ip-address
Advanced tools
A library for parsing IPv4 and IPv6 IP addresses in node and the browser.
The ip-address npm package provides utilities for handling, validating, and manipulating IPv4 and IPv6 addresses in JavaScript. It's useful for applications that need to work with IP addresses, whether it's for networking, security, or data analysis purposes.
Parsing and validating IP addresses
This feature allows you to parse and validate IPv4 and IPv6 addresses. The example demonstrates how to create IPv4 and IPv6 objects from string representations of the addresses.
const {IPv4, IPv6} = require('ip-address');
let ipv4 = new IPv4('192.168.0.1');
let ipv6 = new IPv6('2001:0db8:85a3:0000:0000:8a2e:0370:7334');Checking if an IP address is in a subnet
This feature enables checking if an IP address belongs to a specific subnet. The code sample checks if the '192.168.1.1' address is within the '192.168.1.0/24' subnet.
const {IPv4} = require('ip-address');
let ipv4 = new IPv4('192.168.1.1');
console.log(ipv4.isInSubnet(new IPv4('192.168.1.0/24')));Converting IP addresses to binary representation
This feature allows converting IP addresses to their binary representation. The example converts the IPv4 address '192.168.1.1' to its binary form.
const {IPv4} = require('ip-address');
let ipv4 = new IPv4('192.168.1.1');
console.log(ipv4.binaryZeroPad());The 'ip' package provides basic utilities for IP address manipulation, including subnet calculations and IP version checking. It's simpler and has fewer features compared to 'ip-address', which offers more comprehensive IPv6 support and address parsing capabilities.
The 'cidr-js' package is focused on CIDR (Classless Inter-Domain Routing) block calculations, such as checking if an IP address is within a CIDR block. While it overlaps with some functionalities of 'ip-address', it doesn't provide as extensive support for individual IP address manipulations or validations.
ip-address is a library for validating and manipulating IPv4 and IPv6
addresses in JavaScript.
The dependency on jsbn was removed thanks to
michal-kocarek. Thanks Michal! For
clarity, all methods with BigInteger in the name were renamed to BigInt.
#fromBigInteger() → #fromBigInt(); now returns a native BigInt#bigInteger() → #bigInt(); now returns a native BigIntDocumentation is available at ip-address.js.org.
var Address6 = require('ip-address').Address6;
var address = new Address6('2001:0:ce49:7601:e866:efff:62c3:fffe');
var teredo = address.inspectTeredo();
teredo.client4; // '157.60.0.1'
Address6.fromURL(url)::ffff:192.168.0.1)FAQs
A library for parsing IPv4 and IPv6 IP addresses in node and the browser.
We found that ip-address demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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