UUID v5 Generator

Create RFC-compatible UUIDv5 values locally with SHA-1 over the namespace UUID and UTF-8 name.

Namespace preset

Namespace UUID

Name / UTF-8 text

ReadyUUIDv5 hashes namespace bytes + name bytes with SHA-1 for deterministic identification. It is not a password-hashing or security-token primitive.

How to use this UUID v5 Generator

Generate deterministic name-based UUID version 5 identifiers from a namespace UUID and name. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.