generate-ip is a lightweight, easy-to-use library that allows you to randomly generate, format & validate IP address(es).

• No external dependencies — Only built-in crypto methods used for secure randomization
• Multi-protocol support — IPv4 + IPv6 + MAC addresses supported
• Multi-environment support — Use in Node.js or the web browser
• Command line usable — Just type generate-ip, that's it

As a global utility:

$ npm install -g generate-ip

As a dev dependency, from your project root:

$ npm install -D generate-ip

As a runtime dependency, from your project root:

$ npm install generate-ip

import { ipv4, ipv6, mac } from 'generate-ip';

const { ipv4, ipv6, mac } = require('generate-ip');

<script src="https://cdn.jsdelivr.net/npm/generate-ip@2.3.1/dist/generate-ip.min.js"></script>

(async () => {
    await import('https://cdn.jsdelivr.net/npm/generate-ip@2.3.1/dist/generate-ip.min.js');
    // Your code here...
})();

...
// @require https://cdn.jsdelivr.net/npm/generate-ip@2.3.1/dist/generate-ip.min.js
// ==/UserScript==

// Your code here...

📝 Note: To always import the latest version (not recommended in production!) remove the @2.3.1 version tag from the jsDelivr URL: https://cdn.jsdelivr.net/npm/generate-ip/dist/generate-ip.min.js

💡 Use the ipv4 methods to generate and validate IPv4 addresses.

Generates one IPv4 address if qty option is not given, returning a string:

const ip = ipv4.generate();
console.log(ip); // sample output: '36.42.224.208'

...or multiple IPv4 addresses if qty option is given, returning an array of strings:

const ips = ipv4.generate({ qty: 3 });
console.log(ips);

/* sample output:

ipv4.generate() » Generating IPv4 addresses...
ipv4.generate() » IPv4 addresses generated!
ipv4.generate() » 194.84.176.172, 192.186.53.120, 50.191.111.87
[ '194.84.176.172', '192.186.53.120', '50.191.111.87' ]
*/

Available options:

Checks if given address is a valid IPv4 address:

const ipIsValid = ipv4.validate('36.42.224.208');
console.log(ipIsValid);

/* outputs:

ipv4.validate() » Validating 36.42.224.208...
ipv4.validate() » IP is valid IPv4 address!
true
*/

Available options (passed as object properties):

💡 Use the ipv6 methods to generate, format, and validate IPv6 addresses.

Generates one IPv6 address if qty option is not given, returning a string:

const ip = ipv6.generate();
console.log(ip); // sample output: '1379:6748:810c:5e16:b6c9:ae2:939f:8f2a'

...or multiple IPv6 addresses if qty option is given, returning an array of strings:

const ips = ipv4.generate({ qty: 5 });
console.log(ips);

/* sample output:

ipv6.generate() » Generating IPv6 addresses...
ipv6.generate() » IPv6 addresses generated!
ipv6.generate() » 8218:19b9:7709:4282:65e1:7ee:319e:32ef, e940:754d:ae46:ae18:94dd:b43c:583:68c2, b570:b4f8:68f:62e2:99cb:ad0f:6237:9d51, 98a7:f4e5:2f4e:8a2d:56bb:dc28:f94a:46a8, ca59:590a:9b6c:ea25:94fa:37d6:9bac:7ff6
[
  '8218:19b9:7709:4282:65e1:7ee:319e:32ef',
  'e940:754d:ae46:ae18:94dd:b43c:583:68c2',
  'b570:b4f8:68f:62e2:99cb:ad0f:6237:9d51',
  '98a7:f4e5:2f4e:8a2d:56bb:dc28:f94a:46a8',
  'ca59:590a:9b6c:ea25:94fa:37d6:9bac:7ff6'
]
*/

Available options:

Formats an IPv6 address according to options passed, returning a string:

const ipv6address = '0d::ffff:192.1.56.10/96',
      formattedAddress = ipv6.format(ipv6address, { leadingZeros: true, doubleColon: false });

console.log(formattedAddress);

/* outputs:

ipv6.format() » Expanding '::' into zero series...
ipv6.format() » Adding leading zeros...
ipv6.format() » IP formatted successfully!
ipv6.format() » 000d:0000:0000:0000:0000:0000:ffff:192.1.56.10/96
'000d:0000:0000:0000:0000:0000:ffff:192.1.56.10/96'
*/

Available options:

Checks if given address is a valid IPv6 address:

const ipIsValid = ipv6.validate('0:0:0:0:0:ffff:192.1.56.10/96');
console.log(ipIsValid);

/* outputs:

ipv6.validate() » Validating 0:0:0:0:0:ffff:192.1.56.10/96...
ipv6.validate() » IP is valid IPv6 address!
true
*/

Available options (passed as object properties):

💡 Use the mac methods to generate and validate MAC addresses.

Generates one MAC address if qty option is not given, returning a string:

const macAddress = mac.generate();
console.log(macAddress); // sample output: '1d:3a:af:21:b1:8c'

...or multiple MAC addresses if qty option is given, returning an array of strings:

const macAddresses = mac.generate({ qty: 2 });
console.log(macAddresses);

/* sample output:

mac.generate() » Generating MAC addresses...
mac.generate() » MAC addresses generated!
mac.generate() » 1d:3a:af:21:b1:8c, af:fb:6f:b6:1b:8a
[ '1d:3a:af:21:b1:8c', 'af:fb:6f:b6:1b:8a' ]
*/

Available options:

Checks if given address is a valid MAC address:

const addressIsValid = mac.validate('1d:3a:af:21:b1:8c');
console.log(addressIsValid);

/* outputs:

mac.validate() » Validating 1d:3a:af:21:b1:8c...
mac.validate() » Address is valid MAC address!
true
*/

Available options (passed as object properties):

When installed globally, generate-ip can also be used from the command line. The basic command is:

$ generate-ip

Sample output:

📝 Note: To generate multiple IP addresses, pass --qty=n where n is the number of IPs to generate.

Parameter options:
 --qty=n                     Generate n IP address(es).

Boolean options:
 -q, --quiet                 Suppress all logging except errors.

Info commands:
 -h, --help                  Display help screen.
 -v, --version               Show version number.

Copyright © 2024 Adam Lui & contributors.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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