Free online tools for network engineers and IT professionals.
Available Tools
Explore our collection of network engineering calculators and utilities.
IPv4 Subnet Calculator
IPv4 Subnet Calculator
Calculate IPv4 network addresses, subnet masks, broadcast addresses and usable host ranges. Supports CIDR notation and subnet analysis.
IPv6 Subnet Calculator
IPv6 subnet Calculator
Analyze IPv6 addresses and prefixes, calculate network ranges and explore IPv6 subnet allocation.
