FIT File Converter
Free, private, runs in your browser – no upload.
Convert Garmin FIT files to and from other formats. Perfect for sharing your workouts across different platforms.
Open or edit your FIT and GPX files
- FIT file viewer – check the map, heart rate, power and laps before you upload
- FIT file editor – trim, fix the start time or GPS drift and re-save a clean file
- All FIT file tools – viewers, editors and converters for Garmin, Wahoo and COROS files
FIT (Flexible and Interoperable Data Transfer) is a file format used by Garmin and other fitness devices to store workout data including GPS, heart rate, and power metrics. It is a compact binary format optimized for embedded devices.
GPX (GPS Exchange Format) is an open XML standard for exchanging GPS data between applications and devices. It stores waypoints, routes, and tracks with GPS coordinates, making it widely compatible with mapping and navigation software.
About Free Online FIT File 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.
Frequently Asked Questions
A FIT (Flexible and Interoperable Data Transfer) file is a binary file format used by Garmin devices to store fitness data including GPS coordinates, heart rate, cadence, and other metrics.
GPX (GPS Exchange Format) is a widely supported format that can be used with many different apps and devices. Converting to GPX makes your workout data more accessible and shareable.
The converter preserves all essential GPS data and basic metrics. However, some device-specific data might not be included in the GPX format as it has a different structure than FIT files.
Yes! The converted GPX file can be uploaded to Strava, Komoot, RideWithGPS, and most other fitness platforms that accept GPS data. GPX is one of the most universally supported formats.
GPX files can be viewed in many apps including Google Earth, Strava, Komoot, or free tools like GPXSee and GPS Visualizer. Most mapping applications support GPX import.
FIT is a binary format optimized for Garmin devices with native sensor support, while GPX is a text-based XML format designed for universal GPS data exchange. FIT files are smaller but GPX files work with more applications.
Yes, our converter supports bulk processing. You can upload multiple FIT files and convert them all to GPX simultaneously, making it easy to batch convert your workout library.
What is a FIT file?
Why convert to GPX?
Will I lose any data during conversion?
Can I upload the converted GPX file to Strava?
How do I view a GPX file after conversion?
What is the difference between FIT and GPX formats?
Can I convert multiple FIT files to GPX at once?
Related Converters
Explore other file converters that might be useful for you
FIT to ZWO Converter
Convert power-based FIT files to Zwift ZWO workouts
FIT to CSV Converter
Convert any Garmin FIT file to CSV in seconds. Exports GPS coordinates, heart rate, power, cadence, speed, and all sensor data — ready to open in Excel or Google Sheets. Free, processed in your browser.
FIT to TCX Converter
Convert any Garmin FIT file to TCX in seconds — keeps GPS track, heart rate, power, cadence, and laps intact for upload to Garmin Connect, TrainingPeaks, or Strava. Free, processed entirely in your browser.
FIT to KML Converter
Convert Garmin FIT files to KML format for Google Earth and Google Maps visualization
FIT to ERG Converter
Convert power-based FIT files to ERG format for structured indoor training
KML to GPX Converter
Convert KML files to GPX format for universal GPS device compatibility