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ident.me vs What IP: catalog facts
ident.me	What IP
Free The website is free to use.	Free Free and open source under the GPL 3.0.
iOS, Web	Linux
Shows IPv4 and IPv6 addresses side by side Reveals WebRTC addresses that can leak past a VPN	Local and public IP for every interface in one window Checks whether listening ports are publicly reachable
Geolocation of IP addresses is approximate Needs an internet connection to work	Linux only Basic scanning compared with dedicated network scanners
Downloadable app, Web application	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-or-later
No account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.