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Fiddler Everywhere is a high-performance, cross-platform web debugging proxy for any browser, system or platform. It is a web debugging tool that logs all HTTP(S) traffic between your computer and the Internet. It inspects and edits traffic, issue requests, and fiddle with incoming and outgoing data.

FiddlerCore is a .NET class library you can integrate into your .NET applications. FiddlerCore allows you to capture and modify HTTP and HTTPS traffic just like Fiddler, without any of the Fiddler UI.

Fiddler Jam is a troubleshooting solution for support and development teams designed to help them troubleshoot issues quickly, easily, and securely.