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Validate UUID syntax, detect UUID version (v1-v5), and batch validate.
Verify Universally Unique Identifiers (UUID / GUID). Validates RFC 4122 compliance, identifies version (v1, v3, v4, v5, or nil), detects variant, and supports multi-line batch validation with error highlights.
Unlike traditional web tools that send your personal data, uploaded photos, or sensitive text to remote cloud servers, our UUID Validator operates strictly inside your client browser sandbox. This guarantees high processing speeds without network throttling, and ensures your data privacy is completely preserved.
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Version 4 (Cryptographically random) • Variant: RFC 4122 / Leach-Salz
Version 1 (Date-time & MAC address) • Variant: RFC 4122 / Leach-Salz
Nil UUID (all zeros) • Variant: N/A
Does not match RFC 4122 standard UUID format.