FIT to GPX Converter Online

About This FIT to GPX Converter

After reviewing leading FIT to GPX converters on Google, Reddit, Strava forums, and community blogs, we found the same complaints: slow server uploads, cluttered ads, missing CSV export, and zero quality checks. This all-in-one single page tool fixes those friction points with an entirely client-side engine, progressive interface, and a reusable session vault so you stay productive even when offline. The custom FIT parser supports timestamp compression, developer fields, and the metrics that runners and cyclists actually care about. You get compliant GPX files, handy CSV exports, and an elevation sparkline that is ready to paste into decks or share with your coach.

How to Use

Drop a .fit file from your watch, bike computer, or smart trainer onto the upload card. The converter reads it entirely in your browser and surfaces a quality score, device metadata, start time, and location bounds. Use the export bar to grab the GPX download, copy the raw GPX, or generate a ready-to-share performance summary. If you want spreadsheets, tap the CSV button. The Session Vault saves up to five conversions, so you can revisit historic rides without searching for the original files. Need visuals? The elevation sparkline renders instantly and exports as a lightweight PNG.

Tips for Clean GPX Files

Ensure your device clock is synced before recording so the timestamps line up with the FIT standard epoch. If you see the quality score dip, review the sampling interval insight—irregular gaps often mean your sensors slept mid-ride. For better elevation gain, calibrate the barometer or import the GPX into a mapping service that offers elevation corrections. When combining multiple workouts, convert each FIT file individually, merge the resulting GPX tracks in a planner, and then archive them using the Session Vault for quick reference. You can also copy the summary text and drop it straight into training logs or Slack updates.

FAQs

Can I use this tool offline? Yes. Once you load the page, every conversion happens locally, so you can pull the tab up on bad Wi-Fi or airplane mode.

Does the converter handle developer data fields? It safely skips developer-only fields while preserving the metrics that matter for GPX compatibility.

What makes the Session Vault unique? Competitors rarely remember your past exports—here we cache the last five conversions privately in your browser for one-click access.

Is my data ever uploaded? Never. We respect your privacy by processing in the browser, then offering local exports only.