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🧭 IPv6 Toolkit

Parse IPv6 addresses locally in your browser: canonicalize, classify, CIDR compute, equal-length subnet split, EUI-64 round-trip, and batch validation. Includes Teredo decoding and .ip6.arpa reverse DNS generation.

V1 only handles local IPv6 parsing and derivations. Five tabs — Analyze, CIDR, Subnet Split, EUI-64, and Batch — share one parser. It does not run network probes, geolocate, generate random addresses, or rebuild signed links.

Accepts compressed, expanded, zone ID, embedded IPv4, and [bracketed] forms. This tab does not accept a /prefix.

Status Initial
Type —
Scope —
IPv4 Tail —
Zone ID —

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Free online IPv6 Toolkit. Parse IPv6 addresses locally in your browser: compress / expand, classify address type (GUA / ULA / link-local / multicast / Teredo / 6to4 / NAT64 and more), CIDR math, equal-length subnet split, MAC ↔ EUI-64 round trip, batch validation, and .ip6.arpa reverse DNS generation. Everything stays in the current browser — no uploads, no IP lookups or geolocation.