🆔 UUID v4 Generator

Generate RFC 4122 version 4 universally unique identifiers. Runs entirely in your browser using cryptographically secure randomness — nothing is uploaded.

💡 UUIDs are 128-bit values shown as 36 characters (or 32 without hyphens). Version 4 uses random bits, giving ~2¹²² possible values — collisions are effectively impossible.

Fully offline & private: every UUID is computed locally with the Web Crypto API. No server round-trip, no history stored.