FIT Sync

Simple application to sync .fit files to your desired targets. Currently supports Garmin as a sink.

Install

Homebrew (macOS)

brew install --cask dimfred/tap/fit-sync

From source

git clone https://github.com/Dimfred/fit-sync.git
cd fit-sync
bun install
make run-dev

Requires Bun and Rust.

How it works

1. Click the tray icon to open the UI
2. Connect to Garmin via the Garmin icon (opens an OAuth login window)
3. Add a sync by clicking +, select a folder to watch and choose Garmin as the target
4. Drop .fit files into the watched folder — they get synced automatically

The app runs in the background as a menu bar agent. When a new .fit file appears in a watched folder, it uploads it to the configured target and sends a notification.

Credits

The Garmin OAuth flow and API client are based on garmin-connect by Florian Pasteur. Thanks for figuring out the unofficial Garmin API and making it available!