Fiddler

Due to the sheer volume of data, complexity of web apps and the dynamic nature of traffic capturing and analyzing web traffic, identifying errors or bugs in web applications, and diagnosing performance issues can be challenging tasks.

While it's possible to manually capture and analyze web traffic using network monitoring tools or browser developer tools, dedicated tools like Fiddler offer advanced features and functionalities that can greatly simplify the process.

The idea behind the program is to lend a hand with seeing and understanding what's happening when you use websites or apps. It shows you all the information that goes back and forth between your device and the internet. Needless to say that this can help you find problems, like when a website isn't working correctly or is slow.

Moreover, the program also lets you make changes to this information in real-time, so you can fix issues or make things work better without having to wait or guess what's wrong. The direct advantage is that it becomes easier to find and solve problems when working with websites and apps.

The application offers multiple options for capturing web traffic, including acting as a system proxy, configuring browsers to route traffic through it, and setting up terminal processes for command-line applications. For command-line applications or tools that don't use a browser, you can set them up to route their traffic through the app.

Powerful filtering and analysis capabilities allow you to efficiently navigate and understand captured web traffic. You can apply various filters to focus on specific requests or responses, such as by URL, method, status code, or content type.

Fiddler’s advanced analysis tools enable users to inspect headers, payloads, and timing information for individual requests, facilitating in-depth troubleshooting and performance optimization.