IPv6 Validator
Paste an IPv6 address to check whether it is valid — complete with the reason if it is invalid and a component breakdown if it is valid. Everything is processed on your device.
Everything runs in your browser. Your data is never sent to our servers.
Example
Example Input
2001:db8::8a2e:370:7334
Example Output
✓ VALID — compressed (::)
How to Use
- 1Paste the an IPv6 address you want to check into the input box.
- 2If the tool offers extra options (e.g. dialect, flags, or variant), set them as needed.
- 3Click Validate (or press Ctrl+Enter).
- 4Read the result badge — VALID, INVALID, or VALID with a warning — along with the details and the list of issues, if any.
About IPv6 Validator
IPv6 Validator checks whether a string is a valid IPv6 address, including the "::" compressed form, embedded IPv4 (::ffff:192.0.2.1), and a zone id (fe80::1%eth0). It shows whether the address is compressed and its scope.
IPv6 has many valid notations, so manual validation is error-prone. This tool enforces the hex-group rules and the "use :: only once" rule.
FAQ
Is my data sent to a server?
No. All validation runs in your browser with JavaScript. Nothing is uploaded, logged, or stored on our servers — safe for sensitive data.
How is this validator different from a parser or formatter?
A validator answers one question: is this input correct/valid? It returns a valid/invalid badge with the reason. A parser breaks input into its components, and a formatter tidies its layout. Use a validator when you just need to confirm something is sound before using it.