IP2Location C library enables the user to find the country, region, city, coordinates, zip code, time zone, ISP, domain name, connection type, area code, weather station code, weather station name, mobile, usage types, etc that any IP address or hostname originates from.

Daily updated list of IP addresses / CIDR blocks used by data centers, cloud service providers, servers, etc.

A Bash shell-script wrapping the IP address information API of http://ipinfo.io

Unofficial client library for ipify: a simple IP address API

A simple tool to check whether a particular host is alive or not!

Find the fastest PIA server

Automatically update Cloudflare's IPs in your nginx configuration

checks an IP address for network availability and DNS PTR record

Taskbar IP widget for kali linux (or any distro running XFCE)

macOS CLI to print public & local IP and DNS information, geolocation, address, map links, and share the information via Messages or Mail

🏡 Print your public or private IP address

A set of Bash shell scripts to monitor and handle IP traffic on your webserver

Check if the IP addresses of your network have changed since the last run

Tools to setup a Jenkins node on a machine which has a dynamic IP

Update IP address records between nodes without using Dynamic DNS servers

WAN IPv4 checker & email notifier for computers behind dynamic IP/DHCP

Simple script to push your external ip (if modified) via pushbullet

☁ Route53 - Replace multiple IPs in multiple zones

I use these tools occasionally, and have posted these mainly for myself. If you are looking for something more specific, just ask.