UUID Generator

Generate secure UUID v4 values in bulk with formatting options.


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What UUIDs Are

UUIDs are 128-bit identifiers designed to be unique across systems without central coordination.

When to Use UUID v4

  • Client-side temporary IDs before database writes.
  • Distributed systems where globally unique IDs are needed.
  • Identifiers where predictability should be minimized.

Version Notes

RFC 9562 defines modern UUID guidance and multiple versions.

References