diff --git a/package-lock.json b/package-lock.json
index 9dcc7d1..6a19f08 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32,8 +32,8 @@
         "@types/react-router": "^5.1.11",
         "@types/react-router-dom": "^5.1.7",
         "cordova-plugin-geolocation": "^4.1.0",
-        "gpx-parser-builder": "^1.0.2",
         "ionicons": "^6.0.3",
+        "isomorphic-xml2js": "^0.1.3",
         "lodash": "^4.17.21",
         "react": "^18.2.0",
         "react-dom": "^18.2.0",
@@ -9096,14 +9096,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/gpx-parser-builder": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/gpx-parser-builder/-/gpx-parser-builder-1.0.2.tgz",
-      "integrity": "sha512-zCTGKANSytYLIicVYUUFTYhz3mbDEtIemWZvC3Vb0j8DhwPMbDSCIl9blMClxSLrr7gGbwLAk1nhj3Z41oC5sw==",
-      "dependencies": {
-        "isomorphic-xml2js": "~0.1"
-      }
-    },
     "node_modules/graceful-fs": {
       "version": "4.2.10",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.10.tgz",
@@ -24639,14 +24631,6 @@
         "slash": "^3.0.0"
       }
     },
-    "gpx-parser-builder": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/gpx-parser-builder/-/gpx-parser-builder-1.0.2.tgz",
-      "integrity": "sha512-zCTGKANSytYLIicVYUUFTYhz3mbDEtIemWZvC3Vb0j8DhwPMbDSCIl9blMClxSLrr7gGbwLAk1nhj3Z41oC5sw==",
-      "requires": {
-        "isomorphic-xml2js": "~0.1"
-      }
-    },
     "graceful-fs": {
       "version": "4.2.10",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.10.tgz",
diff --git a/package.json b/package.json
index dee2c0a..445ec00 100644
--- a/package.json
+++ b/package.json
@@ -27,8 +27,8 @@
     "@types/react-router": "^5.1.11",
     "@types/react-router-dom": "^5.1.7",
     "cordova-plugin-geolocation": "^4.1.0",
-    "gpx-parser-builder": "^1.0.2",
     "ionicons": "^6.0.3",
+    "isomorphic-xml2js": "^0.1.3",
     "lodash": "^4.17.21",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
diff --git a/src/components/map/gpx-import.tsx b/src/components/map/gpx-import.tsx
index ea7792a..2b51513 100644
--- a/src/components/map/gpx-import.tsx
+++ b/src/components/map/gpx-import.tsx
@@ -1,13 +1,13 @@
 import React from 'react';
 
-import { Geolocation } from '@awesome-cordova-plugins/geolocation';
 import { useDispatch } from 'react-redux';
 
-import { mapActions } from '../../store/map';
+import GPX from '../../lib/gpx-parser-builder';
 
 import '../../theme/get-location.css';
 import { IonIcon, IonItem } from '@ionic/react';
 import { downloadSharp } from 'ionicons/icons';
+import { tracksActions } from '../../store/tracks';
 
 const GpxImport: React.FC<{}> = () => {
   const dispatch = useDispatch();
@@ -23,6 +23,8 @@ const GpxImport: React.FC<{}> = () => {
       () => {
         // this will then display a text file
         console.log(fileReader.result);
+        const track = GPX.parse(fileReader.result);
+        dispatch(tracksActions.push(JSON.parse(JSON.stringify(track))));
       },
       false
     );
diff --git a/src/lib/gpx-parser-builder/LICENSE b/src/lib/gpx-parser-builder/LICENSE
new file mode 100644
index 0000000..f975d73
--- /dev/null
+++ b/src/lib/gpx-parser-builder/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Zheng-Xiang Ke
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/src/lib/gpx-parser-builder/README.md b/src/lib/gpx-parser-builder/README.md
new file mode 100644
index 0000000..88d2602
--- /dev/null
+++ b/src/lib/gpx-parser-builder/README.md
@@ -0,0 +1,91 @@
+# gpx-parser-builder
+A simple gpx parser and builder between GPX string and JavaScript object. It is dependent on [isomorphic-xml2js](https://github.com/RikkiGibson/isomorphic-xml2js).
