UUID Generator

Generate universally unique identifiers instantly. Powered by your browser's cryptographic API - no data leaves your device.

Version

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UUID v4 has 5.3 × 10³⁶ possible combinations - generating 1 billion per second, it would take 85 years to reach a 50% chance of a single duplicate.

Provided as-is with no guarantees of uniqueness or fitness for any specific purpose.