HAR Network Capturer

Tracking since Apr 7, 2026.

Changelog

• May 3, 2026
  description

  Full-fidelity network traffic capture and export to HAR format. Record requests, responses, headers, and bodies from any tab.

  End the frustration of missing logs and incomplete network diagnostics.
  
  HAR Network Capturer is the definitive network diagnostic tool for developers, QA engineers, and technical support teams. Capture the full network lifecycle of any tab with a single click, analyze requests in high fidelity, and export them instantly to industry-standard formats.
  
  🚀 Why choose HAR Network Capturer?
  While native browser DevTools are powerful, they can be cumbersome for quick exports or non-technical users. Our extension provides a streamlined interface and advanced memory management, allowing you to capture long sessions without slowing down your browser or losing critical data.
  
  💎 Key Features:
  Instant Recording: Start and stop capturing traffic (XHR, Fetch, Images, Scripts) on the active tab instantly.
  High-Fidelity Capture: Records more than just headers and status codes—captures full Request/Response bodies (Payloads).
  Domain Filtering: Eliminate the noise. Filter captures to focus only on the APIs and domains that matter to your analysis.
  Universal HAR & JSON Export: Download .har files compatible with Google HAR Analyzer, Fiddler, and all major network analysis tools.
  Smart Memory Management: Set custom limits (Max requests / RAM size) to ensure stability even on heavy websites.
  Premium UI: A sleek, professional interface with full support for Dark and Light modes.
  
  🛠️ Use Cases:
  Web Developers: Debug complex API integrations and validate payloads in real-time.
  QA & Testers: Attach complete, accurate network logs to your bug reports for faster resolution.
  Technical Support: Empower your customers to provide precise diagnostic logs in just two clicks.
  
  🔒 Privacy & Security:
  Your data is your business. All processing happens locally in your browser. No data is ever sent to external servers. You have total control over your diagnostic logs.
  
  💡 How to use it?
  Open the tab you want to inspect.
  Click the extension icon.
  Press "Start Recording" and reproduce the issue or workflow.
  Click "Stop" and export your .har or .json file.
  
  Optimize your debugging workflow today with HAR Network Capturer!

Permissions & access

Permissions

debuggertabsdownloadsstoragesidePanel

Host access

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Screenshots