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Your files will be securely handled and automatically deleted.
Why MyGeodata Converter?
- Convenient for both occasional and regular use
- Clean GeoJSONSeq for QGIS, ArcGIS or Manifold GIS
- Supports many formats (vector + raster), useful in mixed GIS/CAD workflows
- Batch uploads (ZIP and 7z supported)
- 7,000+ coordinate systems
- API available
Conversion from FIT to GeoJSONSeq
Upload your Garmin FIT data files (typically used in software like Garmin or Strava) and convert them online in a few clicks to GeoJSON Sequence (GeoJSONSeq) format (most commonly used in software such as QGIS, ArcGIS or Manifold GIS) or to many other formats commonly used in GIS and CAD systems.
How it works
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Data upload
Upload one or more Garmin FIT files (or a .ZIP / .7z archive).
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Review and display
Reviewing input data parameters and displaying their extent on a map.
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Conversion options
Settings for format options and conversion parameters.
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Download result
Resulting GeoJSONSeq files are packaged in ZIP format and ready for immediate download by the user.
Technical details
Input data
| Format | Garmin FIT (Flexible & Interoperable Data Transfer) |
|---|---|
| Description | Garmin activity/fitness logs with timestamps and sensor data. Tracks/routes represented as sequential points. |
| File type | vector / single-file |
| Extensions | .fit |
| Note | Binary records per Garmin FIT SDK; messages for activities, laps, records, etc. |
| Supported geometries | POINT LINESTRING |
| Reference |
https://developer.garmin.com/fit/overview/
|
Output data
| Format | GeoJSON Text Sequences (NDJSON) |
|---|---|
| Description | Line-delimited GeoJSON features for streaming and big data processing. Compatible with many ETL tools and GDAL’s sequence drivers. |
| File type | vector / single-file |
| Extensions | .geojsonl / .ndjson / .jsonl |
| Note | One GeoJSON feature per line; stream-friendly; large datasets. |
| Supported geometries | POINT MULTIPOINT LINESTRING MULTILINESTRING POLYGON MULTIPOLYGON GEOMETRYCOLLECTION |
| Reference |
https://www.rfc-editor.org/rfc/rfc8142
|
Frequently Asked Questions
What is FIT file?
The FIT (Flexible and Interoperable Data Transfer) format is a compact binary file format developed by Garmin for recording, storing, and sharing fitness and activity data. It is commonly used by Garmin devices such as sports watches, bike computers, and fitness trackers to log information like GPS position, speed, heart rate, cadence, and elevation. FIT files are designed to be efficient, reliable, and easily extensible, allowing developers to include custom data fields. Users typically encounter FIT files when uploading activities to platforms such as Garmin Connect, Strava, TrainingPeaks, or other fitness analysis applications that support the format.
What is the maximum allowed size of input data?
The maximum size of the uploaded file is 5 GB. If your file is larger, you can try to compress it into a ZIP file with the maximum compression level (9) or, even better, into a 7z file. The contents of the package will be automatically unpacked on the server.
How secure is my data?
All data transfers are performed using the encrypted SSL protocol, which ensures secure data transfer. Both uploaded and converted data is temporarily stored in the data center and is further processed according to the user’s request. After some time, the data is automatically deleted - there is no need to delete it manually.