Fiddler - A Powerful Web Debugging Proxy for Windows, macOS, and Linux

Fiddler is a web debugging proxy software for Windows, macOS, and Linux. It allows you to inspect and manipulate HTTP traffic between your computer and the internet. With Fiddler, you can view and analyze web requests and responses, set breakpoints, and modify request and response headers.

Fiddler acts as a man-in-the-middle between your computer and the internet, allowing you to see all incoming and outgoing HTTP traffic. You can use Fiddler to:

1. Inspect web pages: View the HTML, CSS, JavaScript, and other resources that make up a web page.
2. Debug web applications: Identify and fix issues with your web application's functionality or performance.
3. Test web services: Use Fiddler to test APIs, web services, and other HTTP-based applications.
4. Secure your web traffic: Use Fiddler to inspect and modify SSL/TLS traffic, helping you identify and mitigate security vulnerabilities.
5. Monitor network activity: Use Fiddler to monitor your computer's network activity, including incoming and outgoing traffic.

Fiddler is a powerful tool for web developers, security researchers, and system administrators who need to understand and manipulate HTTP traffic. It is free to use and has a user-friendly interface that makes it easy to get started.