IP Address Tools

Free online utilities for network administrators, developers, and IT professionals

What is my IP?

Discover your public IP address and detailed information about your connection.

IP to Hostname/rDNS Lookup

Perform a reverse DNS (rDNS) lookup to get the hostname for an IP address.

CIDR to IP Range Converter (IPv4 and IPv6)

Convert CIDR notation to IP address ranges and vice versa.

IP to Number Converter

Convert IP addresses to their numeric representation and back.

IPv6 Expander/Collapser

Expand or collapse IPv6 addresses to their full or shortened forms.

About our IP address tools

Our free online IP tools are designed to help network administrators, developers, and IT professionals work with IP addresses more efficiently. These tools provide quick and accurate results for common IP-related tasks.

Why use our IP address tools?

  • Free to use with no registration required
  • Fast and accurate results
  • Works on all devices and browsers
  • No data collection or tracking

Need more advanced IP address data?

If you need more comprehensive IP data for your applications or business, check out our IP Data API or Downloadable IP Databases.