| Wireshark | Network protocol analyzer with a rich and powerful feature set |
| IPTraf-ng | Feature-laden network statistic monitoring tool |
| Ettercap | Comprehensive suite for man in the middle attacks |
| Kismet | Wireless network and device detector, sniffer, wardriving tool, WIDS framework |
| netsniff-ng | Swiss army knife for daily Linux network plumbing |
| darkstat | Captures network traffic, calculates usage statistics, and serves reports over HTTP |
| EtherApe | Graphical network monitor |
| justniffer | Network TCP packet sniffer with reliable TCP flow rebuilding |
| tcpflow | TCP/IP packet demultiplexer |
| tcpdump | Powerful and hugely respected command-line packet analyzer |
| sniffglue | Packet sniffer written in Rust |
| sniffer | Alternative network traffic sniffer |
| dsniff | Collection of tools for network auditing and penetration testing |
| ngrep | grep applied to the network layer |
| sniffit | CORBA based sniffer system with ncurses interactive mode |
| Jomon | Network forensics and sniffer tool |
