The HTTP Archive format, or HAR, is a JSON-formatted archive file format logging a web browser's interaction with a site. The extension for these files is .har. The specification for the HTTP Archive ...
The HTTP Archive format, or HAR, is a JSON-formatted archive file format logging a web browser’s interaction with a site. The extension for these files is .har. The specification for the HTTP Archive format defines an archival format for HTTP transactions used by a browser to export performance data about web pages it loads.
You can open HAR files with programs like the online HAR Viewer tool and HTTP Toolkit. Since HAR files use JSON format, you can also open them in a JSON editor or text editor. When opened in a text editor, the contents are organized into object types like log, which has information about format version and browser, and tracked webpages.
To create a HAR file, open the browser’s Developer Tools Network panel, load the site, and save the recorded data. Tools like GitLab HAR Recorder also automatically record network activity into a HAR file.
HAR analysis helps debug API integrations by inspecting headers, payloads and responses between frontends and backends to resolve issues. It also helps identify performance problems and security issues.
To view a HAR file, install software supporting the format. If unavailable, some contents may be viewed in a text editor like log information. The har extension relates to e-Sword Bible software files.
Google Chrome
Mozilla Firefox
Fiddler