Private · Browser-based · Activity file diagnostics

FIT to GPX Converter

Convert a FIT activity GPS track to GPX 1.1 locally in your browser. GPS coordinates, timestamps and elevation are preserved when available.

Drop your .FIT file here

Analysis runs locally in a Web Worker. Your workout file is not uploaded.

No upload No account Browser-only processing

activity.fit

Recovery confidence
Sport
Distance
Duration
Start

FIT health report

Activity stats

Average heart rate

Max heart rate

Average cadence

Average power

Private route map

Vector-only track visualization. No map tiles or GPS coordinates are requested from a third-party map service.

Recovery estimate

Repair & recovery options

Detected anomalies

Activity record sample

The interface downsamples very large activities for display. Repair logic works from the complete local file.

#TimeHRkm/hAltitudeCadencePower

What is included in the GPX?

The converter exports track points with latitude and longitude. Elevation and timestamps are included when present in the FIT Record messages. Sensor streams such as heart rate and power are not currently embedded as GPX extensions.

Why convert FIT to GPX?

GPX is widely supported by mapping, route planning and outdoor software. Conversion can be useful when a destination accepts GPS tracks but does not understand FIT activity files.

Analyzing FIT file…