Quick Export of HAR Files: A Complete Guide to 5 Major Browsers

When performing website diagnostics and troubleshooting, HAR files are an essential tool for technical support teams. HAR (HTTP Archive) files can record all network communications between your browser and the server, helping professionals quickly identify the root cause of issues. No matter which browser you use, the following comprehensive guide will help you easily export HAR files.

Understanding the Importance of HAR Files

Essentially, HAR files are JSON-formatted logs that detail every network request sent by the browser during webpage loading, server responses, load times, and all related technical parameters. When a website runs slowly, transactions fail to complete, or other anomalies occur, exporting a HAR file allows the technical team to accurately reproduce the situation and quickly resolve the problem.

How to Export HAR Files in Google Chrome

First, ensure your Chrome browser is updated to the latest version. Open Chrome and navigate to the webpage you want to monitor or troubleshoot.

Next, click the Chrome menu icon in the top right corner, select “More tools → Developer tools,” or press F12 directly. The Developer Tools window will open as a panel on the side or bottom of Chrome.

In the Developer Tools, click the “Network” tab. You will see a red circle in the top left corner of the network tab, indicating recording is active. If the circle is black, click it to start recording browser activity. Make sure the “Preserve log” option is enabled.

Now, refresh the webpage and perform the transaction or actions you want to monitor. Once the operation is complete, right-click any line in the activity pane and select “Save all as HAR with content” or click the “Export HAR” icon to download the HAR file.

How to Export HAR Files in Firefox

Open Firefox and go to the page you want to monitor. Click the menu button in the top right corner, select “More tools → Web Developer tools,” or press F12.

With the Developer Tools open, click the “Network” tab. Then, click the gear icon or settings button and enable “Persist logs” to ensure all network activity is retained after page refresh.

After setting this, refresh the page and perform the actions to monitor. When finished, right-click any line in the activity pane and choose “Save all as HAR” or click the “Export HAR” icon and select “Save all as HAR” to complete the export.

Safari and Microsoft Edge HAR Export Guides

Safari Browser:

Open Safari, navigate to the page to monitor, then go to Safari > Preferences > Advanced, and check “Show Develop menu in menu bar.”

Click “Develop” in the menu bar and select “Show Web Inspector.” Then, go to the “Resources” tab and enable “Save logs,” then switch to the “Network” tab.

Refresh the page and perform the required actions. After completion, right-click any line in the activity pane and select “Copy all as HAR.” This copies all request information to the clipboard. Paste the content into a new text file with a “.har” extension, save it, and send it for analysis.

Microsoft Edge (Chromium-based):

Navigate to the page to monitor. Click the “Settings and more” menu (three dots) in the top right, select “More tools → Developer tools,” or press F12. The Developer Tools panel will open on the side or bottom.

Click the “Network” tab. Ensure “Disable cache” is unchecked (default enabled). The green “Start profiling” button should be active, indicating capture is running.

Refresh the page and perform the actions to monitor. When done, click the “Export HAR” icon to download the HAR file.

HAR Export Steps in Brave Browser

Open Brave and go to the page you want to monitor. Click the Brave menu icon in the top right, select “More tools → Developer tools,” or press F12. The Developer Tools panel will open on the side or bottom.

Click the “Network” tab. You will see a red circle indicating recording has started. If it’s black, click it to start recording. Make sure “Preserve log” is enabled.

Refresh the page and perform the actions to monitor. When finished, right-click any line in the activity pane and select “Save all as HAR with content” or click the “Export HAR” icon to download the file.

Summary of HAR Export Across Browsers

The process of exporting HAR files in the five main browsers is fundamentally the same: open developer tools → go to the network tab → enable logging → perform actions → export HAR file. Chrome, Edge, and Brave have very similar interfaces since they are based on Chromium. Firefox and Safari, due to their own engines, have slight differences in operation, but the exported HAR files are identical in content.

Regardless of which browser you choose, remember: before exporting the HAR file, you must record the complete operation process to capture all relevant network requests. Once you have the HAR file, you can send it directly to the technical support team for diagnosis. They will analyze the HAR content to quickly locate the problem.