Packetyzer

Packetyzer provides a Windows user interface for the Ethereal packet capture and dissection library.

22 Alternatives To Packetyzer

Charles

HTTP proxy / HTTP monitor / Reverse Proxy
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CloudShark

CloudShark is a browser-based threat assessment tool.

Debookee

Debookee is the simplest & most powerful network traffic analyzer for macOS.

Ettercap

Ettercap is a suite for man in the middle attacks on LAN.

Homedale

With Homedale you can search for Wi-Fi / WLAN Access Points and monitor their signal strength.

Intercepter-NG

Intercepter-NG is a multifunctional network toolkit for various types of IT specialists.
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LANGuardian

NetFort LANGuardian is a network visibility solution which uses deep packet inspection to monitor, troubleshoot, and report on user & network activity.
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NetSpot

NetSpot is a free app for wireless site surveys, Wi-Fi analysis, and troubleshooting

NetStumbler

Official source of information about Netstumbler.

Nethogs

NetHogs is a small ’net top’ tool.

NetworkMiner

NetworkMiner is a Network Forensic Analysis Tool (NFAT) for Windows.

Packet Peeper

Packet Peeper is a free network protocol analyzer (packet sniffer) for Mac OS X.
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PacketSled

PacketSled is next generation network forensics and breach detection.

PacketsDump

Packetsdump is a general purpose free snifer,network diagnostic,monitor,packets capture,packets decoding,network analyzer tool.

TCPEye

TCPEye is an easy-to-use monitoring application that will display a list of all network processes.

Vistumbler

Vistumbler is a wireless network scanner for Windows Vista and Windows 7. Features:

WiFi Explorer

WiFi Explorer is a tool to scan, find, and troubleshoot wireless networks.
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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.

inSSIDer

inSSIDer Essential makes it easy to maintain small business WiFi.

iwScanner

iwScanner is a wireless scanner for linux with an easy to use graphic interface.

netcat

Netcat is a featured networking utility which reads and writes data across network connections…
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tcpdump

tcpdump is a common packet analyzer that runs under the command line.