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Free Network Tools
Everything You Need
Professional-grade network tools, completely free. No ads, no signup, no limits.
VPN Leak Test
Detect if your VPN is leaking your real IP address through WebRTC. Works on all major browsers.
DNS Leak Test
Check if your DNS queries are exposing your real identity and location, even through a VPN.
Port Scanner
Scan open ports on any IP address or hostname. Check common ports instantly from your browser.
IP Lookup
Full geolocation, ISP, ASN, and organization info for any IP address worldwide.
Blacklist Check
Check if your IP is listed on spam blacklists or threat databases. Instant results across 100+ lists.
Password Generator
Generate cryptographically secure passwords with custom length and character sets.
WHOIS Lookup
Query WHOIS records for any domain or IP. See registration details, nameservers, and more.
Reverse DNS
Find the hostname associated with any IP address. Useful for network diagnostics.
Built Different
While competitors show you ads and require accounts, we just show you your IP.
Instant Results
Your IP and full network analysis in under 200ms. No loading spinners.
Privacy First
We process your IP in-memory only. Nothing is logged, stored, or sold.
Globally Accurate
Geo data sourced from multiple providers for the highest accuracy worldwide.
Developer API
Free JSON API at whatismyip.codes. No key required for basic usage.
Frequently Asked Questions
Everything you need to know about IP addresses and network privacy.