WinPcap isn't supported on Windows 10

For 14 years, WinPcap was the standard libpcap package for Windows. But whenWindows 10 was released without NDIS 5 support,WinPcap failed to keep up,leaving users wondering what to do. Fortunately,the Nmap Project stepped upand created Npcap, converting the original WinPcap code to the new NDIS 6 API, giving users a fastand completely compatible alternative to WinPcap for Windows 10.

Windows 10 1607 also introduced strict driver-signing requirements that WinPcapcan't meet.Npcap is fully compliant, with its drivers tested and co-signed byMicrosoft.

Npcap runs great on Windows 11. Npcap is under active development and continues to support the latest Windows networking features.

Npcapis WinPcap for modern Windows systems

Built on the tried-and-true WinPcap codebase, with a host of exciting newfeatures, and extensively tested with currently-supported versions of Windows,Npcap is the future of WinPcap. Ready to give Npcap a try? Justdownload the latest installer. Npcap works greatwithWireshark,Nmap, and more of your favorite tools already. For softwarethat's written with WinPcap in mind, simply select "WinPcap API-compatiblemode" at installation.

Need more information? Check out ourWinPcapfeature comparison, read through theNpcap UsersGuide, or justtry it for free. If you want to distribute Npcap withyour software or install it on more than 5 systems, check outNpcap OEM.