An open-source, self-hosted GPS tool

See all your GPS tracks on one map.

Import thousands of GPX and FIT tracks, including activities from Garmin, into a private, self-hosted map. Filter your history, compare years, inspect statistics, and plan your next route.

Open live demo View feature tours

Hosted demo instance with a sample archive.

What you can do with MTL Explorer.

Load up thousands of tracks on a single map. Switch the same archive between year views, activity types, photos, custom filters, and planning views.

Explore

Load your track history on one map.

Import thousands of GPS tracks. View the same private archive as a dense map, a year-by-year history, or an activity breakdown.

Massive track displayRender tens of thousands of tracks simultaneously without bogging down your browser.
Quick route statsClick any track to check the date, distance, time, and moving speed.
Activity viewRecolor the same map by activity type to separate cycling, motorized, and on-foot tracks.
Track detail graphsOpen a route to inspect speed, distance, energy, and power graphs.

Read about the GPS track map

Segments

Check segment times.

Create virtual checkpoints to measure your speed between specific locations on the map.

Draw segment checkpointsDrop markers on any trail. The app finds every past track that crossed them.
Segment resultsCheck detailed graphs to compare your speed across all tracks that hit those checkpoints.
Analyze effortCompare distances and pacing on overlapping route sections.
Race modeVisually replay tracks against each other directly on the map.

Read about segment analysis

Statistics

Dig into the data.

Analyze your distance, moving time, and energy spent. Compare trends by year, quarter, month, or week.

Detailed graphsCheck your speed and elevation profile for any given track.
Trend chartsCompare your historical data over specific time periods.
Period comparisonsCompare focused periods like Q1 across multiple years.
Exploration scoreMeasure how much new territory an activity covered.

Read about track statistics

Plan routes

Plan your next route.

Draw new routes point-by-point. Live stats for total distance and ascent update automatically while you draw.

Live route plannerClick on the map to draft a route. It tracks distance and climbing in real time.
Waymarked trails layerOverlay known hiking and cycling routes from public map data.
GPX exportSave a planned route and export it for another device or application.

Read about route planning

Operate

Filters and control.

Use configurable filters to decide which tracks appear, how they are grouped, and which subset feeds the rest of the app.

SQL-driven filtersWrite filters to isolate the tracks you want. The map updates immediately.
Custom groupingUse filter rules to group tracks for map colors, statistics, and focused archive views.
Year coloringCompare older routes with recent ones on the same map.
Offline supportUse cached map tiles and track data locally when internet access drops.

Read about filters

Mobile

Use the map on your phone.

MTL Explorer runs in a mobile browser. You can check maps, statistics, and your GPS position while away from a desktop.

Responsive statisticsReview statistics and tracks on a narrow screen.
Mobile mapUse the track map while away from a desktop.
Segment analysisCheck past segment times from the mobile interface.
Location trackingShow your current GPS coordinates alongside historical routes.

Read about mobile use

How it works.

Set up the server, import your files, and start exploring.

Import your files

Drop files into a folder or import from Garmin. It supports GPX, FIT, TCX, KML/KMZ, IGC, NMEA, GeoJSON, and GDB.

Automated processing

The app indexes your files, removes duplicates, and spots bad data points in the background.

Map and analyze

Use filters to find what you want. Click tracks to check speed, distance, or mechanical energy spent.

Route planning

Draw point-by-point routes directly on the map. Save them as GPX files for your next trip.

Guides for building your archive.

Review import options, supported files, the private heatmap, and the background of the project.

Open source and self-hosted.

You control the server and the data. No external accounts are required to use the core tools.

Keep it local

All your GPS files and photos stay on your hardware. You do not have to share your history with anyone.

Open source (AGPL) with a commercial license option.
Runs in Docker. The API, database, and map tiles remain local.
Basic offline support. You can view cached tracks if you lose internet.