ip2d

ip2d is a lightweight JavaScript library designed to convert IP addresses (both IPv4 and IPv6) and their numeric equivalents. It offers zero-cost conversions between IP address formats, making it ideal for performance-sensitive applications.

Features

Convert IPv4 to Decimal
Convert Decimal to IPv4
Convert IPv6 to BigInt
Convert BigInt to IPv6

Installation

Install via npm:

npm install ip2d

Usage Examples

Basic IPv4 to Decimal Conversion

Convert an IPv4 address to its decimal form:

const { fromIPv4 } = require("ip2d");

console.log(fromIPv4("127.0.0.1")); // Output: 2130706433

Basic Decimal to IPv4 Conversion

Convert a decimal number back to an IPv4 address:

const { toIPv4 } = require("ip2d");

console.log(toIPv4(2130706433)); // Output: "127.0.0.1"

IPv6 to BigInt Conversion

Convert an IPv6 address string into a BigInt:

import { fromIPv6 } from "ip2d";

const bigIntValue = fromIPv6("2001:0db8:85a3:0000:0000:8a2e:0370:7334");

console.log(bigIntValue);  // Output: A BigInt representation of the IPv6 address

BigInt to IPv6 Conversion

Convert a BigInt back into an IPv6 address string:

import { toIPv6 } from "ip2d";

const ipv6Address = toIPv6(BigInt("42540766411282592856906245548098208148"));

console.log(ipv6Address);  // Output: "2001:db8:85a3::8a2e:370:7334"

Security Considerations

The repository includes a SECURITY.md file for reporting vulnerabilities. The project also integrates with Snyk for checking known vulnerabilities in dependencies.

License

This library is licensed under the MIT License, allowing you to use, modify, and distribute the code with minimal restrictions.

You can view the full license here.

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