fitanonymize

CLI util to process .fit files, stripping GPS coordinates and renaming them with a random 8-character alphanumeric name.

WARNING

Data is not completely deidentified. The tool was intended only to preserve location privacy for a single or multiple users, and Does not currently remove ANT+ device IDs or headunit information from file_id messages. A third-party will potentially be able to group data from a user if this is not removed.

Happy to accept a PR or add a flag for such if it's important for your use case.

Features

• Find all .fit files in a specified directory or from a space-delimited list of files.
• Remove GPS data from .fit activity, session, and lap records.
• Save the processed files with a randomly generated name in specified output directory.

Development

• make build: for current platform
• make cross-compile: build binaries for windows, darwin, and linux

Usage

./fitanonymize -files <files_or_directory> [-output <output_directory>]

Flags

• -files: (Required) A space-delimited set of .fit filenames or a directory containing .fit files.

• -output: (Optional) The directory where the processed files will be saved. Defaults to the current directory.

Examples

1. Process a directory of files:

   ./fitanonymize -files /path/to/files -output /path/to/output

2. Process specific files:

   ./fitanonymize -files "file1.fit file2.fit file3.fit"