProviderTap] Set map provider: ${provider.toUserString()}");
+                    Navigator.of(context).pop(provider);
+                  },
+                ))
+            .toList(),
+      ),
+    );
+    if (newValue == null || newValue == oldValue) {
+      return;
+    }
+    setState(() {
+      _gpsMapProvider = newValue;
+    });
+    try {
+      await Pref().setGpsMapProvider(newValue.index);
+    } catch (e, stackTrace) {
+      _log.severe("[_onMapProviderTap] Failed writing pref", e, stackTrace);
+      SnackBarManager().showSnackBar(SnackBar(
+        content: Text(L10n.global().writePreferenceFailureNotification),
+        duration: k.snackBarDurationNormal,
+      ));
+      setState(() {
+        _gpsMapProvider = oldValue;
+      });
+    }
+  }
+
   Future<void> _setScreenBrightness(int value) async {
     final oldValue = _screenBrightness;
     setState(() {
@@ -866,6 +914,7 @@ class _ViewerSettingsState extends State<_ViewerSettings> {
 
   late int _screenBrightness;
   late bool _isForceRotation;
+  late GpsMapProvider _gpsMapProvider;
 
   static final _log = Logger("widget.settings._ViewerSettingsState");
 }
diff --git a/lib/widget/viewer_detail_pane.dart b/lib/widget/viewer_detail_pane.dart
index 1b2681cf..2c71d859 100644
--- a/lib/widget/viewer_detail_pane.dart
+++ b/lib/widget/viewer_detail_pane.dart
@@ -23,8 +23,6 @@ import 'package:nc_photos/entity/share/data_source.dart';
 import 'package:nc_photos/exception_util.dart' as exception_util;
 import 'package:nc_photos/iterable_extension.dart';
 import 'package:nc_photos/k.dart' as k;
-import 'package:nc_photos/mobile/platform.dart'
-    if (dart.library.html) 'package:nc_photos/web/platform.dart' as platform;
 import 'package:nc_photos/notified_action.dart';
 import 'package:nc_photos/platform/features.dart' as features;
 import 'package:nc_photos/platform/k.dart' as platform_k;
@@ -36,6 +34,7 @@ import 'package:nc_photos/use_case/remove_from_album.dart';
 import 'package:nc_photos/use_case/update_album.dart';
 import 'package:nc_photos/use_case/update_property.dart';
 import 'package:nc_photos/widget/album_picker_dialog.dart';
+import 'package:nc_photos/widget/gps_map.dart';
 import 'package:nc_photos/widget/photo_date_time_edit_dialog.dart';
 import 'package:path/path.dart';
 import 'package:tuple/tuple.dart';
@@ -248,7 +247,7 @@ class _ViewerDetailPaneState extends State<ViewerDetailPane> {
           if (features.isSupportMapView && _gps != null)
             SizedBox(
               height: 256,
-              child: platform.GpsMap(
+              child: GpsMap(
                 center: _gps!,
                 zoom: 16,
                 onTap: _onMapTap,
diff --git a/pubspec.lock b/pubspec.lock
index ff36f0e5..b219cd09 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -309,6 +309,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_map:
+    dependency: "direct main"
+    description:
+      name: flutter_map
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.14.0"
   flutter_plugin_android_lifecycle:
     dependency: transitive
     description:
@@ -449,6 +456,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "4.0.1"
+  latlong2:
+    dependency: transitive
+    description:
+      name: latlong2
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.8.1"
   lints:
     dependency: transitive
     description:
@@ -456,6 +470,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
+  lists:
+    dependency: transitive
+    description:
+      name: lists
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   logging:
     dependency: "direct main"
     description:
@@ -477,6 +498,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.0"
+  mgrs_dart:
+    dependency: transitive
+    description:
+      name: mgrs_dart
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
   mime:
     dependency: transitive
     description:
@@ -617,6 +645,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.5.0"
+  positioned_tap_detector_2:
+    dependency: transitive
+    description:
+      name: positioned_tap_detector_2
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.4"
   process:
     dependency: transitive
     description:
@@ -624,6 +659,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "4.2.4"
+  proj4dart:
+    dependency: transitive
+    description:
+      name: proj4dart
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
   provider:
     dependency: transitive
     description:
@@ -846,6 +888,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.4.0"
+  transparent_image:
+    dependency: transitive
+    description:
+      name: transparent_image
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
   tuple:
     dependency: "direct main"
     description:
@@ -860,6 +909,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.0"
+  unicode:
+    dependency: transitive
+    description:
+      name: unicode
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.1"
   url_launcher:
     dependency: "direct main"
     description:
@@ -1013,6 +1069,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.2.10"
+  wkt_parser:
+    dependency: transitive
+    description:
+      name: wkt_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
   woozy_search:
     dependency: "direct main"
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 148e1ec3..1c3cb1f7 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -43,6 +43,7 @@ dependencies:
       url: https://gitlab.com/nkming2/exifdart.git
       ref: 1.1.0
   flutter_bloc: ^7.0.0
+  flutter_map: ^0.14.0
   flutter_staggered_grid_view:
     git:
       url: https://gitlab.com/nkming2/flutter_staggered_grid_view