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.
This online tool can be used to preview an existing HAR file(s).
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 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.
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.
This online tool analyses a HAR file and provides report based on best performance practices.
Pagetest allows you to provide the URL of a webpage to be tested. Results can be also exported to HAR.
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 is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet.
Catchpoint provide application performance monitoring to gauge user performance and pinpoint user problems
dynaTrace Ajax Edtion 2.0 supports exporting captured Network Traffic in the HAR format.
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.
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.
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).
BrowserMob Provides FREE Website Monitoring and Load Testing.
Blaze Mobile Performance Test uses real iPhone and Android agents to conduct a performance analysis of browsing your website on a mobile device.
HAR exporter for Subgraph Vega.
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 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 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 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.
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 helps Front-End Engineers to debug and optimize their webpages on iPad and iPhone.
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.