EFB

What is Fiddler?

Fiddler is a HTTP Debugging Proxy which logs all HTTP traffic between your computer and the Internet. Fiddler allows you to inspect all HTTP Traffic, set breakpoints, and "fiddle" with incoming or outgoing data. Fiddler includes a powerful event-based scripting subsystem, and can be extended using any .NET language.

Fiddler is freeware and can debug traffic from virtually any application, including Internet Explorer, Mozilla Firefox, Opera, and thousands more.

Fiddler 2 has replaced Fiddler 1.x. Fiddler 2 supports debugging HTTPS traffic, a richer extensibility model, and can by installed side-by-side with Fiddler 1.x if desired. Note that Fiddler 2 requires version 2.0 of the .NET Framework.

Windows 2000 / XP / 2003 / Vista with Microsoft .NET Framework v2.0 or later
10 megabytes disk space / 800mhz processor (Screams at 3ghz)
128 megabytes RAM (512mb+ highly recommended)

Improved APIs for automation
Improved inspectors
Improved SimpleFilter tab
Improved compression efficiency
Improved international support
Improved TextWizard
Many bugfixes

New goodies
- Added icons for tabs, shorter/smarter titles
- Introduced client socket reuse option
- Updated Options dialog with Client Socket Reuse option and Find More Extensions... link
- Added Utilities.ReadSessionArchive() method; returns a Session[] array.
- Header Editor form now shows text length
- Added Utilities.TrimBeforeLast string function
- Significant rewrite of SuggestedFilename
- Hit "U" to make an unconditional re-request

SmartScroll Session List
Minor Inspector improvements
Enhanced Timers
Many bugfixes