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Utilities

UUID Validator Documentation

Use the free UUID Validator →

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

What does it do?

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

How does it work?

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.

When to use it
  • 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.
Inputs and outputs
Input
Text, files, or values entered in the browser, depending on the tool.
Output
A result shown in the browser that can be reviewed or copied where supported.
Limitations
  • The format check does not establish uniqueness, randomness quality, database existence, or access permission.
Privacy and data handling

Inputs for this browser-side tool are processed locally and are not sent to SiteIndex. Normal page analytics may still be collected as described in the Privacy Policy. Read the Privacy Policy.

How to use it

  1. Paste the UUID string.
  2. Read the format result, version, and variant.
  3. Use the result as a syntax check only, not evidence that a record exists.

Related tools

UUID GeneratorLearn moreULID GeneratorLearn moreHash GeneratorLearn more