Generates random version-4 UUIDs (crypto.randomUUID(), cryptographically random) — nothing here touches a server.
Generate random version-4 UUIDs (also called GUIDs) one at a time or in batches — for database keys, test fixtures, correlation IDs or anywhere you need a globally unique identifier. Copy a single one or the whole list.
IDs are produced with the browser's cryptographically secure random generator, so they are as unique as UUIDs produced by any server library. Nothing is stored or transmitted.
A 128-bit identifier made of random bits, formatted as 8-4-4-4-12 hex characters. Version 4 is the random variant — the one most applications use.
The chance is astronomically small (122 random bits). You would need to generate billions per second for centuries before a collision became likely.
Yes. GUID is Microsoft's name for the same 128-bit format.
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