Fiddler is a popular web debugging proxy tool that is widely used by developers and testers to analyze and monitor web traffic. However, there are several alternative tools available in the market that offer similar or even better features than Fiddler. In this article, we will explore the 10 best Fiddler alternatives and competitors in 2024.

1. Charles Proxy

Charles Proxy is a powerful web debugging tool that allows developers to intercept and inspect HTTP and SSL/TLS traffic. It offers a user-friendly interface and advanced features like breakpoints, request/response editing, and bandwidth throttling. Charles Proxy is highly regarded for its reliability and versatility, making it a top choice for many developers.

2. Wireshark

Wireshark is an open-source packet analyzer that allows users to capture and analyze network traffic in real-time. It supports a wide range of protocols and provides detailed information about each packet. Wireshark is known for its extensive filtering capabilities and comprehensive analysis tools, making it a go-to tool for network troubleshooting and security analysis.

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3. Postman

Postman is a popular collaboration platform that offers a feature-rich API development environment. It allows developers to design, test, and document APIs with ease. Postman's built-in proxy feature enables users to capture and inspect API requests and responses. With its intuitive interface and extensive integrations, Postman is a valuable alternative to Fiddler for API development and testing.

4. Burp Suite

Burp Suite is a powerful web application security testing tool that includes a proxy module for intercepting and modifying HTTP/S traffic. It offers advanced features like active and passive scanning, session handling, and vulnerability detection. Burp Suite is widely used by security professionals for identifying and fixing vulnerabilities in web applications.

5. Telerik Fiddler Everywhere

Telerik Fiddler Everywhere is a cross-platform web debugging proxy tool that offers similar features to the original Fiddler. It allows users to capture and analyze HTTP/S traffic on Windows, macOS, and Linux. Telerik Fiddler Everywhere comes with a modern and intuitive interface, making it an excellent alternative for developers and testers.

6. OWASP ZAP

OWASP ZAP (Zed Attack Proxy) is a free and open-source web application security scanner that includes a proxy feature for intercepting and modifying HTTP/S traffic. It offers a wide range of security testing capabilities and is highly customizable. OWASP ZAP is widely recognized for its active community and extensive documentation, making it a valuable tool for security testing.

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7. mitmproxy

mitmproxy is an open-source command-line tool that allows users to intercept, modify, and inspect HTTP/S traffic. It provides a flexible and extensible framework for implementing custom proxy scripts and plugins. mitmproxy is known for its simplicity and lightweight nature, making it a popular choice for developers who prefer command-line tools.

8. HTTP Toolkit

HTTP Toolkit is a comprehensive suite of tools for debugging, testing, and building with HTTP(S). It includes a powerful proxy tool that allows users to intercept and modify HTTP/S traffic. HTTP Toolkit offers a user-friendly interface and features like request/response logging, rewriting, and SSL inspection. It is designed to be easy to use and highly productive for developers and testers.

9. Zapier

Zapier is an automation platform that allows users to connect different web applications and automate workflows. While not specifically a web debugging proxy tool, Zapier includes a feature called "Webhooks by Zapier" that enables users to capture and inspect HTTP requests and responses. Zapier is known for its extensive app integrations and ease of use, making it a handy tool for developers and non-technical users alike.

10. Proxyman

Proxyman is a modern and intuitive web debugging proxy tool exclusively for macOS. It offers a beautiful interface and features like request/response interception, SSL decryption, and latency simulation. Proxyman is designed to be fast and efficient, allowing users to focus on debugging and testing their web applications.

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In conclusion, while Fiddler is a widely used web debugging proxy tool, there are several alternative tools available that provide similar or even better features. Whether you're looking for advanced security testing capabilities, API development and testing, or a user-friendly interface, Charles Proxy, Wireshark, Postman, Burp Suite, Telerik Fiddler Everywhere, OWASP ZAP, mitmproxy, HTTP Toolkit, Zapier, and Proxyman are among the top competitors and alternatives to consider in 2024. Each tool has its own strengths and offerings, so it's important to evaluate your specific needs and preferences before making a decision.