NetOps Tools

Trusted network tools, ready when you need them.

Fast, browser-based utilities for anyone who touches networks. Pick a tool below and get straight to work.

Get the Windows app

Addressing

AddressingSubnet Calculator→Break a CIDR into network, broadcast, host range and mask — with a bit-level view.AddressingVLSM Planner→Carve a block into right-sized subnets, largest-first, no wasted space.AddressingIPv6 Tools→Expand, compress, and derive EUI-64 interface identifiers.

Layer 2

Layer 2MAC / OUI→Normalise a MAC, read its flags, and resolve the OUI vendor.

Live lookups

Live lookupsDNS Lookup→Resolve live records over DNS-over-HTTPS — A, AAAA, MX, TXT and more.

Reference

ReferencePort Reference→A searchable map of the ports you actually hit day to day.