gyulyvgc/sniffnet

Sniffnet is a desktop application that lets you monitor all the network traffic flowing in and out of your computer in real time, presented in a readable, graphical interface. The problem it addresses is that understanding your device's network activity normally requires complex command-line tools that are difficult for non-experts to read. Sniffnet makes the same information approachable: you can see at a glance which services your computer is talking to, where in the world those servers are located, how much data is being transferred, and which applications are responsible. It works by reading packets directly from one of your computer's network adapters, the hardware component that connects you to a network. You choose an adapter, optionally apply filters (for example, only show traffic on certain ports or protocols), and the app displays live charts of traffic volume alongside a detailed list of active connections. Each connection entry shows the remote host's domain name, its country, its ASN (the organization that owns that IP address range), and the amount of data exchanged. You can export full capture reports as PCAP files (a standard format for network captures) for later analysis in other tools. The app also supports custom visual themes. You would use Sniffnet if you want to understand what your computer is doing on the network without being a networking expert, checking whether an app is phoning home unexpectedly, monitoring bandwidth usage per connection, or simply satisfying curiosity about network activity. It runs on Windows, macOS, and Linux. The application is written in Rust and uses the Iced GUI framework. Pre-built installers are available for all three platforms.