.FIT Files
FIT File Tools
Tools for working with Garmin FIT files from fitness devices and GPS watches.
FIT File Viewer
viewerAvailable
Visualize your workout data instantly. View maps, charts, and detailed file structures directly in your browser. See GPS tracks, heart rate, power, cadence, and all other metrics from your FIT files.
Features:
- Interactive GPS map visualization
- Heart rate & power charts
- Lap and split analysis
- Device info & settings
- Session summary metrics
- 100% private - processed locally
Open Tool
FIT File Editor
editorAvailable
Modify activity metadata, trim activities, adjust GPS coordinates, and edit workout data from FIT files. All editing is done locally in your browser for complete privacy.
Features:
- Edit activity metadata (sport, name, time)
- Modify session statistics
- Trim/crop activities
- Adjust GPS coordinates
- Edit individual data points
- 100% private - processed locally
Open Tool
SmO2 Recovery Analyzer
viewerAvailable
Upload a FIT file with SmO2 data and automatically detect recovery intervals. Measure the time from minimum to maximum muscle oxygen saturation. Works with Moxy, Humon Hex, and Train.Red sensors.
Features:
- SmO2 time-series chart with HR/power overlay
- Automatic recovery interval detection
- Configurable smoothing and threshold
- CSV export of raw data and intervals
- Works with Moxy, Humon Hex, Train.Red
- 100% private - processed locally
Open Tool
File Converters
.FIT Converters
Convert your .FIT files to other formats or convert other formats to .FIT.