NetoStack

Calculate subnet information, network addresses, broadcast addresses, and host ranges with visual network analysis

Calculate IPv6 subnets with 128-bit addressing and modern network prefix planning

Variable Length Subnet Mask calculator to break networks into multiple smaller subnets with optimal allocation

Aggregate multiple networks into supernets for route summarization and efficient routing table management

Design VLSM networks with drag-and-drop subnet planning and optimize address allocation strategies

Convert CIDR notation (e.g. /24) to subnet mask format (255.255.255.0)

Convert subnet mask format (255.255.255.0) to CIDR notation (/24)

Optimize mixed IP addresses, CIDR blocks, and ranges into minimal CIDR prefixes

Split a network into N equal child subnets or to a target prefix length

Find available subnets from pools minus allocations with first-fit or best-fit policies

List all free blocks in pool CIDRs minus allocations, filterable by target prefix length

Decompose CIDR blocks and ranges into uniform target prefix subnets (e.g., break into /24s)