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UUID v5 Generator Online

Free online deterministic UUID v5 generator that hashes a namespace plus name with SHA-1 rules.

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Free online deterministic UUID v5 generator that hashes a namespace plus name with SHA-1 rules.

How it works

UUID v5 generates a stable UUID based on a namespace UUID and a name using SHA-1. It’s useful when you need reproducible IDs for the same input.

Example

Namespace:
DNS (6ba7b810-9dad-11d1-80b4-00c04fd430c8)
Name:
example.com

Output:
(deterministic UUID v5)

FAQ

When should I use UUID v5?

Use v5 when you want the same input to always generate the same UUID, such as stable identifiers for known names.

Is SHA-1 secure here?

For UUID v5, SHA-1 is used for deterministic generation, not for cryptographic security. Avoid SHA-1 for security-sensitive hashing.

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