TCX Telemetry Overlay
Garmin Training Center XML format for cycling overlays
TCX (Training Center XML) is a legacy Garmin format for fitness activities. StintBox reads TCX files with GPS, heart rate, cadence, and power data. Largely replaced by FIT, but still widely exported.
Download FreeSupported data channels
How it works
Export TCX file
Download a .tcx file from Garmin Connect or other fitness platforms that support TCX export.
Import into StintBox
Drag the TCX file and your video into StintBox. Data channels are auto-detected.
Overlay and export
Add heart rate zones, cadence arc, power meter, and track map widgets to your video.
Recommended widgets
Frequently asked questions
FIT is preferred. It contains more data at higher resolution. Use TCX only if FIT export is not available from your device or platform.
Garmin Connect, Strava, Endomondo (legacy), and several other fitness platforms support TCX export.
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