The Fit File Repair Tool allows you to merge two files (e.g. of two training devices, one recording power, the other recording GPS, heart rate, cadence etc.) containing the same activity into one file.

The two files can be synchronized by
(a) timestamp
(b) duration
(c) distance
very easily.

The following PDF file illustrates how you can merge files in three steps in less than 3 minutes.

Merging two files (.fit, .tcx, .hrm) into one file (.tcx or .fit)
FFRT-Merge-Screenshots.pdf
PDF-Dokument [4.0 MB]

News

2024-04-09:

Version 8.16.5

now available!

Last major changes:

several critical changes regarding the import of lap and session records
runtime optimizations, especially when merging files
added support for Garmin Venu 3
added support for Garmin Edge 840/540
many memory (RAM) optimizations, relevant for MS Access 32bits installations
added Rouvy in list of manufacturers
improved compatibility with Stryd files
Batch File Rename (still beta)
import/export/display of data field "motor power"
added support for several new decives (Suunto, Coros, Garmin)
added support for Garmin Edge 1040 (solar)
added support for Garmin Forerunner 255 and Forerunner 955 Solar
added Garmin Fenix7 and Epix to list of supported devices
fixed an issue that could cause an error when Garmin Connect tries to save a modified activity (for instance after chaning the activity name)
FTP library replaced due to problems with MS Defender Anti Virus
Training Effect/Training Load data will no longer be lost when combining two files using "Append Mode"
Import of larger fit/tcx/csv files significantly accelerated
added support for Garmin Forerunner 745
added support for Garmin Edge 130 Plus and Edge 1030 Plus
Version 8.10.12: Import of fit files 30 - 40% faster than with previous versions
Import function for Golden Cheetah JSON files implemented
Improved handling of Suunto fit files without Start/Stopp events
nutrion data is imported, exported and displayed in "session details"
added support for DashWare CSV files (import)
license issue removed (thanks! for the confidential hint!)
workaround for "query is corrupted" message after installing Windows Update implemented
support of MTB Dynamics data fields added
new feature for combining (merging) bike computer/running watch recording with VR (Zwift etc) recording
Developer data fields can be created
contents of native data fields can be copied into developer data fields
Information about Personal Data (Data Privacy) in imported and exported file added
memory usage optimized - handling of large fit files strongly improved
File Upload to komoot
Option "Export as FIT file using FIT file definition 1.0" added
Options "Export to MS Access Database" and "Export to MS Excel document" added
"AutoCompact" option of MS Access enabled-> cached data will be removed and file size will be reduced when the tool is closed
User Manual updated
additional Trainige Effect data are being imported and exported
improved export to and re-import from MS Excel
new file upload functions for Strava and TrainingPeaks
improved Workout Editor
improved HRM file import
Fixed some date issues in import / export of HRM files
Improved compatibility with Hammerhead Karoo .fit files
Optimized GPS distance calculation
Export as Sigma SLF file implemented
Increased compatibility between Wahoo Elemnt .fit files and Garmin Connect
New Import option: "Large File Mode"
Issues with Data Developer Fields fixed
Improved .fit Course File Export
Import function for iBike CSV files added
"Elevation Correction" improved
Compatibility with Wahoo Elemnt/Bolt improved
Import of PWX (Peakware) files added
Export your activity as ZWIFT workout (ZWO)
Import of RowPro Rowing files added
Import of PainSled Rowing files added
Import and Export of .fit files with Developer Data added
Select temperature unit (C/F) independently from distance unit (km/mi)
Added support for "Time in Heart Rate Zones" and "Time in Power Zones" diagrams in Garmin Connect
Added support for Import of Wahoo Elemnt files (.fit and .csv)
7.2. Creation of Course files (with turn by turn course points) added
7.1. Support for Fenix 3 HR added
7.1. Improved tcx file import for Polar files
7.1. Import of segments fit files added
7.1. (Map &) Chart function improved
7.1 Support for Monitor Files of Activity Trackers added
7.1 Import of SRM activitiy recordings (CSV format) added
7.1 Display your activity in Google Earth!
7.0 New diagrams implemented (Line graphs for heart rate, speed, cadence, altitude, temperature etc)
7.0 Import of Painsled Rowing files added
7.0 Improved Display of activity in GoogleMaps (added Weather Information: temperature, wind speed, wind direction)
7.0 Export of Courses as tcx files added
7.0 added support for TACX and bkool indoor trainers .fit files
7.0. added support (import, export) of Virb XE files
6.5. added support (import, export) of swim files with heartrate data/ R R values
6.5. added support for TCX files created by "Tacx film"
6.5. fit files created by "Teasy One" devices can be imported now
6.5 Dynamic speed values for courses/"Virtual Partner"
6.4. Gear Usage Diagrams added
6.4. Algorithm for "Gear Guessing" added (beta)
6.4 check and modify crank length settings in settings.fit
6.3. added support for Virb X files
6.3. additional timestamp correction algorithm implemented
6.3. solved an issue with editing pool swim files
6.2. (07/2015)
corrected an issue with editing pool swim files
6.2. (06/2015) Workout Editor added (Settings-Program Settings-Activate Workout Editor)
6.2.11 (05/2015) Message Type "Record": new comparison of data fields added (see window "Message Type Details")
6.2. Garmin's new data fields "Time Standing" and "Standing Count" implemented (Import & Export)
6.1 (05/2015) Sigma SLF file import implemented
6.1 (05/2015) HRM file export improved
6.0. (03/2015) Strongly improved repair functionality
6.0. (03/2015) Merge Session function implemented
6.0 (03/2015) Improved Cycling Dynamics data support
5.22. (01/2015) Improved Batch File Conversion (fit, tcx, hrm)
5.22. (01/2015) Improved Editing of Pool Swim Activities
5.22. (01/2015) Improved Elevation Correction
5.22. (01/2015) Improved Error Correction (if GPS data is corrupted at the beginning of the recording)
5.22. (01/2015) Fixed an issue with export of cycling dynamics data
5.22 (12/2014) Calculation of Max Avg. Power 5/20/60 minutes added on register tab "Power"
5.22 (12/2014) Import function for First Degree Fitness (FDF) files added
5.22. (12/2014) Handling (Repair & Export) of Pool swim files strongly improved
5.21 (11/2014) totals.fit of Edge 1000 running firmware version 2.7 can be modified, even total values of activity profiles
15.21. (11/2014) support of new "Cycling Dynamics" data fields
5.20. (10/2014) Improved Timestamp Correction
5.20. (10/2014) improved Elevation Correction
5.19. (10/2014) Added Forerunner 920XT support
5.19. (10/2014) Calculate Normalized Power (NP) per LAP
5.19. (10/2014) Import of Suunto XML / SML files added
5.19. (10/2014) DI2 gear info is imported and transferred to MS Excel
5.19 (09/2014): German User Interface added
5.18 (06/2014): Estimated power values
5.18 (06/2014): Support of Garmin Edge 1000 files added
5.18. (06/2014): Support of Magellan/Mio 505 .fit and .gpx files added
5.18 (06/2014): Batch File Conversion (FIT <-> TCX <-> HRM)
5.18 (06/2014): Batch File Upload to Garmin Connect, Strava etc.
5.17 (05/2014): New File Upload to Strava
5.12 (03/2014): Conversion Activty -> Course and Course -> Activity

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