UUID v5 Generator
Free UUID v5 generator — deterministic SHA-1 name-based version 5 UUIDs from a namespace and name, in your browser.
Runs entirely in your browser — nothing you enter is uploaded or stored.
UUID v5 Generator
Generate a deterministic version 5 UUID from a namespace and a name — the same inputs always produce the same UUID. Everything is computed in your browser.
Frequently asked questions
What is a UUID v5?
A version 5 UUID is name-based: it is the SHA-1 hash of a namespace UUID plus a name. The same namespace and name always produce the same UUID, which is useful for deterministic identifiers.
Which namespace should I use?
Use DNS for domain names, URL for URLs, OID for object identifiers and X500 for LDAP DNs. Or paste a custom namespace UUID of your own.
Is it generated privately?
Yes — the UUID is computed entirely in your browser. Your name/namespace is never uploaded.