About Random IP Address
Random IP Address generates addresses in the familiar four-octet form, suitable for populating a log sample, a test fixture or a configuration file with plausible-looking entries. Each address is drawn independently, so a batch contains genuine variety rather than a walk through a single range.
The first and last octets are drawn from one to two hundred and fifty-four rather than from zero to two hundred and fifty-five, which avoids the addresses conventionally reserved for network and broadcast use. That is what makes the output look like an ordinary host address instead of an obviously synthetic one.
The generator does not know about the reserved blocks, however, so its output can and will land in ranges that are private, documentation-only or otherwise special-purpose. That makes the values fine as sample data and unsuitable as anything operational: never assign a generated address to a real device, because it may coincide with one already on your network or with an address that has a specific meaning.
How to use Random IP Address
- 1 Set how many IPv4 addresses you need.
- 2 Copy the list, one dotted-quad address per line.
- 3 Replace any that fall in a reserved range if the sample has to avoid them.
Frequently asked questions
Will the addresses be routable?
Not necessarily, and it does not matter for sample data. The generator avoids nothing, so results can land in private ranges, documentation ranges and multicast blocks. Nothing here should be assigned to a real interface.
Why do the first and last octets skip zero and 255?
Because those values are conventionally reserved for the network address and the broadcast address of a subnet. Excluding them produces addresses that look like ordinary hosts, which is what makes the sample data plausible.
Can it generate IPv6 addresses?
Not here — this tool covers the four-octet form. IPv6 addresses have a different structure and a much larger space, and the generator for that format is separate.
Free, online, and private
Free to use
Random IP Address is completely free. There is no account to create, no login, and no hidden charge or usage limit.
Runs online in your browser
It is a free online tool that runs entirely in your browser. Nothing to download or install — open the page and start using it right away.
Your data stays private
All processing happens locally on your device. Your input is never uploaded, stored, or tracked, so it never leaves your browser.
How Random IP Address behaves in detail
These are the specifics of this implementation — the exact ranges, defaults and fixed settings you are working with.
| Parameter | Value |
|---|---|
| Output shape | four decimal octets joined by dots — dotted-quad IPv4 only |
| Octet values | first and last drawn from 1 to 254; the two middle ones from 0 to 255 |
| Draw method | four independent randInt calls, all off Math.random() |
| Batch output | 1 to 100 addresses, default 10, one per line |
Compiled from the implementation of this tool and checked against it by itoolnet.
What Random IP Address does not do
Knowing the edges of a tool saves more time than another list of its features. These are the cases where it will not do what you might expect.
- Only the first and last octets skip 0 and 255. The middle two are drawn across the full 0–255, so loopback-style 127.x.x.x, link-local 169.254.x.x, private 10.x.x.x and 192.168.x.x, and multicast 224–254 ranges all appear.
- Nothing lets you pin the network. There is no subnet, mask, CIDR or base-address input, so you cannot ask for addresses inside 10.0.0.0/8 — the batch has to be filtered somewhere else.
- IPv6 is a different tool entirely. This generator emits dotted-quad IPv4 with no compression, no expanded eight-group form and no mixed notation.
Tested and documented by itoolnet, the team that builds and maintains this site.