Fiddler – an awesome tool for viewing/debugging HTTP traffic

Fiddler is a great little tool for viewing HTTP traffic on your machine. It sets up a debugging proxy server on your machine so it can easily snoop all of the HTTP traffic from any apps that properly detect the proxy. You can see each request and response. It makes it easy to see the headers and also has viewers for lots of common types of traffic. It’s much easier to use that applications like EtherPeek or Netmon (but far less general and powerful).

Comments (2)

  1. Eric says:

    Less powerful? 😉

    Can the current versions of Etherpeek or Netmon alter traffic as it passes by?

  2. Dan Crevier says:

    Ok, good point. That wasn’t fair. Fiddler is completely focused on HTTP and is more powerful than EtherPeek or Netmon. But EtherPeek and Netmon do a bunch of stuff you probably don’t care about if you are working with HTTP.