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Posts Tagged ‘fiddler’

Fiddler 2 is available now!

Posted by Jean Paul on May 8, 2014

Fiddler is a Free HTTP debugging tool.


You can download Fiddler from the following location:


Click on the Download button available there. You will get the following page.


You can download the Right Version according to your .Net installation.


You can run the setup file & after Installation, Fiddler looks like below:


How it works?

Fiddler adds a hook to the Windows WinINET and can interpret all HTTP communications passing through the computer.

Starting with Fiddler

For starting with you can clear the existing sessions.  Choose the Remove All option for it.


Now open a new browser & Enter


You can see that Fiddler automatically updates the requests.

Reading Request and Response

Double click on the first URL and you can see the right hand pane have 2 sections opened.


In cases of response text view is not showing textual data, You can click the yellow-ribbon to transform it.


After transforming the contents.


We can also use the View in Notepad button to open the content in notepad.

Essential Features

Following are the essential features of Fiddler:

  1. HTTP Statistics Observation
  2. Request scanning
  3. Response scanning
  4. Cookie Verification
  5. Multiple View support

More Features

Following are the additional features to explore with:

  1. Combined Instrumentation of Requests

Internet Troubleshooting Tip

In case if you experienced Internet Connectivity Issues while Fiddler have crashed, You can start another instance of Fiddler and Close it.  This will restore the connectivity as Fiddler Proxy will be safely removed only on closing.

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