Operations 6 min read

Sniffnet: Free Rust‑Based Real‑Time Network Monitor

Sniffnet is a free, Rust‑written network monitoring application that offers real‑time traffic visualization, precise IP and geographic identification, protocol analysis, customizable themes, and exportable PCAP capture files, with step‑by‑step installation guides for Windows, macOS, and Linux, plus optional Npcap support.

Deepin Linux

Oct 27, 2025

Sniffnet: Free Rust‑Based Real‑Time Network Monitor

Sniffnet is a network monitoring tool designed to help users easily track their internet traffic.

It provides real‑time traffic charts, IP geolocation, protocol identification (over 6000 protocols), malware detection, PCAP export, customizable themes, host shortcuts, and notification settings.

Installation

Download the installer from the official website: https://sniffnet.net/ Sniffnet offers Windows, macOS, and Linux versions. For Windows, run the downloaded installer. For Linux, install via the package manager: sudo apt install sniffnet # Debian/Ubuntu Npcap is required for packet capture on Windows; download it from:

https://npcap.com/

Launching Sniffnet

Open Sniffnet, select a network adapter, and click “Start” to begin monitoring.

Main Interface

The main window has three tabs:

Overview – shows summary of adapter, speed, hosts, services.

Inspect – detailed view of a selected connection.

Notifications – displays configured alerts.

Host View

The Host tab lists all current connections with country, domain, and traffic information. Clicking a connection opens the Inspect tab with source/destination IPs, ports, protocol, and traffic details.

Settings

In Settings you can switch the language to Chinese, choose a theme, customize notifications, and adjust the UI scale.

Exporting Capture Files

Sniffnet can export captured traffic as a PCAP file. Use the “Export Capture File” option, specify a filename and directory, then open the resulting sniffnet.pcap with Wireshark or another analyzer.