IP address utility.
- Works in the browser and in Node.js without any polyfills. (A bundler like Webpack or Vite is recommended for the browser)
- IPv4 and IPv6 classes.
- Get IP address as BigInt, binary or string.
- Extract IPv4-mapped IPv6 addresses.
- Subnet class with methods to check IP membership, create netmask, list addresses, etc.
- Network class for working with multiple subnets.
- Written in TypeScript.
See the Documentation
npm install @cldn/ip
import {IPv4, IPv6, Subnet} from "@cldn/ip";
const ipv6 = IPv4.fromString("::ffff:192.168.1.42");
const ipv4 = ipv6.getMappedIPv4();
const subnet = Subnet.fromString("192.168.0.0/16");
subnet.has(ipv4); // true
Copyright © 2024 Cloudnode OÜ
This file is part of @cldn/ip.
@cldn/ip is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
@cldn/ip is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.