HAR File Analyzer

Turn HAR files into waterfalls, request insights, and third-party costs.

About HAR File Analyzer

Analyze HAR files in seconds

Upload a Chrome DevTools HAR export to visualize request timing and spot the biggest performance drags.

How it works

  1. Drop your .har file or paste its JSON.
  2. Review the waterfall timeline, TTFB, and download segments.
  3. Export findings to CSV or JSON for sharing.

Key features

  • Waterfall timeline: see request start, TTFB, and download time.
  • Largest and slowest: isolate the worst offenders fast.
  • Third-party breakdown: quantify vendor impact by domain.
  • Local parsing: your HAR stays in the browser.

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