Alternatives to Colasoft Capsa for all platforms with Free License

  • tcpdump

    tcpdump is a common packet analyzer that runs under the command line. It allows the user to intercept and display TCP/IP and other packets being transmitted or received...

    Free Open Source Mac OS X Windows Linux BSD

    tcpdump icon
  • Ettercap

    Ettercap is a suite for man in the middle attacks on LAN. It features sniffing of live connections, content filtering on the fly and many other interesting tricks. It...

    Free Open Source Mac Windows Linux

    Ettercap icon
  • Ethereal

    Ethereal® is used by network professionals around the world for troubleshooting, analysis, software and protocol development, and education. It has all of the...

    Free Open Source Windows Linux

    No features added Add a feature

    Ethereal icon
    • Discontinued
  • packeth

    packeth is GUI and CLI packet generator tool for ethernet. Primary it is developed and maintained for Linux, but some ports for Windows and MAC have also be done. It...

    Free Open Source Mac OS X Windows Linux

    No features added Add a feature

Platforms

Desktop

Show 2 less popular platforms