3D Route Flyover

A free 3D flyover for any route

Runners and hikers increasingly want a free, web-based way to see a route in 3D. This flyover flies a cinematic camera along your track over real global terrain, so you can read the climbs, ridgelines, and exposure before race day — and share a view that's far more compelling than a flat map.

How to fly your own route

The fastest way is right at the top of this page: drop a GPX file (or tap Choose GPX file) and the flyover starts on your route immediately. The file is read in your browser; only map imagery and terrain for the area you view are fetched. You can also open any race or trail page and choose 3D Flyover, or build a route in the Planner and fly that. Pick a camera style — Scenic, Runner POV, Chase, Action Orbit, Survey, or Orbit — and use Open full view to explore the route and access video export in the Planner.

What goes into the flyover

The flyover follows the track in your GPX, or its route when it has no track. A file with several segments, such as two days or a recording that was paused, becomes separate sections you can switch between, so it never flies a straight line across the night in between; a section with a single point cannot be flown and is left out, and the page says so. Files up to 5 MB are flown as they are. A larger file is flown as a copy simplified to 10 m in your browser, which keeps the route's shape; the page shows how many points it kept, and your file is unchanged. The distance and climb above the player are measured from your file, with the same 5 m threshold as the Course Analyzer.

What you are looking at

The ground is open aerial imagery where a national service publishes it freely (Switzerland, France, Austria, Spain, Portugal, Slovenia, Bavaria, South Tyrol and the USA) and TrailSplits' outdoor map (OpenStreetMap data) with relief shading from the Copernicus elevation model elsewhere, draped over TrailSplits' own terrain tiles. The terrain has a detail of roughly 25 to 40 metres, so it shows valleys, ridges and passes faithfully but softens cliffs, gullies and narrow crests. Imagery and terrain load for the area you look at, so the flyover needs an internet connection and a browser with WebGL.

Camera styles

• Scenic: smooth runner-following scenic camera.
• Runner POV: lowest, fastest stabilized route-following camera.
• Chase: close route-anchored 3D camera.
• Action Orbit: closer route-progress orbit.
• Survey: wider 3D terrain overview.
• Orbit: stable high-altitude orbit around the full route.

Frequently asked questions

What is a 3D route flyover?

A cinematic camera that flies along your route over real 3D terrain, so you can preview the climbs, ridgelines, and exposure before you go — and share the view with friends.

How do I fly my own GPX?

Drop a GPX file onto this page (or tap “Choose GPX file”) and the flyover starts on your route immediately — the file stays on your device. You can also open any race or trail page and tap 3D Flyover, or build a route in the Planner and fly that.

Do you upload or keep my GPX file?

Your GPX file is kept in this browser session, not published or uploaded as a file. Map imagery and elevation lookups require internet requests for the area you view. Opening the Planner keeps your route on this device unless you explicitly save or share it.

I used to use FATMAP — can this do something similar?

Yes, for the most-loved use case: a free, web-based 3D terrain flyover of any route, with global terrain and no app to install. FATMAP was a separate third-party app and is a trademark of its owner; TrailSplits is an independent tool and is not affiliated with it.

Is it free?

Yes. The 3D flyover is free and runs in your browser over open global terrain data.