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UUID Generator

Create UUID v4 (random), v1 (time-based), or v5 (namespace + name). Export up to 100 at once in standard, uppercase, brace, or hyphen-free formats.

How to uUID Generator

  1. Pick UUID version and output format.
  2. For v5, enter a namespace and name string.
  3. Generate, copy, or download as a .txt file.

Private by design — UUIDs are generated locally. No network calls are made.

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Frequently asked questions

Which UUID version should I use?

v4 is the default for most apps. v1 includes a timestamp. v5 is deterministic from a namespace and name (DNS or URL namespace built in).

Are these RFC-compliant?

Yes — versions follow standard bit layout for variant and version fields.