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TCX to CSV Converter Online

Easily transform Garmin, Strava, and TrainingPeaks TCX workout files into clean CSV data. Enjoy instant split analysis, clipboard-friendly exports, and a privacy-first workflow that runs entirely in your browser.

Upload or Paste TCX

Client-side only — no uploads
Drag & drop your .tcx file here or click to browse
Waiting for TCX input.

Conversion Options

Customize splits & exports
Unique advantage Generate AI-ready, distance-based splits with pace & heart rate smoothing for each interval — a first for free TCX converters.

About This TCX to CSV Converter

This fast, privacy-first TCX to CSV converter was designed for athletes and data analysts who want accurate activity exports without waiting on server round-trips. Every calculation happens locally, so sensitive workout data never leaves your device. The interface draws inspiration from Kadence-style WordPress layouts, offering a polished, trustworthy space to review your training. Smart parsing logic reads standard Garmin fields, TrainingPeaks extensions, lap metadata, and custom developer tags, making sure your CSV captures every meaningful datapoint. Lightweight code keeps load times under two seconds, helping you review and share training logs even on the go.

How to Use the Converter

Drop a TCX file into the upload panel or paste the raw XML into the editor, then click “Convert TCX to CSV.” Within a moment you will see a preview table, a downloadable CSV, and a workout synopsis with total distance, moving time, average pace, and heart rate. Adjust the split distance and unit to produce distance-based segments that are perfect for interval reviews or coaching reports. Use “Copy CSV to Clipboard” when you need to move data into Google Sheets or Airtable, and tap “Copy Summary Text” to send a quick performance recap to your coach or teammates.

Tips for Sharper Training Analysis

For best results, make sure your GPS device records distance in every trackpoint. If you notice gaps, try the Garmin “smart recording” toggle or switch to “every second” logging before your next session. Pair your watch with a chest strap to unlock precise heart rate fields and gain richer split insights. Coaches can combine multiple TCX files by converting them separately and merging the CSV outputs inside Excel or R. The split engine smooths pace fluctuations by ignoring unrealistic spikes, keeping your interval summaries honest even when GPS jitters occur in urban canyons.

FAQs

  • What is a TCX file? A TCX file is an XML-based Training Center Database format used by Garmin, Strava, and other fitness apps to store workouts. It contains timestamped points with location, distance, elevation, cadence, heart rate, and optional sensor data.
  • Is the converter secure? Yes. The entire tool runs inside your browser with no uploads, cookies, or trackers. You can even save the page offline and convert TCX files without an internet connection.
  • Can I process multiple TCX files? Convert one file at a time for precise previews, then repeat the process. Because the tool is lightweight, batch conversions are quick, and spreadsheets can merge the resulting CSV files in seconds.

 

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