Nmap - the Network Mapper. Github mirror of official SVN repository.
the TCPdump network dissector
the LIBpcap interface to various kernel packet capture mechanism
PcapPlusPlus is a multiplatform C++ library for capturing, parsing and crafting of network packets. It is designed to be efficient, powerful and easy to use. It provides C++ wrappers for the most popular packet processing engines such as libpcap, Npcap, WinPcap, DPDK, AF_XDP and PF_RING.
Enjoy games with your friends as if you were on a LAN.
High-level, multiplatform C++ network packet sniffing and crafting library.
A Java library for capturing, crafting, and sending packets.
A Rust library for constructing, sending, capturing, and decoding network packets
The best companion of kcptun
A network tool to control the bandwidth over your local network.
Native, local-first network intelligence for macOS—capture live traffic, inspect PCAP/PCAPNG files, and investigate sessions, protocols, processes, flows, and packet evidence.
Agent and LLM API performance monitoring via network packet probe. Measures performance of OpenClaw, Claude, Codex, DeepAgents and more — deployed on the provider side, no SDK changes required.
tcpslice concatenates multiple pcap files together, or extracts time slices from one or more pcap files.
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