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.