Read the GNU GPL summary (optional) and click on the “Install Npcap” prompt if you already have it, or “I Agree” to continue.
| Problem | Solution | |---------|----------| | Download slow | Use a different mirror on the official site | | Antivirus blocks installer | Wireshark is safe; add an exception or temporarily disable AV (false positives happen due to Npcap's low-level access) | | "Npcap installation failed" | Reboot, then run the Wireshark installer again and choose "Repair" or manually download Npcap from npcap.com | | No network interfaces listed | Run as Administrator (Windows) or check your user group (Linux) | download wireshark free
No other free tool gives you such intimate visibility into the dark matter of the internet—network packets. Whether you are diagnosing a slow Wi-Fi connection, verifying if a program is “phoning home,” or studying for the Wireshark Certified Network Analyst (WCNA) exam, the journey starts with one click. Read the GNU GPL summary (optional) and click
Npcap driver not installed properly. Fix: Re-run the installer, select “Repair” or reinstall Npcap manually from npcap.com . Reboot your PC. Npcap driver not installed properly
If you have landed on this page searching for “download Wireshark free,” you are in the right place. This guide will not only show you where to get the legitimate, safe version of Wireshark but also explain why it remains the gold standard for packet sniffing, how to install it, and the basics of using it without putting your privacy at risk.