Random IP generator

Generate random IPv4 and IPv6 addresses for testing, labs, mock data and docs. Public IPv4 skips every private and reserved block. It all runs in your browser — nothing is sent anywhere.

What each type is good for

• Public IPv4 — routable internet addresses with 10/8, 172.16/12, 192.168/16, 127/8, 169.254/16, 0/8, multicast (224/4) and reserved (240/4) excluded.
• Private IPv4 — RFC 1918 space (10.x, 172.16–31.x, 192.168.x) for LAN labs and firewall-rule samples.
• IPv6 — global-unicast addresses in the 2000::/3 range, fully hextet-formatted.

These are randomly generated for testing and documentation. A real, in-use address may land here by chance — don't treat any output as unassigned.

FAQ

Are the public IPv4 addresses really public?
Yes. Public IPv4 generation skips every private and reserved block (10/8, 172.16/12, 192.168/16, 127/8, 169.254/16, 0/8, multicast and reserved), so you only get routable internet addresses.

Can I generate private IPv4 or IPv6 addresses too?
Yes. There are separate buttons for RFC 1918 private IPv4 (10.x, 172.16-31.x, 192.168.x) and for global-unicast IPv6 in the 2000::/3 range. You can make 1, 5, 10 or 25 at a time and copy them with one click.

Are these addresses safe to use in tests and docs?
They're meant for testing, labs, mock data and documentation. Because they're random, a real in-use address can land here by chance, so don't treat any output as guaranteed unassigned.

Is this free and private?
Yes. It's free, needs no sign-up, and runs entirely in your browser. The addresses are generated locally and nothing is sent anywhere or stored.

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