Netcat (nc) is a computer networking utility for reading from and writing to network connections using TCP or UDP. Netcat is designed to be a dependable back-end that can be used directly or easily driven by other programs and scripts. Developed by GNU
License: Open Source
Netcat is a versatile networking utility mainly used for creating and managing network connections, while Ettercap is a comprehensive network analysis tool that specializes in man-in-the-middle attacks and network traffic manipulation. Netcat is lightweight and command-line based, whereas Ettercap offers a more powerful GUI and advanced features for network analysis.