Npcap is the Nmap Project's packet capture (and sending) library for Microsoft Windows. It implements the open Pcap API using a custom Windows kernel driver alongside our Windows …

Npcap is a packet capture and injection library for Windows by the Nmap Project. It is a complete update to the unmaintained WinPcap project with improved speed, reliability, and security. The …

Apr 23, 2025 · Npcap is distributed as a signed executable installer that can be run in both graphical and silent modes.

Sep 1, 2017 · Nmap ("Network Mapper") is a free and open source utility for network discovery and security auditing. Many systems and network administrators also find it useful for tasks …

Fortunately, the Nmap Project stepped up and created Npcap, converting the original WinPcap code to the new NDIS 6 API, giving users a fast and completely compatible alternative to …

Nov 18, 2025 · Our code signing key has been reissued to "Nmap Software LLC" replacing the old "Insecure.Com LLC" subject name. Improve performance of the driver by reducing lock …

Oct 20, 2020 · On Windows Download Npcap installer from https://nmap.org/npcap. Install Npcap in "Winpcap Compatible Mode"

Apr 23, 2025 · Npcap optimizes filter execution using a just-in-time (JIT) compiler that converts the BPF bytecode into native x86/x64 instructions for faster filtering. Npcap supports capturing …

Packets are read with pcap_dispatch () or pcap_loop (), which process one or more packets, calling a callback routine for each packet, or with pcap_next () or pcap_next_ex (), which …

Sep 26, 2025 · Npcap is the Nmap Project's packet capture (and sending) library for Microsoft Windows. It implements the open Pcap API using a custom Windows kernel driver alongside a …