TRANSFORM
YOUR RUNS

Convert Polar Flow running data into compact, LLM-friendly JSON for AI coaching analysis.

Example: https://flow.polar.com/shared/abc123xyz

HEART RATE ZONES

Training zone analysis with durations, averages, and compliance for structured workouts.

PERFORMANCE METRICS

Running Index, cadence, power, pace—all converted and ready for analysis.

LLM-OPTIMIZED

Compact JSON stripped of noise, perfect for AI running coaches and training analysis.

HOW IT WORKS

1

PASTE URL

Share your run from Polar Flow and paste the URL

2

CONVERT

We fetch and transform your running data via Polar's API

3

COPY JSON

Get clean, LLM-ready JSON with one click

RUNNING WORKOUTS ONLY

This tool is built specifically for runners. We extract and structure data from these Polar workout types:

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REGULAR RUNS

Easy runs, long runs, recovery runs—any standard running session with distance, pace, and heart rate data.

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PHASED RUNS

Structured workouts with intervals, warm-up, and cool-down phases. Each phase is extracted with its own metrics.

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RUNNING TESTS

Polar's running performance tests with VO2max estimates, test phases, and quality assessments.