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  1. Wireshark is the world's foremost network protocol analyzer. It lets you capture and interactively browse the traffic running on a computer network. It is the de facto (and often de jure) standard across many industries and educational institutions.
  2. NetworkMiner is a Network Forensic Analysis Tool (NFAT) for Windows. NetworkMiner can parse PCAP files and regenerate/reassemble transmitted files and certificates from PCAP files with HTTP, FTP, SMB, SMB2, TFTP and several other protocols.


  3. SmartSniff is a packet sniffer that capture TCP/IP packets and display them as sequence of conversations between clients and servers.
    • FreeOpen Source
    • Windows
    WinDivert allows user-mode applications to capture/modify/drop network packets sent to/from the Windows network stack.
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  4. Driftnet is a program which listens to network traffic and picks out images from TCP streams it observes.
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    Scapy is a powerful interactive packet manipulation program. It is able to forge or decode packets of a wide number of protocols, send them on the wire, capture them, match requests and replies, and much more.
  5. Native Cocoa app for capturing and analyzing packets. Similar to Wireshark, but with a native interface (and less features). If you don't like the X11 GTK Wireshark, this is your app.
  6. Colasoft network packet sniffer or network analyzer software for Windows platform, sniff packets, monitor activities and analyze protocols, best tool for network monitoring and troubleshooting, Free trial available, download now.
  7. Log all traffic on your network card. Analyze and parse network packets. Capture transmitted files and passwords.
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    tcpflow, a TCP Flow Recorder, is a program that captures data transmitted as part of TCP connections (flows), and stores the data in a way that is convenient for protocol analysis or debugging.
  8. EtherPEG is a free program for the Macintosh that shows you all the JPEGs (and GIFs) going by on your network.
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