"Access Denied" when opening a port below 1024 on Linux. Solution: You must run the GUI with sudo . Alternatively, use ports above 1024 (e.g., 8080, 4444) for standard user mode.
| Feature | Netcat GUI v13 | Traditional Netcat | Ncat (Nmap) | | :--- | :--- | :--- | :--- | | | Yes (Full GUI) | No (CLI only) | No (CLI only) | | Session Persistence | Visual session trees | Manual scripting | Built-in but text-based | | Hex Dump Viewer | Integrated click-to-view | Requires xxd pipe | Requires -o flag | | Exclusive Payload Builder | Yes (v13 only) | No | No | | Cross-Platform UI | Native (Avalonia UI) | No | No | netcat gui v13 download exclusive
Antivirus flags Netcat GUI v13 as a HackTool. Explanation: This is a false positive. Netcat is classified as a dual-use tool. To use it, add an exclusion to Windows Defender or your enterprise AV before running the exclusive download. Netcat GUI v13 vs. Competitors Why hunt for this specific version when Ncat or Powercat exist? "Access Denied" when opening a port below 1024 on Linux