A UUID (Universally Unique Identifier) version 4 is a 128-bit cryptographically secure random number used to uniquely identify database primary keys, transactions, and resources without a central authority.

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UUID v4 Generator

Generate cryptographically secure RFC 4122 UUID v4 strings and GUIDs in bulk.

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Generated Identifiers

Cryptographically Secure UUID v4 Generator

UUID v4 uses 122 bits of pseudo-randomness generated via browser crypto.getRandomValues() API, offering virtually 0% collision probability across millions of database keys.