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Generate random UUID v4 identifiers, one or many at a time.
Generate cryptographically random version 4 UUIDs (also called GUIDs) one at a time or in bulk, ready to copy. Generated locally with your browser's secure random source.
Runs entirely in your browser — nothing is uploaded.
Version 4 UUIDs, generated with the browser's secure random source (crypto.randomUUID).
UUID v4 has 122 random bits, making collisions astronomically unlikely — safe to use as unique identifiers.