IP & Subnet Tools
Public or Private IP Checker
Enter an IPv4 address to find out if it's public or in a reserved/private range.
📖 New to this? Read Public vs. Private IP Addresses Explained.
Example
10.24.5.9 is Private (RFC 1918); 8.8.8.8 is Public.
❓ Frequently Asked Questions
What is the Public or Private IP Checker used for?
Instantly tell whether an IPv4 address is public, private, loopback, link-local, or reserved.
Is the Public or Private IP Checker free and private?
Yes — it's completely free and runs entirely in your browser. Whatever you enter stays on your device and is never uploaded to any server.
Do I need to install anything to use the Public or Private IP Checker?
No. It works in any modern web browser on desktop, tablet, or phone — no downloads, no browser extensions, and no account required.