CIDR Calculator and Subnetting Visualizer

💻 a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript

🌐 Enhanced IP address querying with WebRTC

🌍 Easy to use WHOIS info for domains, TLDs and IPs

IP/IPv6 to region on Node.js （IP/IPv6 地址到区域运营商）

[WIP] Awesome utilities for working with network on Linux

Get ip location information.

A concise decorator for retrieving an IP address from http request with Nest.js controller method.

Typescript/Javascript bindings for ipquery.io | A free and performant ip address API

Check if a string is an IP address in CIDR notation

presian_util

An RTL-to-Chip Silicon Design Solution.

Regular expression for matching IP addresses in CIDR notation

Get detailed information about the incoming request based on the IP address.

🌎 A very "simple" web server that returns your IP address in plaintext...and literally nothing else.

A client side "AllowedIPs" calculator. This can also be used as a generic tool to exclude a subset of CIDR's from a larger scoped CIDR.

A Node.js package for handling request details in Express applications, extracting information such as user's IP, OS, browser, device, and CPU from user agent string in HTTP request headers

Node module to see whether an IPv4 or IPv6 address matches an IP (range) or subnetwork

Official Javascript Client for Ipregistry: a Non-Intrusive Solution for IP Geolocation and Threat Data.

RFC-3986 URI toolkit for Node.js. IDN (RFC-3987), IPv6 zone identifiers (RFC 6874), Sitemap protocol. Zero dependencies.