Npcap is the packet capture library for Windows 10 and 11. Fast, secure, and compatible successor to WinPcap. Free to use.

A manual and guide to Npcap, a packet capture and network analysis framework for Windows, for users and software developers. Npcap is a modern, safe, and compatible update to WinPcap.

Npcap is WinPcap for modern Windows systems Built on the tried-and-true WinPcap codebase, with a host of exciting new features, and extensively tested with currently-supported versions of Windows, …

Jan 7, 2026 · Npcap release archive The latest Npcap release is version 1.86. Npcap 1.86 installer for Windows 7/2008R2, 8/2012, 8.1/2012R2, 10/2016, 2019, and 11 (x86, x64, and ARM64). Npcap …

The Users' Guide covers the basics of installing and removing Npcap, interactions with WinPcap, frequently asked questions, and how to report bugs.

Mar 8, 2013 · Npcap is the exciting and feature-packed update to the venerable WinPcap packet capture library. Building on the successful WinPcap legacy, Npcap brings increased speed, security, and …

Npcap OEM Is your organization looking to do more with Npcap? Npcap OEM licenses give you more installs, redistribution rights, commercial support, and pro-level features like silent installation. More …

Writing software that captures or injects network traffic is easy with Npcap. This guide describes the Npcap SDK, WinPcap compatibility, and the Npcap API.

A step-by-step guide to writing software that uses Npcap to list network adapters, capture packets, and send network traffic.

Npcap OEM internal-use license allows companies to install the Npcap packet capturing library for Windows on more than 5 systems.