gpx-py is a python GPX parser. GPX (GPS eXchange Format) is an XML based file format for GPS tracks.

GPS log file viewer and analyzer with support for GPX, TCX, KML, FIT, IGC, NMEA, SLF, SML, LOC, GPI, GeoJSON and OziExplorer files.

GPS Tracker app for iOS + WatchOS. Log your tracks without limits and share them; Open source GPX tracker app written in Swift

Make your own running page

Generate personal heatmap from GPX/TCX/FIT data

Create a visually appealing poster from your GPX tracks

convert KML, TCX, and GPX to GeoJSON, without the fuss

A GPS logger for Android mobile devices

Digital Elevation model library in C#. 3D terrain models, line/point Elevations, intervisibility reports

JPX - Java GPX library

Free your data from Polar FlowSync

Viking is a free/open source program to manage GPS data (including GPX and KML files). You can import and plot tracks, routes and waypoints, show OpenStreetMaps (OSM), Bing Aerial and other maps, generate Mapnik maps, geotag images, make new tracks, routes and waypoints, see real-time GPS position, etc. It is written mostly in C with the GTK+ 2 toolkit and some C++.

A library for parsing and creation of GPX location files. Purely Swift.

A library to parse XML Gpx files, built for Android.

Simple library for reading and creating GPX files written in PHP.

An OctoPrint plug-in to use GPX as the protocol layer underneath rather than replacing g-code to talk to s3g/x3g machines, for example, a FlashForge.

Setup Geofences and get notifications when the device enters or leaves the geofence.

Free Tracks Optimizer Online Service

Leaflet plugin that allows to add elevation profiles using d3js

Perl code for reading and conversion of Garmin FIT binary files

Parse tcx, gpx and fit file

Show the differences between GPX files

utility to migrate Runkeeper data (GPX and CSV) to Strava

Track Animation is a Python 2 and 3 library that provides an easy and user-adjustable way of creating visualizations from GPS data.

convert geojson to gpx

Sauce for Strava™

Parse the gpmd stream for GOPRO moov track (MP4) and extract the GPS info into a GPX (and kml) file.

GPX library for golang