HAR (file format)

From Wikipedia, the free encyclopedia

The HTTP Archive format, or HAR, is a JSON-formatted archive file[1] format for logging of a web browser's interaction with a site. The common extension for these files is .har.

The specification for the HTTP Archive (HAR) format defines an archival format for HTTP transactions that can be used by a web browser to export detailed performance data about web pages it loads. The specification for this format is produced by the Web Performance Working Group[2] of the World Wide Web Consortium (W3C). This document was never published by the W3C Web Performance Working Group and has been abandoned.[3]


The HAR format is supported by various software, including:[4]


  1. ^ "Example Domain". www.example.com. Retrieved 2022-10-29.
  2. ^ "Web Performance Working Group". W3C Web Performance Working Group. Retrieved 2016-03-13.
  3. ^ "HTTP Archive (HAR) format". W3C Web Performance Working Group. 2012-08-14. Retrieved 2021-04-28.
  4. ^ Jan Odvarko. "HAR Adopters". softwareishard.com. Retrieved 2020-07-16.
  5. ^ Basques, Kayce; Emelianova, Sofia (2015-04-13). "Network features reference: Save all network requests to a HAR file". Retrieved 2022-11-28.
  6. ^ Anand Khanse (2015-07-05). "Network tools in F12 Developer Tools of Microsoft Edge browser". Retrieved 2020-07-16.
  7. ^ "Allow to save and import HARs (HTTP archives) by bunysae · Pull Request #2525 · zaproxy/zap-extensions". GitHub. Retrieved 2021-06-28.

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