There are 2 repositories under fit-sdk topic.
Python library to parse ANT/Garmin .FIT files
A FIT file parsing and decoding library written in Python3
Python library for analysis of ANT/Garmin .fit files
Rust library to parse FIT formatted files
indoor cycling workout creator. It generates .mrc, .erg, .zwo and .fit files from an specific text input file.
Python library for analysis of running data files
With a set of GPS coordinates, calculates the total distance in meters of that route.