Does this check for uniqueness?

No. It only validates the format and structure of a single value; uniqueness cannot be verified without a database to compare against.

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UUID Validator

Check whether a value is a valid UUID and identify its version and variant.

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UUID Validator

Status

Valid UUID

Version

Variant

RFC 4122

What is UUID Validator?

Check whether a value is a valid UUID and identify its version and variant.

How it works

SiteIndex checks the pasted value against the canonical UUID pattern, then reads its version and variant bits to report which UUID version produced it, if any.

Where a network request is required, SiteIndex validates public HTTP/HTTPS targets before making the request.

Common uses

Confirm a value from a database or API is a well-formed UUID.
Identify which UUID version (v1, v4, v7, etc.) a value uses.
Catch a malformed identifier before it causes a downstream error.

Limitations

Results depend on the browser, network, input, and external service involved.
This tool is informational and does not replace specialist diagnostics or professional advice.

FAQ

Does this check for uniqueness?: No. It only validates the format and structure of a single value; uniqueness cannot be verified without a database to compare against.

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