Subnet Vault

Subnet Vault: Your Complete Network Toolkit

Calculate subnets, troubleshoot networks, and master IP addressing—all in one app. Built for IT professionals, network administrators, and students.

Subnet Calculators

IPv4 Calculator — Network address, broadcast, usable hosts, wildcard mask. Enter CIDR or subnet mask.
IPv6 Calculator — Full IPv6 subnet details with prefix handling.
VLSM Calculator — Optimize IP allocation with variable-length subnets. Add networks by host count or CIDR.
Network Tools

Ping — Test host reachability with response times and statistics.
WHOIS Lookup — Query domain registration and ownership details.
DNS Lookup — Resolve hostnames and view DNS records.
Wake-on-LAN — Remotely wake devices on your network.
Port Scanner — Check open ports on any host.
IP Geolocation — Find the geographic location of IP addresses.
Traceroute — Map the path packets take to a destination.
Network Discovery — Find devices and services on your local network.
Learn

Networking glossary with clear definitions
Subnetting tutorial for beginners
IPv4 reference tables and binary conversion guides
iCloud Sync

Save calculations and access them across all your Apple devices. Your data stays private—nothing leaves your device unless you share it.

Who It's For

IT Professionals — Design and validate network configurations quickly.
Students — Learn subnetting with hands-on tools.
Network Admins — Troubleshoot and manage IP allocations efficiently.
Download Subnet Vault and simplify your networking workflow.