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2025 Privacy-first tool

Strava Analyzer

What it is

A fully static, client-side web app where you can drop your Strava export zip file and instantly analyze your activities by year—complete with charts, tables, insights, and easy export options including prompts formatted for your AI assistant.

Because everything runs entirely in your browser, your data never leaves your device. No servers, no uploads, no tracking—just instant privacy-first analysis of your Strava history.

Built as a vibe-coding experiment to explore what's possible with modern browser APIs and zero backend infrastructure.

Strava Analyzer interface showing activity analysis and charts

Stack & Tools

  • Vite
  • React
  • Client-side file processing
  • Browser APIs (File, Zip)
  • Chart libraries

Where to find

Status: Live and running at woutersmet.com/strava-analyzer/

Drop your Strava export zip (get it from Strava's account settings) and explore your activity data with complete privacy—no data ever leaves your browser.