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HAR File Viewer

Analyze HAR files with our HAR File Viewer. Get detailed insights into HTTP requests, response sizes, and load times.

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Self-Hosted Session Replay & Analytics

Reproduce issues, co-browse with users, and optimize your product with self-hosted session replay and analytics.

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About this Tool

What is a HAR File Viewer?

A HAR File Viewer helps developers and analysts inspect the details of HTTP requests and responses recorded in a HAR (HTTP Archive) file. It provides insights into network activity, load times, and resource sizes for web performance optimization.

How to Get a HAR File in Google Chrome?

Generating a HAR file is simple and can be done using browser developer tools.

  • Open Chrome Developer Tools (right-click on the page → 'Inspect').
  • Go to the 'Network' tab and ensure recording is active (red dot in the top-left corner).
  • Reload the page to capture the network activity.
  • Right-click anywhere in the network table and select 'Save all as HAR with content.'
  • Download the file to your computer.

Key Features of Our HAR File Viewer

  • File Upload: Upload HAR files directly for analysis.
  • Detailed Statistics: View total requests, data size, and load times.
  • Request Breakdown: Analyze each HTTP request, including status codes, methods, and response times.
  • Secure Processing: All file data is processed locally for privacy.
  • Responsive Design: Optimized for desktops, tablets, and mobile devices.

Common Use Cases for a HAR File Viewer

Our HAR File Viewer is ideal for developers, QA engineers, and web performance analysts. It helps in diagnosing network issues, optimizing load performance, and analyzing HTTP traffic:

  • Web Performance: Identify slow-loading resources and optimize page performance.
  • Debugging: Troubleshoot failed requests and investigate response headers.
  • API Analysis: Inspect and debug API request and response payloads.
  • Security Checks: Monitor unauthorized requests or unexpected redirects.

Why Use Our HAR File Viewer?

Our HAR File Viewer is designed to simplify HTTP archive analysis. Whether you’re a developer or performance analyst, this tool provides everything you need for efficient debugging and optimization.

  • Completely Free: Analyze HAR files without any cost.
  • Interactive Table: Sort and filter requests dynamically.
  • Rich Visuals: Highlight status codes and request methods with badges.
  • Cross-Platform Support: Works seamlessly on all major browsers.

Frequently Asked Questions

What is a HAR file?

A HAR file (HTTP Archive) is a JSON-formatted file containing detailed information about a web page's requests, responses, and performance metrics.

How can I generate a HAR file?

You can generate a HAR file using browser developer tools like Chrome, Firefox, or Edge. Navigate to the Network tab, record activity, and export the HAR file.

Is my HAR file data safe?

Yes, the HAR file is processed locally in your browser, ensuring your data stays private and secure.