from the official GitHub releases page or the project’s website. Whether you're troubleshooting a firewall, reverse-engineering a protocol, or teaching students the fundamentals of TCP/IP, this visual Swiss Army knife will become your new best friend. Have questions or want to contribute to the project? The Netcat GUI 1.3 source code is open-sourced under MIT license. Pull requests for new features are welcome.
Version 1.3 strikes the perfect balance: it is lightweight enough to run on a Raspberry Pi monitoring a sensor network, yet robust enough to be part of a professional penetration tester's toolkit on Windows. The new hex viewer and macro system alone justify the upgrade from any previous version. netcat gui 1.3
| Feature | Netcat GUI 1.2 | Netcat GUI 1.3 | | :--- | :--- | :--- | | | Fixed 4KB (often truncated logs) | Dynamic up to 64MB | | Reconnection Logic | Manual re-click | Auto-reconnect with exponential backoff | | Dark Mode | None | Full native dark/light theme toggle | | Payload Encoding | Plain text only | Base64, URL-encode, Hex (pre-send) | | Logging | Saves entire session only | Differential logging (save just send or receive) | Security Considerations When Using Netcat GUI 1.3 While the GUI simplifies operations, it inherits all the security risks of raw Netcat. Never run Netcat GUI 1.3 as root/Administrator unless absolutely necessary. Version 1.3 adds a "Sandbox Mode" (disabled by default) that restricts file system access and outbound connections to a whitelist. from the official GitHub releases page or the