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Have you ever found yourself wondering how Microsoft Internet Explorer interacts with your Web application? Have you encountered a strange performance bottleneck that you can't track down? Are you curious about which cookies are being sent, or what downloaded content is marked as cacheable?
Fiddler can help you answer these questions, and many more. Fiddler is an HTTP debugging proxy that logs all HTTP traffic between your computer and the Internet.
Fiddler enables you to inspect all HTTP traffic, set breakpoints, and "fiddle" with incoming or outgoing data. Fiddler is much simpler to use than NetMon or other network debuggers because it exposes only HTTP traffic and does so in a user-friendly format.
Fiddler Powertoy includes a simple but powerful Microsoft JScript .NET event-based scripting subsystem flexible enough to support a broad array of HTTP debugging tasks. Written in C# on the Microsoft .NET Framework, Fiddler is available as an unsupported PowerToy for Internet Explorer.
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What's new What's new in version 184.108.40.206 Beta
- Improved column customization
- Improved performance
- New art
- Many bugfixes
Technical information Requirements, supported languages and OS
- Supported OS: WinXP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64
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