Sniffnet vs TShark

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.

TShark is the Wireshark project's terminal-mode utility for capturing and analyzing network traffic. It can capture live packets or read saved captures, decode packet data for output, and write captures to a file. Its native capture format is pcapng, and it can read and write formats supported by Wireshark. Display filters use Wireshark syntax to select packets and protocol fields. Output formats include fields, JSON, PDML, and text; capture controls include interface selection, capture filters, packet limits, and ring-buffer files. TShark can write ElasticSearch mapping data or pipe packet output to another program or script. One constraint is that display filters are unavailable when capturing and saving packets with the -w option. The manual sets a 2 TB maximum capture-file size and notes potential issues above 2^32 packets. The Wireshark project is maintained by the Wireshark Foundation, a nonprofit supported by donations. TShark is free under GNU GPL version 2 and runs on Linux, macOS, and Windows.