::*[https://gitlab.com/wireshark/wireshark wireshark] - is a network traffic analyzer, or "sniffer", for Linux, macOS, *BSD and other Unix and Unix-like operating systems and for Windows.
::*[https://github.com/zaproxy/zaproxy Zed Attack Proxy (ZAP)] - is an Open Source & easy to use integrated penetration testing tool for finding vulnerabilities in web applications.
::*[https://github.com/SensePost/Mallet Mallet] - is an intercepting proxy for arbitrary protocols.
::*[https://github.com/Warxim/petep PETEP (PEnetration TEsting Proxy)] - is an open-source Java application for traffic analysis & modification using TCP/UDP proxies. PETEP is a useful tool for performing penetration tests of applications with various application protocols.
====HTTP(S) Debuggers / Web Debuggers====
::*[https://github.com/httptoolkit HTTP Toolkit] - is a beautiful, cross-platform & open-source HTTP(S) debugging proxy, analyzer & client, with built-in support for modern tools from Docker to Android to GraphQL.
::*[https://github.com/jbittel/httpry httpry] - is a HTTP logging and information retrieval tool written in Perl and C.
::*[https://github.com/requestly/requestly Requestly] - Bring the power of Charles Proxy, Fiddler & Postman together with beautiful, modern UI & collaboration features.
::*[https://telerik-fiddler.s3.amazonaws.com/fiddler/FiddlerSetup.exe Fiddler] - is a Web Debugger is a serviceable web debugging proxy for logging all HTTP(S) traffic linking your computer and the internet, allowing for traffic inspection, breakpoint setting, and more.
====Other Network Tools====
::*[https://www.nirsoft.net/utils/cports.html cports] - is network monitoring software that displays the list of all currently opened TCP/IP and UDP ports on your local Windows computer.
::*[https://www.netresec.com/?page=NetworkMinerSourceCode NetworkMiner] - is an open source network forensics tool that extracts artifacts, such as files, images, emails and passwords, from captured network traffic in PCAP files.
::*[https://linux.die.net/man/8/netstat netstat] - is a Linux CLI tool to print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships.