HAR files can contain sensitive data, so make sure you store these files securely. This can be highly useful in troubleshooting complex issues by obtaining additional information about the network requests that are generated in the browser while an issue occurs. HAR (HTTP Archive) is a file format used by several HTTP session tools to export the captured data. HAR files contain sensitive data! all the information that you submitted while recording: personal details, passwords, credit card numbers What is a Chrome HAR file? har file DONE!Ĭollect HAR/VAR Logs in Chrome Press F12 (Windows) or press Option+Command+I (Mac). Open Chrome, Press F12, Click on the Network Tab. How do I open a Har file in Chrome?Ĭhrome now supports loading HAR files. select the HAR file you saved in the previous steps and click Open. How do I open an IE HAR file?Ĭlick File-> Import Sessions In the Select Import Format window that appears, select HTTPArchive in the drop-down box and click Next. Click the Export icon on the far right of the network tab and save the HAR file. Click the Network tab and complete the activity that is causing issues. Open the Develop menu and select Show Web Inspector. Since HAR files are saved in JSON format, you can also open them using a JSON editor or a plain text editor, such as Microsoft Notepad or Apple TextEdit. You can open HAR files with various programs, including the online HAR Viewer tool and the open source, cross-platform HTTP Toolkit.