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Which Format Should We Add Next?

RouteConverter already reads and writes more than 100 GPS file formats — see the full list. We're now looking at a new batch, chosen because people regularly ask how to open or convert them. None of the eight below are supported yet.

Marine chartplotters

A cluster of boating/fishing formats came up repeatedly in our research, and none of them are covered by RouteConverter's existing Garmin, TomTom or GPX support:

  • Garmin ADM (.adm) — Garmin's marine-specific waypoint/route container, separate from the land-navigation GDB/MapSource format RouteConverter already reads.
  • Lowrance USR (.usr, versions 2–7) — Lowrance's binary waypoint/route/trail format for its fishfinders and chartplotters.
  • Humminbird HWR (.hwr) — Humminbird's sibling format to Lowrance USR, still used on current HELIX-series hardware.
  • Raymarine RWF (.rwf) — a simple, bounded Raymarine waypoint format (up to 50 waypoints per route, 16-character names).
  • Raymarine FSH (.fsh) — Raymarine's binary chartplotter archive format. Unlike the other four, Raymarine has never published a specification for it; what's known comes from community reverse-engineering, so support here is less certain than for the rest.

Flight simulation and drones

  • X-Plane FMS (.fms) — X-Plane's own flight-plan format, documented by Laminar Research, distinct from both the Garmin FPL format and the Microsoft Flight Simulator 2020 PLN format RouteConverter already supports.
  • DJI flight log (.txt/.mrk sidecar files) — DJI drones write these alongside their raw .dat flight log; the .dat file itself is encrypted on newer models (Mini 2 and later), so the sidecar files are the realistic target for support.

Cycling computers

  • Bryton BDX (.bdx) — Bryton's own bike-computer track format. Despite the name, it's not the Garmin FIT format under a different extension — Bryton's own documentation confirms a distinct structure.

Tell us what you need

If one of these would help you, or if you have a format of your own we haven't thought of, let us know on the RouteConverter forum — real requests from real files are what decide what we build next.