FitZip.local is a browser-based tool that allows you to analyze your Fitbit step data locally. It processes Fitbit data exported as a ZIP file, and exports the step activity over the specified duration.
- Local processing: Your data never leaves your computer
- Date range selection: Analyze data for specific time periods
- 5-minute interval aggregation: View your step data in 5-minute chunks
- CSV export: Download your processed data for further analysis
- Runs entirely in the browser - no server required
- Built with vanilla JavaScript
- Uses the JSZip library to process ZIP files
- Replaces a bookmarklet that could previously do this; the bookmarklet is not functional since Fitbit removed the web dashboard app.
FitZip.local processes all data locally in your browser. No data is sent to any server or third party.