+
+[![npm](https://img.shields.io/npm/dt/gpx-parser-builder.svg)](https://www.npmjs.com/package/gpx-parser-builder)
+[![GitHub stars](https://img.shields.io/github/stars/kf99916/gpx-parser-builder.svg)](https://github.com/kf99916/gpx-parser-builder/stargazers)
+[![GitHub forks](https://img.shields.io/github/forks/kf99916/gpx-parser-builder.svg)](https://github.com/kf99916/gpx-parser-builder/network)
+[![npm](https://img.shields.io/npm/v/gpx-parser-builder.svg)](https://www.npmjs.com/package/gpx-parser-builder)
+[![GitHub license](https://img.shields.io/github/license/kf99916/gpx-parser-builder.svg)](https://github.com/kf99916/gpx-parser-builder/blob/master/LICENSE)
+
+## Requirements
+
+gpx-parser-builder is written with ECMAScript 6. You can leverage [Babel](https://babeljs.io/) and [Webpack](https://webpack.js.org/) to make all browsers available.
+
+## Installation
+
+```bash
+npm install gpx-parser-builder --save
+```
+
+## Version
+
+v1.0.0+ is a breaking change for v0.2.2-. v1.0.0+ fully supports gpx files including waypoints, routes, and tracks. Every gpx type is 1-1 corresponding to a JavaScript class.
+
+## Usage
+
+```javascript
+import GPX from 'gpx-parser-builder';
+
+// Parse gpx
+const gpx = GPX.parse('GPX_STRING');
+
+window.console.dir(gpx.metadata);
+window.console.dir(gpx.wpt);
+window.console.dir(gpx.trk);
+
+// Build gpx
+window.console.log(gpx.toString());
+```
+
+Get more details about usage with the unit tests.
+
+### GPX
+
+The GPX JavaScript object.
+
+`constructor(object)` 
+
+```javascript
+const gpx = new Gpx({$:{...}, metadat: {...}, wpt:[{...},{...}]}, trk: {...}, rte: {...})
+```
+
+#### Member Variables
+
+`$` the attributes for the gpx element. Default value:
+```javascript
+{
+    'version': '1.1',
+    'creator': 'gpx-parser-builder',
+    'xmlns': 'http://www.topografix.com/GPX/1/1',
+    'xmlns:xsi': 'http://www.w3.org/2001/XMLSchema-instance',
+    'xsi:schemaLocation': 'http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd'
+}
+```
+
+`metadata` the metadata for the gpx.
+
+`wpt` array of waypoints. It is corresponded to `<wpt>`. The type of all elements in `wpt` is `Waypoint`;
+
+`rte` array of routes. It is corresponded to `<rte>`. The type of all elements in `rte` is `Route`;
+
+`trk` array of tracks. It is corresponded to `<trk>`. The type of all elements in `trk` is `Track`;
+
+#### Static Methods
+
+`parse(gpxString)` parse gpx string to Gpx object. return `null` if parsing failed.
+
+#### Member Methods
+
+`toString(options)` GPX object to gpx string. The options is for [isomorphic-xml2js](https://github.com/RikkiGibson/isomorphic-xml2js).
+
+## Save as GPX file in the frontend
+
+You can leverage [StreamSaver.js](https://github.com/jimmywarting/StreamSaver.js) or [FileSaver.js](https://github.com/eligrey/FileSaver.js) to save as GPX file. ⚠️Not all borwsers support the above file techniques. ⚠️️️
+
+## Author
+
+Zheng-Xiang Ke, kf99916@gmail.com
+
+## License
+
+gpx-parser-builder is available under the MIT license. See the LICENSE file for more info.
