Wireshark

Wireshark is the world's foremost network protocol analyzer. It lets you capture and interactively browse the traffic running on a computer network.

Free Open Source Mac OS X Windows Linux BSD

NetStumbler

NetStumbler is a tool for Windows that allows you to detect Wireless Local Area Networks (WLANs) using 802.11b, 802.11a and 802.11g.

Free Windows

Microsoft Network Monitor

Microsoft Network Monitor is a packet analyzer. It enables capturing, viewing, and analyzing network data and deciphering network protocols. It can be used to troubleshoot network problems and applications on the network.

Free Windows

NetworkMiner

NetworkMiner is a Network Forensic Analysis Tool (NFAT) for Windows. NetworkMiner can be used as a passive network sniffer/packet capturing tool in order to detect operating systems, sessions, hostnames, open ports etc.

Freemium Windows

SmartSniff

SmartSniff is a packet sniffer that capture TCP/IP packets and display them as sequence of conversations between clients and servers. You can view the TCP/IP...

Free Windows

iwScanner

iwScanner is a wireless scanner for linux with an easy to use graphic interface. Its designed in Glade and written in python, so it just need PyGTK to run in any...

Free Open Source Linux

Packetyzer

Packetyzer provides a Windows user interface for the Ethereal packet capture and dissection library. Ethereal is used by network professionals around the world for...

Free Open Source Windows

LANGuardian

LANGuardian is the first and only deep packet inspection (DPI) software to provide SMB network managers with root cause information about network and user activity....

Commercial Mac OS X Windows Linux

PacketSled

PacketSled is next generation network forensics and breach detection. Continuously monitor for advanced threats and policy violations missed by other defenses, then...

Freemium Mac OS X Windows Linux Web

Packet Peeper

Packet Peeper is a free network protocol analyzer (packet sniffer) for Mac OS X. TCP stream reassembly. Privilege separation. Simultaneous capture sessions. ...

Free Open Source Mac OS X

Pirni Pro

Pirni Pro is a network security tool designed for iOS, and specifically for iPhone and iPod Touch devices. It is capable of intercepting traffic on a wireless network...

Commercial iPhone

AirSnare

AirSnare is another tool to add to your Wireless Intrusion Detection Toolbox. AirSnare will alert you to unfriendly MAC addresses on your network and will also alert...

Free Windows