View HTTP Archive (.har) files to analyze network requests.
HAR (HTTP Archive) is a file format containing network request details exported from browser DevTools. This tool displays a list of requests with status codes, timing, and size — convenient for performance debugging without reopening DevTools.
In browser DevTools, open the Network tab, perform the necessary actions on the page, then right-click on the request list and select 'Save all as HAR'.
No, the file is processed entirely locally in your browser.