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1.2.2 • Public • Published


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JavaScript library to manipulate HTTP Archive 1.2 JSON objects. You can install with Bower or NPM.


  • Import/export HAR objects
  • Validates aginst HAR 1.2 Spec
  • Provides default values for common properties (Dates, Page IDs, etc...)
  • Automatically calculates headersSize when headers are added/removed
  • Automatically parses request url to create queryString objects and sets Host header
  • Automatically updates request url when queryString array is modified
  • Export headers into printed header message per RFC2616
  • Exports requests into cURL CLI commands
  • Exports queryString array into key=value string


  • Detailed API Docs.
  • Auto-calc body size when body is set
  • Construct XMLHTTPRequest objects with HTTPArchiveRequest data
  • Construct HTTPArchiveRequest object with XMLHTTPRequest response objects

Table of contents

Quick start

Four quick start options are available:

  • Download the latest release.
  • Clone the repo: git clone
  • Install with Bower: bower install httparchive.js.
  • Install with NPM: npm install httparchive.js.

What's included

Within the download you'll find the following files, providing both compiled and minified variations:

└── dist
    ├── HTTPArchive.js
    └── HTTPArchive.min.js

Sample Usage

start by creating a new log instance:

var log = new HTTPArchiveLog({

create an HTTPArchivePage object and add to the log.

var page = new HTTPArchivePage({
    'startedDateTime': new Date(),
    'comment': null,

create an HTTPArchiveEntry object and add to log.

var entry = new HTTPArchiveEntry({
    'startedDateTime': new Date()

set the entry's HTTPArchiveRequest object

entry.request = new HTTPArchiveRequest({
    'method': 'GET',
    'url': '',
    'httpVersion': 'HTTP/1.1',

lets see the result


this should output:

    "comment": "",
    "version": 1.2,
    "creator": {
        "name": "Ahmad"
    "browser": {
        "name": null,
        "value": null
    "pages": [{
        "comment": null,
        "id": "page_62143",
        "title": "Google",
        "pageTimings": {
            "onContentLoad": 90,
            "onLoad": 245
        "startedDateTime": "2014-01-05T01:40:18.548Z"
    "entries": [{
        "pageref": "page_62143",
        "cache": {},
        "timings": {
            "dns": 0,
            "connect": 0,
            "blocked": 0,
            "send": 0,
            "wait": 0,
            "receive": 0
        "startedDateTime": "2014-01-05T01:40:18.549Z",
        "time": "2014-01-05T01:40:18.549Z",
        "request": {
            "method": "GET",
            "url": "",
            "httpVersion": "HTTP/1.1",
            "queryString": [],
            "headersSize": 0,
            "bodySize": 0,
            "cookies": [],
            "headers": []
        "response": null


Refer to the Wiki for detailed API documentation.

Bugs and feature requests

Have a bug or a feature request? Please first read the issue guidelines and search for existing and closed issues. If your problem or idea is not addressed yet, please open a new issue.

Compiling Built with Grunt

HTTPArchive.js uses Grunt. If you haven't used Grunt before, be sure to check out the Getting Started guide.

Available Grunt commands

Function Command Description
Build grunt Run grunt to run tests locally and compile the JavaScript files into /dist.
Tests grunt test Runs JSHint and QUnit tests headlessly in PhantomJS (used for CI).
Watch grunt watch This is a convenience method for watching just Less files and automatically building them whenever you save.

Troubleshooting dependencies

Should you encounter problems with installing dependencies or running Grunt commands, uninstall all previous dependency versions (global and local). Then, rerun npm install.


Please read through our contributing guidelines. Included are directions for opening issues, coding standards, and notes on development.

More over, if your pull request contains JavaScript patches or features, you must include relevant unit tests.

Editor preferences are available in the editor config for easy use in common text editors. Read more and download plugins at


Keep track of development and updates.


Donations are welcome to help support the continuous development of this project.


For transparency into our release cycle and in striving to maintain backward compatibility, HTTPArchive.js is maintained under the Semantic Versioning guidelines. Sometimes we screw up, but we'll adhere to these rules whenever possible.

Releases will be numbered with the following format:


And constructed with the following guidelines:

  • Breaking backward compatibility bumps the major while resetting minor and patch
  • New additions without breaking backward compatibility bumps the minor while resetting the patch
  • Bug fixes and misc changes bumps only the patch

For more information on SemVer, please visit


Ahmad Nassri


Licensed under the MIT license.


npm i httparchive.js

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