Fiddler Web Debugging Proxy Tool Download For Windows

Fiddler allows you to inspect traffic, set breakpoints, and “fiddle” with incoming or outgoing data. It includes a powerful event-based scripting subsystem and can be extended using any .NET language.

This is freeware and can debug traffic from virtually any application that supports a proxy, including Internet Explorer, Google Chrome, Apple Safari, Mozilla Firefox, Opera, and thousands more. You can also debug traffic from popular devices like Windows Phone, iPod/iPad, and others.

fiddler download for windows

It helps you debug web applications by capturing network traffic between the Internet and test computers. The tool enables you to inspect incoming and outgoing data to monitor and modify requests and responses before the browser receives them. Fiddler also includes a powerful event-based scripting subsystem, which you can extend by using any .NET Framework language.

On one hand, Fiddler can record incoming and outgoing data and on the other hand, it can also be used to ‘fiddle’ (tamper or better said, interfere) with traffic as it is being transmitted. Designed as a web debugger and a proxy server, Fiddler serves in logging data from any application that supports proxy use, such as web browsers, as well as traffic from modern devices such as iPhone and iPad.

how fiddler proxy worksFiddler and the HTTP replay options can help you troubleshoot client-side issues with web applications by making an offline copy of the test site. With these tools, you can create offline images of the browsing experience and then package and analyze the results to obtain more detailed debug information.

To download the Fiddler add-on, go to the Internet Explorer add-ons page. For more information about how to troubleshoot by using Fiddler and related tools, see the How to use fiddler and HTTP replay to have an offline copy of your site blog post and the Troubleshooting Authentication with Fiddler blog post.

The user-interface may seem overcrowded at first, but this is due to a large amount of information it aims to offer. A second glance leaves you with the impression that it’s well-organized and easy to navigate through.

By default, the capturing feature is enabled and leaving it on will populate the reports instantly. It might be a good idea to turn it off until you set some filters, which is a must if you wish to reduce the reports to certain points of interest.

Statistics include performance parameters such as response times and amount of transmitted data (in bytes), while the Inspector comprises a variety of traffic details regarding Headers, Cookies, JSON, XML, etc. In addition, you can launch multiple instances at the same time and you can save the sessions for later use.

Fiddler Web Debugger Proxy For Windows Features

Web Session Manipulation

Edit web sessions easily: just set a breakpoint to pause the processing of the session and permit alteration of the request/response. Compose your own HTTP requests and run them through Fiddler.

Performance Testing

Fiddler lets you see the “total page weight” HTTP caching and compression at a glance. Isolate performance bottlenecks with rules such as “Flag any uncompressed responses larger than 25 KB.”

Customizable Free Tool

Benefit from a rich extensible model, ranging from simple Fiddler Script to powerful extensions which can be developed using any .NET language. see a full list of ready-made add-ons.

Security Testing

Decrypt HTTPS traffic and display and modify web application requests using a man-in-the-middle decryption technique. Configure Fiddler to decrypt all traffic or only specific sessions.

HTTP/HTTPS Traffic Recording

Use Fiddler to log all HTTP(S) traffic between your computer and the Internet. Debug traffic from virtually any application that supports a proxy (IE, Chrome, Safari, Firefox, Opera and more).

Web Debugging

Debug traffic from PC, Mac or Linux systems and mobile (iOS and Android) devices. Ensure the proper cookies, headers and cache directives are transferred between the client and server. Supports any framework, including .NET, Java, Ruby, etc.

What’s New:

  • Add Packet Capture Import
  • Enhanced Composer
  • Enhanced AutoResponder
  • Enhanced Protocol Violation detection
  • Improved WebView
  • Add registry-fallback to EnableLoopback

Advantages

  • Fiddler shows details of conversations between server and user when requested at any site. This helps in website traffic monitor and troubleshoot the problems.
  • Fiddler shows details of conversations between server and user when requested at any site.
  • It helps to make changes to either the request that goes to the server and check how the server responds to the modifications. This is done mostly while spoofing js/CSS/other files/scripts.. and also in security testing.
  • This software traces and helps to verify and make sure that the request does not go to an unexpected domain.
  • Fiddler evaluation helps in giving information that how big are files, how many files are loaded, how the site runs.

Fiddler Download For Windows Software Pros and Cons

Pros Cons

According to the Fiddler website, the software works on any internet browser and on any operating system or platform

The paid Enterprise Priority Support package for Fiddler is an incredible $999 per user, and that only covers a year of support with the 24-hour response time. Compared to the free price of the base software, that’s an enormous difference and the package isn’t even all that good.

The software is completely free to download and use, but paid enterprise support is available.

How to use fiddler as a debugger tool?

Fiddler is a free web proxy tool that log all HTTP/HTTPS traffic between your web application and the Internet. So, Here you can watch the main use of the Fiddler debugger tool.

 

Fiddler Download For Windows System Requirements

Operating System Windows XP to Windows 10
Framework Fiddler 4 requires .NET V4
Hard Disk Space 8 MB
Processor 1 GHz
Memory 2 GB+ recommended

Fiddler Download For Windows Technical Details

Title Fiddler Web debugger Proxy Software
Filename FiddlerSetup.exe
File Size 6.3 MB
License Free
OS Windows 10/ Windows 8 /Windows 7
Author Telerik

To conclude, Fiddler is an excellent choice for testing and diagnosing web applications and websites. It offers am impressive quantity of information regarding HTTP traffic monitoring and is able to sniff data from any platform that features proxy support.

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