Free FIT Converter
Convert Garmin FIT files to and from other formats. Perfect for sharing your workouts across different platforms.
Your Data is Secure
All file conversions happen directly in your browser. We never upload, store, or save your files on any server. Your data remains completely private and secure.
About Free FIT Converter
Learn more about the converter and its creator

Jonas
I'm a software developer and sports enthusiast. I created these converters to help athletes manage their workout data efficiently.
About FIT File Converters
FIT (Flexible and Interoperable Data Transfer) files are the standard format used by Garmin devices and many other fitness trackers. Our FIT converter allows you to convert FIT files to and from various formats, making your workout data accessible across different platforms and devices.
What Makes FIT Files Special
FIT files are binary files that store comprehensive fitness data including GPS coordinates, heart rate, power, cadence, speed, altitude, and other sensor data. They're the native format for Garmin devices and are widely used in the fitness industry for their efficiency and comprehensive data storage.
Conversion Capabilities
Our FIT converter supports multiple conversion directions, allowing you to:
- Convert FIT files to GPX for universal GPS compatibility
- Transform FIT files to TCX for detailed workout analysis
- Export FIT data to CSV for spreadsheet analysis
- Convert FIT files to KML for visualization in Google Earth
- Transform power-based FIT files into Zwift workouts (ZWO)
- Create structured ERG workouts from FIT files
Data Integrity
All conversions preserve essential workout data including GPS tracks, sensor data, timestamps, and workout metadata. Your fitness data remains accurate and complete throughout the conversion process.
About FIT File Converters
FIT (Flexible and Interoperable Data Transfer) files are the standard format used by Garmin devices and many other fitness trackers. Our FIT converter allows you to convert FIT files to and from various formats, making your workout data accessible across different platforms and devices.
What is a FIT File?
FIT files are binary files that store comprehensive fitness data including GPS coordinates, heart rate, power, cadence, speed, altitude, and other sensor data. They're the native format for Garmin devices and are widely used in the fitness industry.
Supported Conversions
Our FIT converter supports conversion to and from multiple formats:
- FIT to GPX: Convert FIT files to GPX format for universal compatibility with mapping and GPS applications
- FIT to TCX: Transform FIT files to Training Center XML format for detailed workout analysis
- FIT to CSV: Export FIT data to CSV format for spreadsheet analysis and data processing
- FIT to KML: Convert FIT files to KML format for visualization in Google Earth and Google Maps
- FIT to ZWO: Transform power-based FIT files into Zwift workout format
- FIT to ERG: Convert FIT files to ERG format for structured indoor training sessions
Data Preservation
Our converters preserve essential workout data during conversion:
- GPS coordinates and elevation data
- Heart rate, power, and cadence information
- Timestamps and distance measurements
- Speed and pace data
- Workout metadata and lap information
Common Use Cases
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1
Platform Migration
Switch between different fitness platforms while preserving your workout history
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2
Data Analysis
Export FIT data to CSV for detailed analysis in spreadsheet applications
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3
Route Sharing
Convert FIT files to GPX or KML to share routes with friends and on mapping platforms
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4
Indoor Training
Transform outdoor FIT workouts into structured indoor training sessions (ZWO, ERG)
How It Works
All conversions happen securely in your browser. Simply upload your FIT file, select your target format, and download the converted file. No data is uploaded to our servers—everything is processed locally for your privacy and security.