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HAR Adopters

This page summarizes existing tools, projects and applications (made by third parties) that support HTTP Archive format (HAR). This format is based on JSON and is typically used by tools that consume/produce data collected by monitoring HTTP communication. Note that you can display an existing HAR file online using HAR Viewer.

Are you an author of a new tool that adopts HAR and want me to update this page? Just email your submissions to the HAR discussion group or me.

List of HAR adopters

Firebug/NetExport

NetExport is an extension for Firebug that allows exporting data collected by Firebug's Net panel, into HAR file.

HAR Viewer

This online tool can be used to preview an existing HAR file(s).

HttpWatch

HttpWatch is an HTTP viewer and debugger that integrates with IE and Firefox to provide seamless HTTP and HTTPS monitoring without leaving the browser window. Collected data can be saved into a HAR based file.

IE9 Developer Tools

The developer tools for IE9 include a Network tab that gives developers insight into what resources a web page is using. Captured data can be saved into an XML file (XML version of HAR).

Chrome Developer Tools

You can export data from the Network panel into HAR format.

ShowSlow

ShowSlow supports HAR beacon that can be used either manually or with a simple script that posts HAR file as a POST body.

HTTP Archive Reader

HTTP Archive Reader allows you to read files exported from Firebug Net Panel.

DebugBar

An Internet Explorer plug-in with support to view HTTP/S request to check cookies, GET and POST parameters, view server info. All can be exported into a HAR file.

HAR to PageSpeed

HAR to PageSpeed is a command line utility that allows to get PageSpeed output from a HAR file.

There is also an online tool that utilizes HAR2PS and provides a preview of a HAR file.

NetRules

This online tool analyses a HAR file and provides report based on best performance practices.

WebPagetest

Pagetest allows you to provide the URL of a webpage to be tested. Results can be also exported to HAR.

GTmetrix

GTmetrix can help you develop a faster, more efficient, and all-around improved website experience for your users. Integrates Page Speed, YSlow, HAR Viewer.

Fiddler 2.2.9.6+

Fiddler is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet.

Catchpoint

Catchpoint provide application performance monitoring to gauge user performance and pinpoint user problems

dynaTrace

dynaTrace Ajax Edtion 2.0 supports exporting captured Network Traffic in the HAR format.

PushToTest TestMaker

TestMaker is an Open Source Test (OST) tool that repurposes HAR files as functional tests (regression test, smoke test, integration test,) load and performance tests, and production monitors.

REDbot

RED can create HAR files as output, containing both timings and its own analysis of the responses, as HAR extensions.

JMeter to HAR converter

As the name suggests, this tool converts Apache JMeter output to HAR.

WatchMouse

At WatchMouse we use HAR as the internal storage format for both Real Browser Monitors and for multi-step monitors. Users can see the HAR in our portal as a waterfall (we use the HAR Viewer) and download the HAR file. See a showcase where we demonstrate this (both HAR based waterfall charts and HAR download).

Browser Mob

BrowserMob Provides FREE Website Monitoring and Load Testing.

Blaze.io

Blaze Mobile Performance Test uses real iPhone and Android agents to conduct a performance analysis of browsing your website on a mobile device.

3PMobile

3PMobile™ software delivers real-time mobile data via the browser. It’s a Mobile browser that measures HTTP traffic performance and outputs the data in a HAR format. Check out an example.

CrossBrowserTesting

CrossBrowserTesting allows you to test your website live via your browser and remote VNC sessions. Now you can interactively test your ajax, javascript, and flash on all operating systems and browsers from anywhere! Network activity is recorded during live tests and available as HAR logs.

Subgraph Vega

HAR exporter for Subgraph Vega.

Charles

Charles is an HTTP proxy / HTTP monitor / Reverse Proxy that enables a developer to view all of the HTTP and SSL / HTTPS traffic between their machine and the Internet. This includes requests, responses and the HTTP headers (which contain the cookies and caching information). Supporting HAR since Charles 3.6

HARLog

HARLog is a utility to take the HAR output and create a log format that can be imported into Excel or some other charting tool. HarLog can also generate a "pivot table" style report summarizing data from a collection of HAR files. This is useful if you wish to get average page performance over time and or you would like to baseline the performance of a site under development across versions.

HAR Storage

HAR Storage is free and open source repository for automated client-side performance testing. Core features: measurements over time, detailed stats, aggregation and comparison of test results, chart and table exporting, content breakdowns, embedded HAR Viewer, integration with Page Speed, cross-platform, cross-browser. Online demo is available here.

har2gnuplot

har2gnuplot convert a HAR file into a gnuplot file, so you can use your network-dumps in a paper. Just copy your har-file into the main directory and run make. gnu-files and png-files will be created.

Funomy

At Funomy we use HAR v1.2 to really store whole web pages. We have developed services that operate with HAR format in order to generate web performance analysis (WPO).

MIHTool 5.0

MIHTool helps Front-End Engineers to debug and optimize their webpages on iPad and iPhone.

har-tools

Har-tools extract files from HAR file. Domain name and all fold info are kept.

Check My Website

Check My Website is a service to remotely monitor websites availability and performance every minute from various places around the world. It uses HAR to give better insights into performance bottlenecks.

OWASP ZAP

The Zed Attack Proxy (ZAP) project is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications. It is designed to be used by people with a wide range of security experience and as such is ideal for developers and functional testers who are new to penetration testing.

LoadStorm

LoadStorm The easy and cost effective load testing tool for web and mobile applications.

List of HAR Libraries

Java HarLib

HarLib is an open source Java library for the HAR v1.2. Read/write HAR files from Java, Database mapping of HAR objects into any databases through JDBC, Open Source - Apache v2 license.

Archive::Har

Archive::Har is a Perl library that allows the user to interact with HAR files. It's an open source based on The Perl 5 License (Artistic 1 & GPL 1).

HTTPArchive.js

HTTPArchive.js is JavaScript library to manipulate HTTP Archive 1.2 JSON objects. You can install with Bower or NPM. Licensed under the MIT license.