Packet sniffer tool that captures all HTTP requests/responses sent between the Web browser and the Web server and displays them in a simple table.
Cost / License
- Free
- Proprietary
Platforms
- Windows

Fiddler is described as 'Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet. Fiddler allows you to inspect all HTTP(S) traffic, set breakpoints, and "fiddle" with incoming or outgoing data' and is a very popular http(s) debugger in the network & admin category. There are more than 25 alternatives to Fiddler for a variety of platforms, including Windows, Mac, Linux, Web-based and iPhone apps. The best Fiddler alternative is Charles. It's not free, so if you're looking for a free alternative, you could try mitmproxy or HTTP Toolkit. Other great apps like Fiddler are Burp Suite, Proxyman, HTTP Debugger and Zed Attack Proxy (ZAP).
Packet sniffer tool that captures all HTTP requests/responses sent between the Web browser and the Web server and displays them in a simple table.




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