An IP address is an identifier for devices on a TCP/IP network, Every device that connects to the Internet has its own Internet Protocol (IP) address. IP addresses make it possible, among other things, for computers from different networks to find each other. IP addresses are vital for all Internet-based activities, and yet it’s not uncommon that a user doesn’t know his computer’s IP. IP addresses are one of the most critical resources that need to be managed in any network . All IPv4 IP addresses can be divided into two major groups , External and local IP addresses both serve the same purpose, the difference is scope.

1. External (Public) IP Address : Global, or public, or external this group can also be called ‘WAN addresses’. An external or public IP address is used across the entire Internet to locate computer systems and devices. Your Internet Service Provider (ISP) assigns you an external IP address when you connect to the Internet. When your web browser requests a webpage, it sends this IP address along with it. Your ISP uses this to know which of its customers are requesting which webpage.

2. Local (Internal) IP Address : Private, or local, or internal addresses, those that are used in the local network (LAN).A local or internal IP address is used inside a private network to locate the computers and devices connected to it. If your computer is connected to a router with default settings, that router will automatically assign a local IP address to your computer. Your local IP address is hidden from the outside world and used only inside your private network. You generally don’t need to know much about it unless you’re trying to set up a game or web server.

Addresses in IPv4 are 32-bits long. This allows for a maximum of 4,294,967,296 (2^32) unique addresses. Addresses in IPv6 are 128-bits, which allows for 3.4 x 10^38 (2^128) unique addresses.

What is New (Friday, April 18, 2025)

1.[ADDED] – function to run in the system tray.
2.[ADDED] – Ability to run programs or commands when IP changes.
3.[ADDED] – User can specify web page from which IP address is obtained.
4.[ADDED] – x64 version.
5.[ADDED] – Some minor new features and coding improvements.

How to Find your External IP address

Copy IP is a Portable freeware. When you run the software, it places the icon in the system tray. If you hover your mouse over the “Copy Public IP” icon in the system tray, your IP address will appear. By double-clicking the software icon, your IP address is copied to the clipboard.

If you click on the Copy Public IP icon with the right mouse button, a menu will be opened.

By clicking on the Options section, you can have the software start automatically when Windows starts, or you can have it notify you when your IP address changes (below).

Or write your new ip to the log file,  you can even run a software when your IP changes. At the bottom of the Options menu, you can change the website address that the software uses to determine your IP address.

Copy Public IP Application has Cmd parameter support.

With your suggestions, we can add more features and develop it further.

Supported operating systems: Windows 11 , Windows 10 , Windows 8.1 , Windows 8 , Windows 7 , Windows Vista , Windows Xp – (x86 & x64)

File: CopyIP_x64.exe │ Virustotal
MD5: f3340ec5394bd1c07043f89c7ffaa629
SHA1: 733bfc686a68e217b8cdeac7d542aed4beef7df6

File: CopyIP.exe │ Virustotal
MD5: 24116c93f7239a8526eebeba6e25d1f7
SHA1: d372290ff452f887c7dd50aa6275e76753636d83