Application to comfortably monitor your Internet traffic
A full packet capturing, indexing, and database system
Scapy is a Python-based interactive packet manipulation program
A Swiss army knife for your daily Linux network plumbing
WinDivert: Windows Packet Divert
A Network Packet Sniffing tool developed in Python 3
Distributed tcpdump for cloud native environments
A network tool to control the bandwidth over your local network
An open source real-time network topology and protocols analyzer
Package xdp allows one to use XDP sockets
A minimal .NET binding over WinDivert
A cross platform http sniffer with a web UI
Bluetooth Low Energy (BLE) packet sniffer and transmitter
...has moved to packetpeeper.org