netsniff-ng

5.6easy start · #26 of 33
in Network Packet Analyzer Software

Runs on Linux.

netsniff-ng is ranked #26 of 33 in network packet analyzer software on The Geeks Club. It runs on Linux. There is a free plan.

netsniff-ng plans and pricing

netsniff-ng toolkit Free Free, open-source toolkit under GNU GPL 2.0 github.com · 7 Oct 2026

Free plan: Yes
Live capture: Yes
Capture file formats: tcpdump-capable pcap; tcpdump-capable pcap with nanosecond resolution; Alexey Kuznetzov's pcap; netsniff-ng pcap

NETCAP 0 of 4 in the starter kit Lesson 17.8 Colasoft Capsa 0 of 4 in the starter kit Lesson 27.5 NetworkMiner 0 of 4 in the starter kit Lesson 37.2 PacketSafari 0 of 4 in the starter kit Lesson 47.1 Scapy 0 of 4 in the starter kit Lesson 57.1 Xplico 0 of 4 in the starter kit Lesson 67.1

Purpose: netsniff-ng is a free Linux network analyzer and networking toolkit for network development, debugging, analysis, auditing, and reconnaissance.
Packet capture: netsniff-ng captures, analyzes, replays, and redirects network traffic using zero-copy packet mechanisms.
Toolkit components: The toolkit includes netsniff-ng, trafgen, mausezahn, ifpps, curvetun, astraceroute, flowtop, and bpfc.
Filtering: netsniff-ng supports low-level and high-level packet filters, including Berkeley Packet Filter expressions.
Capture formats: It captures and reads pcap files that interoperate with other packet-analysis tools.
Protocol analysis: Its built-in dissector supports Ethernet, WLAN, ARP, MPLS, VLAN, LLDP, IPv4, IPv6, ICMP, IGMP, TCP, and UDP.
Experimental utilities: The project marks mausezahn and curvetun as experimental and advises against using them in production.
Platforms: The toolkit supports Linux operating systems with CONFIG_PACKET_MMAP enabled; its FAQ recommends a kernel version of 2.6.31 or newer.
License: The toolkit is open source under the GNU General Public License version 2.0.
Release verification: The project provides instructions for verifying releases using Git tags and GPG signatures.
Support: The project directs users to its mailing list and online FAQ for questions and feedback.
Limitations: The project says it provides no guarantee that its tools are free of bugs.
Price from: Free

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