Npcap is a free Windows library and driver for fast, secure packet capture, letting you monitor and analyze network traffic on Windows 10 and 11.
Capture and analyze network traffic on Windows
Npcap is a Windows library and driver that lets you capture and analyze network packets on Windows 10, 11, and several server versions. It's designed as a modern, secure, and compatible replacement for WinPcap, making it a valuable tool for network monitoring and troubleshooting.
You can use Npcap with popular tools like Wireshark and Nmap to inspect network traffic in detail. Whether you're a developer, IT professional, or security researcher, Npcap helps you dig deeper into your network's data flows. The site provides downloads, documentation, and support resources to get you started quickly.
Npcap stands out for its compatibility with the latest Windows versions, improved performance, and ongoing support. It's free to use and widely trusted for network diagnostics, security testing, and custom network tool development.
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