tcpdump
tcpdump is a common packet analyzer that runs under the command line.
22 Alternatives To tcpdump
Charles
HTTP proxy / HTTP monitor / Reverse Proxy
CloudShark
CloudShark is a browser-based threat assessment tool.
Cocoa Packet Analyzer
Native Cocoa app for capturing and analyzing packets.
Ethereal
Ethereal® is used by network professionals around the world for troubleshooting, analysis…
Ettercap
Ettercap is a suite for man in the middle attacks on LAN.
Fiddler
Fiddler is a debugging program for websites.
JPerf
This project gives a better UI and new functionalities to the initial JPerf 1.
LANBench
LANBench is a simple LAN / TCP Network benchmark utility.
LANGuardian
NetFort LANGuardian is a network visibility solution which uses deep packet inspection to monitor, troubleshoot, and report on user & network activity.
Nethogs
NetHogs is a small ’net top’ tool.
NetworkMiner
NetworkMiner is a Network Forensic Analysis Tool (NFAT) for Windows.
Nmap
Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.
Proxyman
An modern and intuitive HTTP debugging proxy on macOS & iOS https://proxyman.io
Surge for Mac
Advanced Web Debugging Proxy for Mac & iOS
Wireshark
Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
Zed Attack Proxy
The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding…
httpry
httpry is a tool designed for displaying and logging HTTP traffic.
iperf
A TCP, UDP, and SCTP network bandwidth measurement tool
mitmproxy
mitmproxy is an SSL-capable man-in-the-middle proxy for HTTP.
netcat
Netcat is a featured networking utility which reads and writes data across network connections…
snort
Snort is a free and open source network intrusion prevention system.