diff --git a/src/lib/gpx-parser-builder/package.json b/src/lib/gpx-parser-builder/package.json
new file mode 100644
index 0000000..19b2cdc
--- /dev/null
+++ b/src/lib/gpx-parser-builder/package.json
@@ -0,0 +1,36 @@
+{
+  "name": "gpx-parser-builder",
+  "version": "1.0.2",
+  "description": "A simple gpx parser and builder between GPX string and JavaScript object",
+  "main": "./src/gpx.js",
+  "scripts": {
+    "test": "mocha --require @babel/register test/**/*.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/kf99916/gpx-parser-builder.git"
+  },
+  "keywords": [
+    "gpx",
+    "parser",
+    "builder"
+  ],
+  "author": "Zheng-Xiang Ke",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/kf99916/gpx-parser-builder/issues"
+  },
+  "homepage": "https://github.com/kf99916/gpx-parser-builder",
+  "files": [
+    "src"
+  ],
+  "devDependencies": {
+    "@babel/core": "~7.7",
+    "@babel/preset-env": "~7.7",
+    "@babel/register": "~7.7",
+    "mocha": "~6.2"
+  },
+  "dependencies": {
+    "isomorphic-xml2js": "~0.1"
+  }
+}
diff --git a/src/lib/gpx-parser-builder/src/bounds.js b/src/lib/gpx-parser-builder/src/bounds.js
new file mode 100644
index 0000000..08f45b4
--- /dev/null
+++ b/src/lib/gpx-parser-builder/src/bounds.js
@@ -0,0 +1,8 @@
+export default class Bounds {
+  constructor(object) {
+    this.minlat = object.minlat;
+    this.minlon = object.minlon;
+    this.maxlat = object.maxlat;
+    this.maxlon = object.maxlon;
+  }
+}
diff --git a/src/lib/gpx-parser-builder/src/copyright.js b/src/lib/gpx-parser-builder/src/copyright.js
new file mode 100644
index 0000000..5a9f77e
--- /dev/null
+++ b/src/lib/gpx-parser-builder/src/copyright.js
@@ -0,0 +1,7 @@
+export default class Copyright {
+  constructor(object) {
+    this.author = object.author;
+    this.year = object.year;
+    this.license = object.license;
+  }
+}
\ No newline at end of file
diff --git a/src/lib/gpx-parser-builder/src/gpx-parser-builder.d.ts b/src/lib/gpx-parser-builder/src/gpx-parser-builder.d.ts
new file mode 100644
index 0000000..37665f0
--- /dev/null
+++ b/src/lib/gpx-parser-builder/src/gpx-parser-builder.d.ts
@@ -0,0 +1,13 @@
+declare module 'gpx-parser-builder' {
+  class GPX {
+    static parse(gpxString: any): any;
+    constructor(object: any);
+    $: any;
+    extensions: any;
+    metadata: any;
+    wpt: any;
+    rte: any;
+    trk: any;
+    toString(options: any): string;
+  }
+}
diff --git a/src/lib/gpx-parser-builder/src/gpx.js b/src/lib/gpx-parser-builder/src/gpx.js
new file mode 100644
index 0000000..07be870
--- /dev/null
+++ b/src/lib/gpx-parser-builder/src/gpx.js
@@ -0,0 +1,79 @@
+import * as xml2js from 'isomorphic-xml2js';
+import Metadata from './metadata';
+import Waypoint from './waypoint';
+import Route from './route';
+import Track from './track';
+import {removeEmpty, allDatesToISOString} from './utils';
+
+const defaultAttributes = {
+  version: '1.1',
+  creator: 'gpx-parser-builder',
+  xmlns: 'http://www.topografix.com/GPX/1/1',
+  'xmlns:xsi': 'http://www.w3.org/2001/XMLSchema-instance',
+  'xsi:schemaLocation':
+      'http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd'
+}
+
+export default class GPX {
+  constructor(object) {
+    this.$ = Object.assign({}, defaultAttributes, object.$ || object.attributes || {});
+    this.extensions = object.extensions;
+
+    if (object.metadata) {
+      this.metadata = new Metadata(object.metadata);
+    }
+    if (object.wpt) {
+      if (!Array.isArray(object.wpt)) {
+        object.wpt = [object.wpt];
+      }
+      this.wpt = object.wpt.map(wpt => new Waypoint(wpt));
+    }
+    if (object.rte) {
+      if (!Array.isArray(object.rte)) {
+        object.rte = [object.rte];
+      }
+      this.rte = object.rte.map(rte => new Route(rte));
+    }
+    if (object.trk) {
+      if (!Array.isArray(object.trk)) {
+        object.trk = [object.trk];
+      }
+      this.trk = object.trk.map(trk => new Track(trk));
+    }
+
+    removeEmpty(this);
+  }
+  
+  static parse(gpxString) {
+    let gpx;
+    xml2js.parseString(gpxString, {
+      explicitArray: false
+    }, (err, xml) => {
+      if (err) {
+        return;
+      }
