Simple IP Calculator is a free browser add-on for Chrome that allows users to determine network details based on an IP address and a netmask or CIDR (Classless Inter-Domain Routing). Developed by Omar E. Ferrer, this tool is designed to assist network administrators and IT professionals in calculating network information quickly and accurately.

With Simple IP Calculator, users can input an IP address and specify the netmask or CIDR, and the tool will provide detailed information about the network, including the network address, broadcast address, host range, and the number of available hosts. This information is crucial for network troubleshooting, subnetting, and understanding network configurations.

The add-on is easy to use, with a simple and intuitive interface. It is a valuable tool for anyone working with IP addresses and network configurations, providing accurate and reliable information for network management and troubleshooting tasks.