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The Free 3D Route Planner for Trail Running

Plan routes with custom trail routing, public trace heatmaps, outdoor POIs, roundtrip loops, trail difficulty, snow context, GPX merge/export, 3D videos, and roadbooks. No account, no subscriptions, no paywalls.

No login required 100% free GPX merge/export Heatmap & POIs Roundtrip generator Videos & roadbooks
Start New Route
Powered by OpenStreetMap · Valhalla · MapLibre
TrailSplits 3D satellite view of a mountain trail route with dramatic Alpine topography

Features

Professional route planning, zero paywalls

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GPX Import, Merge & Export

Upload one GPX or select several files to merge them into a single planner route, then export clean GPX 1.1 for Garmin, Coros, Suunto, Apple Watch, or any navigation app.
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Public Trace Heatmap

Turn on anonymized public GPS trace popularity to spot where runners and hikers actually go, especially when map data looks ambiguous.
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Roundtrip Loop Generator

Generate scenic loop candidates from a start point, compare distance and trail quality, then adjust the target distance before exporting.
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Outdoor POIs

Show practical map context such as water, huts, shelters, camp sites, parking, picnic spots, viewpoints, and information points while planning.
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Trail Difficulty & Surface

Inspect surface mix, trail confidence, runnability grade, gradients, and hiking network context so a route is not just a line on a map.
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Snow & Terrain Context

Use current snow overlays, source-date transparency, contours, hillshade, and elevation profiles to sanity-check mountain routes before committing.
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True 3D Topography

Visualize elevation gain and exposure in 3D satellite view before you hit the mountain. Know exactly what you're signing up for.
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Videos & Route Roadbooks

Create browser-generated 3D route videos and printable alpine roadbooks with maps, elevation, route cues, safety notes, and a QR link back to the interactive route.

Route Preparation Stack

From GPX file to group-ready route plan

TrailSplits is a free web-based GPX route planner for mountain runners and hikers. It supports GPX upload and multi-file merge, route reversal, trail-biased Valhalla routing, public trace heatmaps, outdoor POIs, roundtrip loop generation, trail difficulty and surface analysis, snow overlays, 3D terrain flyovers, browser video export, printable route roadbooks, and standard GPX 1.1 export for Garmin, Coros, Suunto, Apple Watch, and navigation apps.

Edit
Import, merge, reverse

Bring in one GPX or merge several files, flip the direction, adjust waypoints, prefer trails, and export a clean new GPX.

Discover
Heatmap, POIs, networks

Layer public trace popularity, water, huts, parking, hiking networks, surface cues, and trail confidence over the route.

Generate
Roundtrip loop candidates

Create scenic loops from a start point and compare candidates by distance, unique trail use, pavement, and quality score.

Share
Videos, roadbooks, GPX

Record a 3D route video, print a roadbook with map and QR code, or download a standard GPX for watches and phones.

Why use TrailSplits?

Major fitness apps have locked basic safety tools behind $60/year paywalls. TrailSplits was built by trail runners to keep route planning free.

FeatureStrava / KomootTrailSplits
GPX export$60/yearFree
3D satellite flyover—✓
Trail-first routingLimitedValhalla (OSM)
Color-coded gradients—✓
GPX import, merge, and reverseVariesFree
Public GPS trace heatmapLimitedPlanner layer
Roundtrip loop generatorPremium or manualFlexible scenic planner
Outdoor POIs and snow contextFragmentedBuilt in
3D video and route roadbookPremium or manualBrowser-generated
Account requiredYesNo
$0
GPX export, forever
0
Account required
100%
Open routing data (OSM)

Trail Guides

Explore long-distance & day-hike trails

Stage-by-stage guides for multi-day trails across Europe, plus satellite-verified day hikes in Switzerland.

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Multi-Day Trails

Long-distance routes with stage guides, elevation profiles, and difficulty ratings.
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Swiss Day Hikes

Trail-run-friendly loops with current snow conditions verified by satellite.
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Race Calendar

Top trail races with course maps, elevation profiles, and free training plans.

View all trails →

Blog

Practical guides for route planning

View all articles

Frequently asked questions

Is TrailSplits completely free?
Yes. There are no premium tiers, no hidden fees, and no paywalls for the web planner. Route planning, GPX import/merge/export, public trace heatmaps, outdoor POIs, 3D maps, elevation profiles, and color-coded gradients are all free.
Can I export a GPX file without an account?
Yes. You do not need to register, log in, or provide an email address to export your GPX routes. Just plan your route and click Export.
Does TrailSplits have 3D maps and satellite views?
Yes. You can toggle between 2D terrain maps and full 3D satellite flyovers to visualize elevation and mountain topography before your run.
What routing engine does TrailSplits use?
We use a self-hosted Valhalla routing engine optimized for OpenStreetMap (OSM) data, allowing you to explicitly prefer dirt trails and avoid paved roads.
What GPS watches are compatible with TrailSplits GPX files?
TrailSplits exports standard GPX 1.1 files compatible with all major GPS devices including Garmin, Coros, Suunto, Apple Watch Ultra, and any app that accepts GPX imports.
Is TrailSplits a free alternative to Strava route builder?
Yes. Unlike Strava, Komoot, and AllTrails which charge for GPX export and advanced features, TrailSplits offers full route planning, 3D maps, and GPX export completely free.
Can TrailSplits import and reverse GPX routes?
Yes. TrailSplits can import one GPX file or merge multiple selected GPX files into a single planner route, draw the track, reverse the route direction, let you adjust waypoints, and export a new standard GPX 1.1 file.
Does TrailSplits show heatmaps, POIs, and trail difficulty?
Yes. The planner includes a public GPS trace heatmap, outdoor POIs, hiking network overlays, surface cues, trail confidence, runnability grade, gradients, elevation profiles, and snow/terrain context.
Can TrailSplits generate roundtrip loops?
Yes. The planner can generate roundtrip loop candidates from a start point, target distance, profile, hill preference, and trail-quality signals, then let you compare and export the result.
Can TrailSplits create share videos or printable route brochures?
Yes. From the planner you can generate a short 3D route video in the browser and open a printable route roadbook with route stats, elevation, stage splits, cues, safety notes, and a QR link back to TrailSplits.