+      if (!xml.gpx) {
+        return;
+      }
+
+      gpx = new GPX({
+        attributes: xml.gpx.$,
+        metadata: xml.gpx.metadata,
+        wpt: xml.gpx.wpt,
+        rte: xml.gpx.rte,
+        trk: xml.gpx.trk
+      });
+    });
+
+    return gpx;
+  }
+
+  toString(options) {
+    options = options || {};
+    options.rootName = 'gpx';
+
+    const builder = new xml2js.Builder(options), gpx = new GPX(this);
+    allDatesToISOString(gpx);
+    return builder.buildObject(gpx);
+  }
+}
\ No newline at end of file
diff --git a/src/lib/gpx-parser-builder/src/link.js b/src/lib/gpx-parser-builder/src/link.js
new file mode 100644
index 0000000..f7e05af
--- /dev/null
+++ b/src/lib/gpx-parser-builder/src/link.js
@@ -0,0 +1,8 @@
+export default class Link {
+  constructor(object) {
+    this.$ = {};
+    this.$.href = object.$.href || object.href;
+    this.text = object.text;
+    this.type = object.type;
+  }
+}
\ No newline at end of file
diff --git a/src/lib/gpx-parser-builder/src/metadata.js b/src/lib/gpx-parser-builder/src/metadata.js
new file mode 100644
index 0000000..293bbec
--- /dev/null
+++ b/src/lib/gpx-parser-builder/src/metadata.js
@@ -0,0 +1,29 @@
+import Copyright from './copyright';
+import Link from './link';
+import Person from './person';
+import Bounds from './bounds';
+
+export default class Metadata {
+  constructor(object) {
+    this.name = object.name;
+    this.desc = object.desc;
+    this.time = object.time ? new Date(object.time) : new Date();
+    this.keywords = object.keywords;
+    this.extensions = object.extensions;
+    if (object.author) {
+      this.author = new Person(object.author);
+    }
+    if (object.link) {
+      if (!Array.isArray(object.link)) {
+        object.link = [object.link];
+      }
+      this.link = object.link.map(l => new Link(l));
+    }
+    if (object.bounds) {
+      this.bounds = new Bounds(object.bounds);
+    }
+    if (object.copyright) {
+      this.copyright = new Copyright(object.copyright);
+    }
+  } 
+}
\ No newline at end of file
diff --git a/src/lib/gpx-parser-builder/src/person.js b/src/lib/gpx-parser-builder/src/person.js
new file mode 100644
index 0000000..6382578
--- /dev/null
+++ b/src/lib/gpx-parser-builder/src/person.js
@@ -0,0 +1,9 @@
+import Link from './link';
+
+export default class Person {
+  constructor(object) {
+    this.name = object.name;
+    this.email = object.emil;
+    this.link = new Link(object.link);
+  }
+}
\ No newline at end of file
diff --git a/src/lib/gpx-parser-builder/src/route.js b/src/lib/gpx-parser-builder/src/route.js
new file mode 100644
index 0000000..842e9f8
--- /dev/null
+++ b/src/lib/gpx-parser-builder/src/route.js
@@ -0,0 +1,27 @@
+import Waypoint from './waypoint';
+import Link from './link';
+
+export default class Route {
+  constructor(object) {
+    this.name = object.name;
+    this.cmt = object.cmt;
+    this.desc = object.desc;
+    this.src = object.src;
+    this.number = object.number;
+    this.type = object.type;
+    this.extensions = object.extensions;
+    if (object.link) {
+      if (!Array.isArray(object.link)) {
+        this.link = [object.link];
+      }
+      this.link = object.link.map(l => new Link(l));
+    }
+
+    if (object.rtept) {
+      if (!Array.isArray(object.rtept)) {
+        this.rtept = [object.rtept];
+      }
+      this.rtept = object.rtept.map(pt => new Waypoint(pt));
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/lib/gpx-parser-builder/src/track-segment.js b/src/lib/gpx-parser-builder/src/track-segment.js
new file mode 100644
index 0000000..5fca2d5
--- /dev/null
+++ b/src/lib/gpx-parser-builder/src/track-segment.js
@@ -0,0 +1,13 @@
+import Waypoint from './waypoint';
+
+export default class TrackSegment {
+  constructor(object) {
+    if (object.trkpt) {
+      if (!Array.isArray(object.trkpt)) {
+        object.trkpt = [object.trkpt];
+      }
+      this.trkpt = object.trkpt.map(pt => new Waypoint(pt));
+    }
+    this.extensions = object.extensions;
+  }
+}
\ No newline at end of file
diff --git a/src/lib/gpx-parser-builder/src/track.js b/src/lib/gpx-parser-builder/src/track.js
new file mode 100644
