● Identifiers & Time
UUID Validator
Validate UUID syntax and determine version and variant compliance.
Processed locally. Your input stays in this browser.
Zero Data SentValid Structural SyntaxRFC 4122 Compliant
Version: v4 (Randomly generated)Variant: RFC 4122 / DCE 1.1 (10xx)Format: standard
1 line•36 chars•36 B
Ctrl/Cmd+Enter run
How It Works
- 1.Paste a 36-character hyphenated UUID or 32-character hyphenless hex string into the editor.
- 2.The validator inspects structural syntax, variant bits (RFC 4122 / DCE 1.1), and version nibbles.
- 3.Inspect structural validity, version classification (v1-v5), and variant compliance.
Common Use Cases
- •Verifying whether database keys are structurally valid UUID v4 tokens.
- •Checking variant compliance for RFC 4122 interoperability.
Frequently Asked Questions
Which UUID versions are detected?
Versions 1 through 5, Nil UUID, and 32-character hexadecimal strings.