My IP Checker
Check your public IP address instantly. Free, client-side IP lookup using a third-party API. No sign-up, no data sent to our servers.
Checking your IP...
This may take a few seconds.
How it works
This service uses the ipify API. When you open or refresh this page, your browser sends a request to that API; the result is displayed here.
Your IP is not sent to or collected by us. The request goes only between your browser and the ipify service.
What is an IP address?
The internet’s “return address” for your connection
An IP (Internet Protocol) address is a unique label assigned to a device on a network. Just like a street address tells the postal service where to deliver a letter, an IP address tells the internet where to send data—and where replies should go. Without it, servers would not know where to send the web page you requested, and your video call would have nowhere to land.
Quick analogy
Your public IP is like the address on an envelope. The whole internet sees this “building” (your router); inside, your router uses private addresses to deliver to the right “room” (your phone, laptop, etc.).
When you visit a website, your browser sends a request that includes your IP. The server uses it to send the page back to you. Streaming, gaming, and video calls all rely on this: two-way traffic needs both sides to know each other’s “address.”
IPv4
The classic format: four numbers from 0 to 255, e.g. 203.0.113.42. About 4.3 billion possible addresses—and we’ve run low, so the world is shifting to IPv6.
Still the most common for home and office connections.
IPv6
The next generation: longer, hexadecimal notation, e.g. 2001:0db8:85a3::8a2e:0370:7334. Enough addresses for every device on Earth many times over.
Gradually replacing IPv4 on modern networks and services.
Public vs private IP
What the rest of the internet sees (your router). This tool shows this one.
Used only inside your home or office (e.g. 192.168.x.x). Not visible to websites.
So when you “check my IP,” you’re seeing the address that websites and services use to reach you—and that can change when you switch networks (e.g. from Wi‑Fi to mobile) or when your ISP reassigns it. It’s useful for debugging, VPN checks, and understanding how the internet sees your connection.