Sniffnet vs Termshark

Sniffnet is a free network monitoring app for Linux, macOS, and Windows. It displays overall internet traffic statistics and real-time charts, and can show which programs use bandwidth. Users can choose a network adapter, filter observed traffic, and import or export PCAP capture reports. Sniffnet identifies local network connections, shows remote hosts’ geographical locations, and finds host domain names and ASNs. It recognizes more than 6,000 upper-layer services, protocols, trojans, and worms. Users can configure notifications for network events and import custom IP blacklists to highlight potentially dangerous connections. The app supports live capture, display filters, protocol dissectors, and offline trace analysis; it reads PCAPNG and CAP files as well as PCAP. Custom themes and 26 languages are available. The listed Sniffnet plan is free and the software is open-source under MIT or Apache-2.0. A 2025 security audit reported one low-severity finding, which had been fixed. Most functionality uses offline databases, while reverse DNS lookups provide hostnames for IP addresses.

Termshark is a terminal interface for tshark, inspired by Wireshark, for inspecting saved packet captures and live network traffic. It can read pcap files and sniff live interfaces when tshark permits, then apply Wireshark display filters to either. Users can inspect and reassemble TCP and UDP flows, search packets, copy packet ranges, and view conversations involving Ethernet, IPv4, IPv6, UDP, and TCP. Version 2.4 added packet search and profiles for colors and columns. It supports 16-color, 256-color, and truecolor terminal modes. The project lists Linux, macOS, BSD variants, Android through Termux, and Windows, with precompiled executables available through GitHub releases. Termshark is aimed at remote debugging where a large capture can be examined on the remote machine rather than copied to a desktop. It is free and MIT licensed. Packet analysis requires tshark 1.10.2 or newer in PATH; the project notes that tshark has features Termshark does not expose.