System Operations Tools

Calculate detailed information about an IP address including binary representation, hexadecimal format, network specifications and more with our free IP calculator.

Calculate subnet information by dividing a network into smaller subnets based on required hosts or number of subnets with our free subnet calculator.

Convert a CIDR notation to an IP address range, displaying the start and end IP addresses with our free CIDR to range converter.

Convert an IP address range to one or more CIDR notations that cover the entire range with our free range to CIDR calculator.

Generate random or sequential MAC addresses with custom vendor prefixes and formatting options using our free MAC address generator.

Generate random IP addresses with options for specific IP classes, private ranges, or custom network blocks with our free IP generator.

Calculate and convert between symbolic and numeric file permissions for Unix/Linux systems using the chmod command format with our free calculator.

Convert MAC addresses to IPv6 link-local addresses using EUI-64 or modified EUI-64 formats with our free converter tool.

Extract the MAC address from an IPv6 link-local address that was created using EUI-64 or modified EUI-64 format.

Generate and validate cron expressions for scheduling tasks on Unix/Linux systems, with human-readable descriptions and next execution times.