GPX to GeoJSON Converter — Convert GPS Tracks Free Online

From GPS Device to Web Map in One Step

GPX is the universal language of GPS devices and outdoor apps. Whether you record a morning run on a Garmin watch, log a cycling route on a Wahoo computer, track a hiking trail on OsmAnd, or export an activity from Strava — the file you get is a GPX. And GPX is great for what it does: it captures your path, timestamps, elevation, and waypoints in a portable XML format that any GPS app can read.

But the moment you want to do something creative with that data — embed a track in a website, load it into a data visualisation, process it with Python or R, or push it into a database — you run into GPX''s limitation: it is not a web format. GeoJSON is. Converting your GPX to GeoJSON takes about three seconds with this tool, and the result is a file that every mapping library on the planet accepts natively.

What Is GeoJSON and Why Is It Better for Web Mapping?

GeoJSON is an open standard (RFC 7946) for encoding geographic data structures using JSON. It represents the same types of data as GPX — points, lines, and polygons with associated properties — but in JSON format rather than XML. This makes it directly parseable by JavaScript without any special library, natively understood by web browsers, and compatible with every tool in the modern geodata stack.

A GeoJSON FeatureCollection looks like this at its core:

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "geometry": {
        "type": "LineString",
        "coordinates": [[8.0394, 46.6244, 1035], [8.0741, 46.6262, 1082], ...]
      },
      "properties": {
        "name": "Morning Hike",
        "coordTimes": ["2024-07-15T06:30:00Z", "2024-07-15T06:38:00Z", ...]
      }
    }
  ]
}

The third number in each coordinate is the elevation in metres, preserved directly from your GPX file. The coordTimes array preserves the timestamp of every recorded point — so your GeoJSON retains the full temporal record of your GPS track, not just the geometry.

What Data Is Preserved in the Conversion?

This converter uses the @tmcw/togeojson library, which provides one of the most complete GPX-to-GeoJSON conversions available. Here is what comes across:

• Track geometry — all track segments, with coordinates (longitude, latitude, elevation). Multi-segment tracks become MultiLineString features.
• Route geometry — all route points, converted to LineString features.
• Waypoints — all waypoint elements, converted to Point features with name, description, elevation, and symbol.
• Timestamps — per-point timestamps stored as coordTimes arrays in the feature properties.
• Garmin extensions — heart rate, cadence, speed, power, temperature from TrackPointExtension, stored as coordinateProperties.
• Metadata — track name, comment, description, type, and source attributes, preserved as feature properties.

Step-by-Step Guide

Step 1

Converter Loads Ready to Use

The GPX to GeoJSON converter opens with an empty map and the sidebar showing the upload zone, GeoJSON preview panel, colour picker, basemap controls, and action buttons. No account or installation is needed.

Step 2

Drop GPX File onto the Upload Zone

Drag your .gpx file from anywhere on your computer and drop it onto the dashed zone, or click the zone to open a file picker. GPX 1.0 and GPX 1.1 are both supported. Files from Garmin, Wahoo, Strava, Komoot, OsmAnd, and all major GPS apps work.

Step 3

Track Appears on Map, Stats Shown

Within moments your GPX features appear as an overlay on the map — tracks and routes as lines, waypoints as circle markers. The sidebar shows the conversion stats: total features, tracks/routes, waypoints, and total coordinate count.

Step 4

GeoJSON Preview with Copy Button

The GeoJSON Preview section shows the first lines of the converted JSON output. You can copy the complete GeoJSON to your clipboard with a single click — useful for pasting directly into Mapbox, Leaflet code, a text editor, or geojson.io for further editing.

Step 5

Waypoints Show as Clickable Markers

Waypoints from your GPX file appear as circle markers on the map. Click any waypoint to see a popup showing its name, latitude/longitude, and elevation. This lets you verify that all your named points converted correctly before downloading.

Step 6

Topo Basemap for Terrain Context

Switch to the Topo basemap to see elevation contours beneath your GPX track. This is particularly useful for hiking, cycling, or ski runs where understanding terrain shape confirms the conversion accuracy for elevation-rich GPX data.

Step 7

Satellite View to Verify GPS Accuracy

Overlay your converted track on high-resolution satellite imagery to verify that GPS points fall where expected — roads, trails, coastlines, or field boundaries. Helps catch coordinate system issues before using the file in a production mapping project.

Step 8

Change Preview Colour Anytime

Choose a custom colour for the map preview layer using the picker or preset palette. The colour only affects how the features appear on screen — it has no effect on the GeoJSON output, which is a data format, not a styled format.

Step 9

Download the GeoJSON File

Click "Download GeoJSON" to save the converted file to your computer. The file is named after your original GPX filename with a .geojson extension. It is ready to use in QGIS, ArcGIS, Mapbox, Leaflet, GitHub, deck.gl, or any GeoJSON-compatible tool.

Step 10

Zoom to Features at Any Time

After panning around to explore your track on different basemaps, click "Zoom to Features" to snap the view back to the full extent of your GPX data. You can upload a new file at any time — the previous layer is automatically replaced.

Common Use Cases

Frequently Asked Questions

Related Tools

Map tiles by CARTO, OpenTopoMap, and Esri. Base map data © OpenStreetMap contributors. GPX parsing by @tmcw/togeojson. Map rendering by Leaflet. All file processing is local — no data is transmitted to any server.