index 0000000..4e330aa
--- /dev/null
+++ b/src/lib/gpx-parser-builder/src/track.js
@@ -0,0 +1,26 @@
+import TrackSegment from './track-segment';
+import Link from './link';
+
+export default class Track {
+  constructor(object) {
+    this.name = object.name;
+    this.cmt = object.cmt;
+    this.desc = object.desc;
+    this.src = object.src;
+    this.number = object.number;
+    this.type = object.type;
+    this.extensions = object.extensions;
+    if (object.link) {
+      if (!Array.isArray(object.link)) {
+        object.link = [object.link];
+      }
+      this.link = object.link.map(l => new Link(l));
+    }
+    if (object.trkseg) {
+      if (!Array.isArray(object.trkseg)) {
+        object.trkseg = [object.trkseg];
+      }
+      this.trkseg = object.trkseg.map(seg => new TrackSegment(seg));
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/lib/gpx-parser-builder/src/utils.js b/src/lib/gpx-parser-builder/src/utils.js
new file mode 100644
index 0000000..d769918
--- /dev/null
+++ b/src/lib/gpx-parser-builder/src/utils.js
@@ -0,0 +1,23 @@
+function removeEmpty(obj) {
+  Object.entries(obj).forEach(([key, val]) => {
+    if (val && val instanceof Object) {
+      removeEmpty(val);
+    } else if (val == null) {
+      delete obj[key];
+    }
+  });
+}
+
+function allDatesToISOString(obj) {
+  Object.entries(obj).forEach(([key, val]) => {
+    if (val) {
+      if (val instanceof Date) {
+        obj[key] = val.toISOString().split('.')[0] + 'Z';
+      } else if (val instanceof Object) {
+        allDatesToISOString(val);
+      }
+    }
+  });
+}
+
+export { removeEmpty, allDatesToISOString };
diff --git a/src/lib/gpx-parser-builder/src/waypoint.js b/src/lib/gpx-parser-builder/src/waypoint.js
new file mode 100644
index 0000000..2910ff8
--- /dev/null
+++ b/src/lib/gpx-parser-builder/src/waypoint.js
@@ -0,0 +1,32 @@
+import Link from './link';
+
+export default class Waypoint {
+  constructor(object) {
+    this.$ = {};
+    this.$.lat = object.$.lat === 0 || object.lat === 0 ? 0 : object.$.lat || object.lat || -1;
+    this.$.lon = object.$.lon === 0 || object.lon === 0 ? 0 : object.$.lon || object.lon || -1;
+    this.ele = object.ele;
+    this.time = object.time ? new Date(object.time) : new Date();
+    this.magvar = object.magvar;
+    this.geoidheight = object.geoidheight;
+    this.name = object.name;
+    this.cmt = object.cmt;
+    this.desc = object.desc;
+    this.src = object.src;
+    this.sym = object.sym;
+    this.type = object.type;
+    this.sat = object.sat;
+    this.hdop = object.hdop;
+    this.vdop = object.vdop;
+    this.pdop = object.pdop;
+    this.ageofdgpsdata = object.ageofdgpsdata;
+    this.dgpsid = object.dgpsid;
+    this.extensions = object.extensions;
+    if (object.link) {
+      if (!Array.isArray(object.link)) {
+        object.link = [object.link];
+      }
+      this.link = object.link.map(l => new Link(l));
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/store/index.ts b/src/store/index.ts
index 5e67564..1ec1b0e 100644
--- a/src/store/index.ts
+++ b/src/store/index.ts
@@ -1,9 +1,10 @@
 import { configureStore } from '@reduxjs/toolkit';
 
 import mapReducer from './map';
+import tracksReducer from './tracks';
 
 const store = configureStore({
-  reducer: { map: mapReducer },
+  reducer: { map: mapReducer, tracks: tracksReducer },
 });
 
 export default store;
diff --git a/src/store/tracks.ts b/src/store/tracks.ts
new file mode 100644
index 0000000..128627a
--- /dev/null
+++ b/src/store/tracks.ts
@@ -0,0 +1,29 @@
+import { createSlice } from '@reduxjs/toolkit';
+
+interface TracksState {
+  index: number;
+  tracks: { [index: string]: any };
+}
+
+const initialTracks: TracksState = {
+  index: 0,
+  tracks: {},
+};
+
+const tracksSlice = createSlice({
+  name: 'tracks',
+  initialState: initialTracks,
+  reducers: {
+    add: (state, action) => {
+      state.tracks[action.payload.id] = action.payload.track;
+    },
+    push: (state, action) => {
+      state.tracks['$' + state.index] = action.payload;
+      state.index++;
+    },
+  },
+});
+
+export const tracksActions = tracksSlice.actions;
+
+export default tracksSlice.reducer;