Developer

UUID Validator

Check if a string is a valid RFC 4122 UUID and identify its version (v1–v8) and variant. Useful for API debugging and data validation.

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Frequently asked questions

Is this tool free?+

Yes. Every Utilio utility is free with no sign-up, usage limits, or paywalls.

Do you store my data?+

No. Processing happens entirely in your browser. Your input never leaves your device.

Can I use this tool offline?+

Yes. Once the page loads, most tools continue working without an internet connection.