What is Fiddler good for?

Experience Level: Junior
Tags: FiddlerTools


  • Fiddler is a tool for monitoring HTTP traffic that flows between programs installed on your computer and remote web servers.
  • It is used for analyzing and debugging web applications and web pages

Fiddler allows you to:

  • Intercept HTTP traffic (requests, respones)
  • See the content of request/response
  • Visualize the response
  • Filter out the unnecessry data (so you can find what you are looking for and ignore the rest)
  • Create and modify HTTP requests and understand how HTTP protocol works
  • Troubleshoot network and connection problems in web applications
  • Evaluate performance of your web application
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