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IP Address Tools

See your public IPv4 and IPv6, validate any IP, and calculate a CIDR subnet: network, broadcast, host range and mask.

🌐 Your public IP is fetched from ipify only when you press the button — nothing else leaves your browserFree · No sign-up

Your public IP address

Asks ipify.org for the address your traffic comes from. No location lookup, nothing stored.

Inspect an IP address

CIDR / subnet calculator

How to use the IP tools

  1. Press Show my IP to see the public IPv4 and IPv6 address your traffic leaves from — useful for checking a VPN or proxy.
  2. Paste any address into the inspector to validate it, expand an IPv6 address, and see it as a decimal, hex and binary number.
  3. Type a network like 10.0.0.0/24 into the CIDR box to get the network and broadcast address, the usable host range, the host count and both masks.

FAQ

Why is there no map or city lookup?

On purpose. Geolocating an address means sending it to a third-party database, and the result is usually wrong by tens of kilometres anyway. Everything except the "show my IP" call runs offline in your browser.

Why does 10.0.0.0/24 have 254 usable hosts, not 256?

The first address in an IPv4 subnet is the network address and the last one is the broadcast address, so two of the 256 addresses cannot be given to a host. A /31 is the exception — it is used for point-to-point links where both addresses are usable.

Does my address get sent anywhere?

Only when you press Show my IP, and only to ipify.org, which answers with the address it sees. Validation, conversion and subnet maths never leave your device.

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