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viewmygpx

Disclaimer

viewmygpx is a visualization and conversion tool. It shows you what is in a GPX file — the route as a polyline on a map, the elevation as a profile, and the stats computed from the raw coordinates and timestamps. It is not a navigation system, a route-planning authority, or a guarantor of the route's accuracy. The sections below cover what the tool does well, what it does not do, and what you should know before relying on a route in the field.

The tool is a visualization, not a navigator

The viewer renders the GPX file you provide. The polyline you see is what is in the file — nothing more, nothing less. We do not reroute, snap to roads, recompute paths, fill in missing sections, validate that the trail is open, or check that conditions are safe. Whether the route is rideable, hikeable, or even reachable from the start point depends on the file and on real-world conditions, not on the viewer.

For active turn-by-turn navigation, use a dedicated GPS device or navigation app — Garmin Edge or fenix, Wahoo ELEMNT, Komoot, Gaia GPS, or whatever your platform of choice is. The viewer's job is to show you the route before and after the activity, not to guide you during it.

GPX data has known limitations

GPX files describe geography, but the data has well-known imperfections:

  • GPS jitter. Consumer GPS receivers report coordinates with a few meters of horizontal error in good conditions and tens of meters in tree cover, canyons, or near tall buildings. The polyline may zigzag where the ground does not.
  • Elevation noise. GPS-only elevation is famously noisy. Devices with a barometric altimeter are more stable but drift with weather. Total elevation gain reported by a GPX file can be inflated by jitter, sometimes substantially.
  • Datum reference. Elevation in GPX is conventionally meters above the WGS-84 ellipsoid, not above mean sea level. The two differ by tens of meters in places. Some devices write one and label it the other; the file does not always tell you which.
  • Missing or sparse data. Some files have no elevation, no timestamps, or trackpoints sampled too far apart to render smoothly. The viewer shows what is in the file; if a field is missing, it is missing.
  • Old routes. A GPX file is a snapshot. Trails close, fire roads are gated, bridges wash out, paths are rerouted. A route from a planner or guidebook may be years old; a route from a recording could be from anyone's ride years ago.

Conversion is best-effort

The converters round-trip GPX with KML, KMZ, CSV, and GeoJSON without dropping data, but converted files always lose some fidelity relative to the source format's native semantics. KML adds styling we do not preserve; CSV flattens hierarchical structure; GeoJSON has no native time semantics. Verify the output before relying on it for anything mission-critical.

For round-trip-clean preservation, keep your file in GPX. Convert to another format only when the destination requires it.

Map tiles and accuracy

The map tiles in the viewer come from third-party providers (Stadia Maps, OpenStreetMap, Esri). The underlying data is community- or commercially-maintained and is updated on the provider's cadence. Trails, gates, junctions, and surface conditions on the tiles may not match the ground today. We have no control over the tile data; if a feature is wrong on the map, it is the provider's database, not ours.

OpenStreetMap is community-edited; if you see something wrong on OSM tiles, the project welcomes corrections via the OSM editing tools.

The sample GPX files are synthetic

The dozen sample files at /sample-gpx-files/ are programmatically generated. The coordinates are plausible for the named regions but do not trace any real trail, road, or ride. They are valid GPX 1.1 with realistic stats, useful for testing parsers and demoing apps. Do not navigate by them. Treat them as test data, not as routes.

Don't navigate by a single GPX file alone in remote terrain

For day hikes on well-marked trails close to a road, a GPX file plus a phone is usually enough. For longer or less-trafficked routes — backcountry hiking, gravel rides far from cell service, alpine terrain, anything multi-day — a single GPX file is not enough. Standard preparation:

  • Carry a paper map and a compass for the area, and know how to use them. Phone batteries die, screens crack, files corrupt.
  • Use offline navigation. Cell service is unreliable in most off-road terrain. An offline-capable navigation app (Gaia GPS, Komoot Premium, OS Maps offline) keeps the route accessible when you have no signal.
  • Verify the route is open and current. Check trail condition reports from the relevant land manager (national park, national forest, state park, local trail association). A year-old GPX file might cross a closed trail or a private parcel.
  • Tell someone where you are going and when you expect to be back. If you do not return, that itinerary is what search-and-rescue uses.
  • Carry the basics. Water, food, layers, headlamp, first-aid, fire starter, repair kit appropriate to the activity. A GPX file does not keep you warm.

The route in the file is the start of the planning process. The end of it is your judgment, the conditions on the ground, and your ability to respond when the route turns out not to match the file.

Use at your own risk

We provide viewmygpx as a free tool to help you work with GPX files. We do not accept liability for outcomes that result from using a route you previewed or converted on the site. The route is in your file; your decisions in the field are yours. Use the tool to understand the route, then exercise the same caution you would use with any GPS-based plan.

Contact

If a specific page has a factual error — about the format, about a platform, about the tool itself — please tell us. Email hello@viewmygpx.com with the URL and what is wrong; we read every message and fix what we can.