Fiddler - Fiddle with HTTP traffic for development or fun

There is a Mobile Optimized version of this page (AMP). Open Mobile Version.

Firstly, if your a Web Developer, then, like me you get extremely annoyed when having to fix JavaScript and working with slow FTP or an external client – unlike HTML and CSS, JavaScript cannot be edited on the fly, neither are there any useful tools for modifying the JavaScript ready for a page load/reload.

Similarly, sometimes you just want to make a site function a little different than it was intended, perhaps drop some useful links into a game to speed up your play – or change the style so usability is better.

This is where Fiddler comes in handy, it allows you (amongst other things) to trick any browser into thinking it is fetching a file from a website, when in fact the file could be on another website, or even on your machine!

This opens a world of possibility to Web Developers wanting to test new JavaScript but have to go through a tedious chain of management to commit their changes to a live server, or when you don't have access to the server at all. And dare I say, script kiddies and hackers will definitely have a ball!

It works by sniffing what browsers are looking for, and by using your rules it can figure out whether you wish to server a different file, such as a file on a completely different server, Or a file on your desktop! What’s amazing though, is the website still thinks it is from the URI it was originally accessed. Meaning you do not get XSS problems.

 

Download Fiddler Now!

Author: Dean Williams

I'm a Web Developer, Graphics Designer and Gamer, this is my personal site which provides PHP programming advice, hints and tips