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Illustration of an IPv4 dotted-quad address and an IPv6 hextet address both being checked with a validation mark

IPv4/IPv6 Validator

Type an IPv4 or IPv6 address to validate it, see its canonical normalized form, and its classification. Runs entirely in your browser.

Classification covers the classic well-known ranges (RFC 1918 private space, RFC 4193 unique-local, loopback, link-local, multicast, unspecified, IPv4 broadcast) — narrower than the full IANA special-purpose address registry.

💻 Show API usage examples (cURL) 
curl -sS -X POST https://devops.majbase.com/ip-validator/api -H "Content-Type: application/json" -d '{"ip":"2001:db8::1"}'

Returns {"valid", "version", "normalized", "type"}, or {"valid": false, "error": "..."}.

🤖 Use this API as a Claude Skill

Want an AI agent (Claude Code, claude.ai, or anything else that supports the Agent Skills format) to use this tool for you on request? Download the skill below and add it:

⬇️ Download SKILL.md · View raw