Built for Field Teams, Athletes, and Analysts
This page came from the real problem of juggling messy GPS files, spreadsheets, JSON exports, TSV tables, XML feeds, and mixed field logs.
Whether you’re exporting runs from a watch, planning service routes, or cleaning survey logs,
you can convert everything privately in your browser.
GPX
KML
TCX
FIT
CSV
TSV
JSON
XML
XLSX
Everything runs locally using browser APIs and open libraries.
Use-Case Playbooks
Fitness & Coaching: merge weekly FIT or TCX files, export to CSV, then analyze pace, laps, and heart rate trends.
Field Operations: convert logs to XLSX, filter by time window, then export a GPX route for handoff.
Delivery & Service: build KML route previews for Google Earth and team reviews.
Research & GIS: export GPX, clean it in a spreadsheet, then import into GIS software.
FAQs & Troubleshooting
Do my files upload anywhere? No. Everything runs locally in your browser.
My FIT file won’t parse. Some devices export different variants. Re-export from the vendor app and try again.
Data looks shifted or empty. Check time zones and make sure lat/lon columns are numeric.
Very large files feel slow. Close heavy tabs and consider splitting or downsampling routes.