Does this validator send my UUID anywhere?
No. Validation happens locally in your browser.
Developer
UUID Validator
Paste a UUID to check whether it is valid, normalize its format and inspect the version and variant without sending anything to a server.
Check a pasted UUID, normalize it and copy the cleaned value if it is valid.
✓ Tool inputs are processed in your browser✓ No account
Validate UUIDs locally in your browser.
When to use this tool
Use it when you want to confirm that a pasted identifier is a valid UUID and see the normalized lowercase form before you reuse it in code, docs or a database entry. Validation happens locally in the browser.
- Check a UUID copied from logs, API payloads or documentation.
- Normalize uppercase or brace-wrapped UUIDs before pasting them elsewhere.
- Confirm the version and variant of an identifier without opening another tool.
Related tools
Related tools
FAQ
Questions
Questions
What formats does it accept?
It accepts canonical UUIDs, optional surrounding braces and urn:uuid: prefixes, then normalizes to lowercase.
Can I copy the normalized UUID?
Yes. When the value is valid, the normalized lowercase UUID is ready to copy.