ipaddr.js
A library for manipulating IPv4 and IPv6 addresses in JavaScript.
ip-regex
Regular expression for matching IP addresses (IPv4 & IPv6)
ip-geolocation-api-javascript-sdk
[Javascript SDK for IP Geolocation API](https://ipgeolocation.io/documentation/ip-geolocation-api-javascript-sdk-201809051421). You can use this SDK to Geolocate an IP address and get time zone information based on geolocation coordinates, or an IP addres